mirror of
https://github.com/haraldk/TwelveMonkeys.git
synced 2025-08-03 03:25:28 -04:00
parent
b1ac99ba1a
commit
15ce9d6b64
@ -28,6 +28,7 @@
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package com.twelvemonkeys.imageio.plugins.jpeg;
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import com.twelvemonkeys.imageio.AbstractMetadata;
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import com.twelvemonkeys.imageio.ImageReaderBase;
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import com.twelvemonkeys.imageio.color.ColorSpaces;
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import com.twelvemonkeys.imageio.color.YCbCrConverter;
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@ -39,16 +40,17 @@ import com.twelvemonkeys.imageio.metadata.exif.TIFF;
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import com.twelvemonkeys.imageio.metadata.jpeg.JPEG;
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import com.twelvemonkeys.imageio.metadata.jpeg.JPEGSegment;
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import com.twelvemonkeys.imageio.metadata.jpeg.JPEGSegmentUtil;
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import com.twelvemonkeys.imageio.plugins.jpeg.lossless.DataStream;
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import com.twelvemonkeys.imageio.plugins.jpeg.lossless.JPEGLosslessDecoderWrapper;
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import com.twelvemonkeys.imageio.util.ImageTypeSpecifiers;
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import com.twelvemonkeys.imageio.util.ProgressListenerBase;
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import com.twelvemonkeys.lang.Validate;
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import com.twelvemonkeys.xml.XMLSerializer;
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import org.w3c.dom.Node;
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import javax.imageio.*;
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import javax.imageio.event.IIOReadUpdateListener;
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import javax.imageio.event.IIOReadWarningListener;
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import javax.imageio.metadata.IIOInvalidTreeException;
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import javax.imageio.metadata.IIOMetadata;
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import javax.imageio.metadata.IIOMetadataFormatImpl;
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import javax.imageio.metadata.IIOMetadataNode;
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@ -136,6 +138,10 @@ public class JPEGImageReader extends ImageReaderBase {
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map.put(JPEG.SOF14, null);
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map.put(JPEG.SOF15, null);
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map.put(JPEG.DQT, null);
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map.put(JPEG.DHT, null);
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map.put(JPEG.SOS, null);
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return Collections.unmodifiableMap(map);
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}
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@ -201,6 +207,12 @@ public class JPEGImageReader extends ImageReaderBase {
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@Override
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public int getNumImages(boolean allowSearch) throws IOException {
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if (allowSearch) {
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if (isLossless()) {
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return 1;
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}
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}
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try {
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return delegate.getNumImages(allowSearch);
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}
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@ -210,13 +222,43 @@ public class JPEGImageReader extends ImageReaderBase {
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}
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}
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private boolean isLossless() throws IOException {
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assertInput();
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try {
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SOFSegment sof = getSOF();
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if (sof.marker == JPEG.SOF3) {
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return true;
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}
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}
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catch (IIOException ignore) {
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// May happen if no SOF is found, in case we'll just fall through
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}
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return false;
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}
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@Override
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public int getWidth(int imageIndex) throws IOException {
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checkBounds(imageIndex);
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SOFSegment sof = getSOF();
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if (sof.marker == JPEG.SOF3) {
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return sof.samplesPerLine;
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}
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return delegate.getWidth(imageIndex);
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}
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@Override
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public int getHeight(int imageIndex) throws IOException {
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checkBounds(imageIndex);
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SOFSegment sof = getSOF();
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if (sof.marker == JPEG.SOF3) {
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return sof.lines;
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}
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return delegate.getHeight(imageIndex);
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}
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@ -277,7 +319,7 @@ public class JPEGImageReader extends ImageReaderBase {
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return rawType;
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}
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}
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catch (NullPointerException ignore) {
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catch (IIOException | NullPointerException ignore) {
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// Fall through
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}
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@ -340,33 +382,11 @@ public class JPEGImageReader extends ImageReaderBase {
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JPEGColorSpace sourceCSType = getSourceCSType(getJFIF(), adobeDCT, sof);
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//try to read an JPEG Lossless image
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if(sof.marker == JPEG.SOF3){
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JPEGLosslessDecoderWrapper decoder = new JPEGLosslessDecoderWrapper();
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ImageInputStream inputStream = (ImageInputStream) this.getInput();
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/* try to read the input stream as once. If length is not supported
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* the image is read blockwise
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*/
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byte[] rawByteData;
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long byteLength = inputStream.length();
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if(byteLength > 0 && byteLength < Integer.MAX_VALUE){
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rawByteData = new byte[(int)byteLength];
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inputStream.read(rawByteData);
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} else {
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ByteArrayOutputStream bytes = new ByteArrayOutputStream(1024 * 1024 /* Provide a size close to what is likely the case for better performance*/);
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byte[] buffer = new byte[1024];
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int count;
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while ((count = inputStream.read(buffer)) > 0) {
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bytes.write(buffer, 0, count);
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}
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rawByteData = bytes.toByteArray();
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}
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//try do read the image, IOException can be thrown
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return decoder.readImage(rawByteData);
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if (sof.marker == JPEG.SOF3) {
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// TODO: What about stream position?
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// TODO: Param handling: Source region, offset, subsampling, destination, destination type, etc....
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// Read image as lossless
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return new JPEGLosslessDecoderWrapper().readImage(imageInput);
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}
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// We need to apply ICC profile unless the profile is sRGB/default gray (whatever that is)
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@ -746,34 +766,35 @@ public class JPEGImageReader extends ImageReaderBase {
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initHeader();
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for (JPEGSegment segment : segments) {
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if (JPEG.SOF0 >= segment.marker() && segment.marker() <= JPEG.SOF3 ||
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JPEG.SOF5 >= segment.marker() && segment.marker() <= JPEG.SOF7 ||
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JPEG.SOF9 >= segment.marker() && segment.marker() <= JPEG.SOF11 ||
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JPEG.SOF13 >= segment.marker() && segment.marker() <= JPEG.SOF15) {
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if (JPEG.SOF0 <= segment.marker() && segment.marker() <= JPEG.SOF3 ||
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JPEG.SOF5 <= segment.marker() && segment.marker() <= JPEG.SOF7 ||
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JPEG.SOF9 <= segment.marker() && segment.marker() <= JPEG.SOF11 ||
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JPEG.SOF13 <= segment.marker() && segment.marker() <= JPEG.SOF15) {
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DataInputStream data = new DataInputStream(segment.data());
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try {
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int samplePrecision = data.readUnsignedByte();
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int lines = data.readUnsignedShort();
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int samplesPerLine = data.readUnsignedShort();
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int componentsInFrame = data.readUnsignedByte();
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SOFComponent[] components = new SOFComponent[componentsInFrame];
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for (int i = 0; i < componentsInFrame; i++) {
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int id = data.readUnsignedByte();
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int sub = data.readUnsignedByte();
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int qtSel = data.readUnsignedByte();
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components[i] = new SOFComponent(id, ((sub & 0xF0) >> 4), (sub & 0xF), qtSel);
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}
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return new SOFSegment(segment.marker(), samplePrecision, lines, samplesPerLine, components);
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}
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finally {
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data.close();
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try (DataInputStream data = new DataInputStream(segment.data())) {
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return SOFSegment.read(segment.marker(), data);
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}
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// try {
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// int samplePrecision = data.readUnsignedByte();
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// int lines = data.readUnsignedShort();
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// int samplesPerLine = data.readUnsignedShort();
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// int componentsInFrame = data.readUnsignedByte();
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//
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// SOFComponent[] components = new SOFComponent[componentsInFrame];
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//
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// for (int i = 0; i < componentsInFrame; i++) {
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// int id = data.readUnsignedByte();
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// int sub = data.readUnsignedByte();
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// int qtSel = data.readUnsignedByte();
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//
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// components[i] = new SOFComponent(id, ((sub & 0xF0) >> 4), (sub & 0xF), qtSel);
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// }
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//
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// return new SOFSegment(segment.marker(), samplePrecision, lines, samplesPerLine, components);
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// }
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// finally {
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// data.close();
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// }
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}
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}
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@ -960,7 +981,15 @@ public class JPEGImageReader extends ImageReaderBase {
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}
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@Override
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public Raster readRaster(int imageIndex, ImageReadParam param) throws IOException {
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public Raster readRaster(final int imageIndex, final ImageReadParam param) throws IOException {
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checkBounds(imageIndex);
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if (isLossless()) {
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// TODO: What about stream position?
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// TODO: Param handling: Reading as raster should support source region, subsampling etc.
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return new JPEGLosslessDecoderWrapper().readRaster(imageInput);
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}
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return delegate.readRaster(imageIndex, param);
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}
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@ -1101,24 +1130,58 @@ public class JPEGImageReader extends ImageReaderBase {
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IIOMetadata imageMetadata;
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try {
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imageMetadata = delegate.getImageMetadata(imageIndex);
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}
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catch (IndexOutOfBoundsException knownIssue) {
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// TMI-101: com.sun.imageio.plugins.jpeg.JPEGBuffer doesn't do proper sanity check of input data.
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throw new IIOException("Corrupt JPEG data: Bad segment length", knownIssue);
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}
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catch (NegativeArraySizeException knownIssue) {
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// Most likely from com.sun.imageio.plugins.jpeg.SOSMarkerSegment
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throw new IIOException("Corrupt JPEG data: Bad component count", knownIssue);
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}
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if (isLossless()) {
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return new AbstractMetadata(true, JPEGImage10MetadataCleaner.JAVAX_IMAGEIO_JPEG_IMAGE_1_0, null, null, null) {
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@Override
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protected Node getNativeTree() {
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IIOMetadataNode root = new IIOMetadataNode(JPEGImage10MetadataCleaner.JAVAX_IMAGEIO_JPEG_IMAGE_1_0);
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if (imageMetadata != null && Arrays.asList(imageMetadata.getMetadataFormatNames()).contains(JPEGImage10MetadataCleaner.JAVAX_IMAGEIO_JPEG_IMAGE_1_0)) {
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if (metadataCleaner == null) {
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metadataCleaner = new JPEGImage10MetadataCleaner(this);
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root.appendChild(new IIOMetadataNode("JPEGvariety"));
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IIOMetadataNode markerSequence = new IIOMetadataNode("markerSequence");
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root.appendChild(markerSequence);
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for (JPEGSegment segment : segments) {
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switch (segment.marker()) {
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// SOF3 is the only one supported by now
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case JPEG.SOF3:
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markerSequence.appendChild(new IIOMetadataNode("sof"));
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break;
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case JPEG.DHT:
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markerSequence.appendChild(new IIOMetadataNode("dht"));
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break;
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case JPEG.DQT:
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markerSequence.appendChild(new IIOMetadataNode("dqt"));
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break;
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case JPEG.SOS:
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markerSequence.appendChild(new IIOMetadataNode("sos"));
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break;
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}
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}
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return root;
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}
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};
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}
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else {
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try {
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imageMetadata = delegate.getImageMetadata(imageIndex);
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}
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catch (IndexOutOfBoundsException knownIssue) {
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// TMI-101: com.sun.imageio.plugins.jpeg.JPEGBuffer doesn't do proper sanity check of input data.
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throw new IIOException("Corrupt JPEG data: Bad segment length", knownIssue);
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}
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catch (NegativeArraySizeException knownIssue) {
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// Most likely from com.sun.imageio.plugins.jpeg.SOSMarkerSegment
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throw new IIOException("Corrupt JPEG data: Bad component count", knownIssue);
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}
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return metadataCleaner.cleanMetadata(imageMetadata);
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if (imageMetadata != null && Arrays.asList(imageMetadata.getMetadataFormatNames()).contains(JPEGImage10MetadataCleaner.JAVAX_IMAGEIO_JPEG_IMAGE_1_0)) {
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if (metadataCleaner == null) {
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metadataCleaner = new JPEGImage10MetadataCleaner(this);
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}
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return metadataCleaner.cleanMetadata(imageMetadata);
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}
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}
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return imageMetadata;
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@ -1402,7 +1465,8 @@ public class JPEGImageReader extends ImageReaderBase {
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image = reader.getImageTypes(0).next().createBufferedImage((reader.getWidth(0) + subX - 1)/ subX, (reader.getHeight(0) + subY - 1) / subY);
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}
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else {
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image = reader.getImageTypes(0).next().createBufferedImage(reader.getWidth(0), reader.getHeight(0));
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// image = reader.getImageTypes(0).next().createBufferedImage(reader.getWidth(0), reader.getHeight(0));
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image = null;
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}
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param.setDestination(image);
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@ -28,6 +28,8 @@
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package com.twelvemonkeys.imageio.plugins.jpeg;
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import java.io.DataInput;
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import java.io.IOException;
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import java.util.Arrays;
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/**
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@ -63,4 +65,23 @@ final class SOFSegment {
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marker & 0xff - 0xc0, marker, samplePrecision, lines, samplesPerLine, Arrays.toString(components)
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);
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}
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public static SOFSegment read(final int marker, final DataInput data) throws IOException {
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int samplePrecision = data.readUnsignedByte();
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int lines = data.readUnsignedShort();
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int samplesPerLine = data.readUnsignedShort();
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int componentsInFrame = data.readUnsignedByte();
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SOFComponent[] components = new SOFComponent[componentsInFrame];
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for (int i = 0; i < componentsInFrame; i++) {
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int id = data.readUnsignedByte();
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int sub = data.readUnsignedByte();
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int qtSel = data.readUnsignedByte();
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components[i] = new SOFComponent(id, ((sub & 0xF0) >> 4), (sub & 0xF), qtSel);
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}
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return new SOFSegment(marker, samplePrecision, lines, samplesPerLine, components);
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}
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}
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@ -32,7 +32,7 @@ package com.twelvemonkeys.imageio.plugins.jpeg.lossless;
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public class ComponentSpec {
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protected int hSamp; // Horizontal sampling factor
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protected int quantTableSel; // Quantization table destination selector
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protected int vSamp; // Vertical
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protected int hSamp; // Horizontal sampling factor
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protected int quantTableSel; // Quantization table destination selector
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protected int vSamp; // Vertical
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}
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@ -1,40 +0,0 @@
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/*
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* Copyright (C) 2015 Michael Martinez
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* Changes: Added support for selection values 2-7, fixed minor bugs &
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* warnings, split into multiple class files, and general clean up.
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*
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* 08-25-2015: Helmut Dersch agreed to a license change from LGPL to MIT.
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*/
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/*
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* Copyright (C) Helmut Dersch
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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package com.twelvemonkeys.imageio.plugins.jpeg.lossless;
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public interface DataStream {
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int get16();
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int get8();
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}
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@ -30,99 +30,87 @@
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package com.twelvemonkeys.imageio.plugins.jpeg.lossless;
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import javax.imageio.stream.ImageInputStream;
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import java.io.IOException;
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public class FrameHeader {
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private ComponentSpec components[]; // Components
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private int dimX; // Number of samples per line
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private int dimY; // Number of lines
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private int numComp; // Number of component in the frame
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private int precision; // Sample Precision (from the original image)
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private ComponentSpec components[]; // Components
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private int dimX; // Number of samples per line
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private int dimY; // Number of lines
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private int numComp; // Number of component in the frame
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private int precision; // Sample Precision (from the original image)
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public ComponentSpec[] getComponents() {
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return components.clone();
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}
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public int getDimX() {
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return dimX;
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}
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public ComponentSpec[] getComponents() {
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return components.clone();
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}
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public int getDimY() {
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return dimY;
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}
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public int getNumComponents() {
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return numComp;
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}
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public int getPrecision() {
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return precision;
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}
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public int getDimX() {
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return dimX;
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}
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protected int read(final ImageInputStream data) throws IOException {
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int count = 0;
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final int length = data.readUnsignedShort();
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count += 2;
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precision = data.readUnsignedByte();
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count++;
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public int getDimY() {
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return dimY;
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}
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dimY = data.readUnsignedShort();
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count += 2;
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dimX = data.readUnsignedShort();
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count += 2;
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numComp = data.readUnsignedByte();
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count++;
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public int getNumComponents() {
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return numComp;
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}
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//components = new ComponentSpec[numComp]; // some image exceed this range...
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components = new ComponentSpec[256]; // setting to 256 -- not sure what it should be.
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for (int i = 1; i <= numComp; i++) {
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if (count > length) {
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throw new IOException("ERROR: frame format error");
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}
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final int c = data.readUnsignedByte();
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count++;
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public int getPrecision() {
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||||
return precision;
|
||||
}
|
||||
if (count >= length) {
|
||||
throw new IOException("ERROR: frame format error [c>=Lf]");
|
||||
}
|
||||
|
||||
final int temp = data.readUnsignedByte();
|
||||
count++;
|
||||
|
||||
if (components[c] == null) {
|
||||
components[c] = new ComponentSpec();
|
||||
}
|
||||
|
||||
protected int read(final DataStream data) throws IOException {
|
||||
int count = 0;
|
||||
components[c].hSamp = temp >> 4;
|
||||
components[c].vSamp = temp & 0x0F;
|
||||
components[c].quantTableSel = data.readUnsignedByte();
|
||||
count++;
|
||||
}
|
||||
|
||||
final int length = data.get16();
|
||||
count += 2;
|
||||
if (count != length) {
|
||||
throw new IOException("ERROR: frame format error [Lf!=count]");
|
||||
}
|
||||
|
||||
precision = data.get8();
|
||||
count++;
|
||||
|
||||
dimY = data.get16();
|
||||
count += 2;
|
||||
|
||||
dimX = data.get16();
|
||||
count += 2;
|
||||
|
||||
numComp = data.get8();
|
||||
count++;
|
||||
|
||||
//components = new ComponentSpec[numComp]; // some image exceed this range...
|
||||
components = new ComponentSpec[256]; // setting to 256 -- not sure what it should be.
|
||||
|
||||
for (int i = 1; i <= numComp; i++) {
|
||||
if (count > length) {
|
||||
throw new IOException("ERROR: frame format error");
|
||||
}
|
||||
|
||||
final int c = data.get8();
|
||||
count++;
|
||||
|
||||
if (count >= length) {
|
||||
throw new IOException("ERROR: frame format error [c>=Lf]");
|
||||
}
|
||||
|
||||
final int temp = data.get8();
|
||||
count++;
|
||||
|
||||
if (components[c] == null) {
|
||||
components[c] = new ComponentSpec();
|
||||
}
|
||||
|
||||
components[c].hSamp = temp >> 4;
|
||||
components[c].vSamp = temp & 0x0F;
|
||||
components[c].quantTableSel = data.get8();
|
||||
count++;
|
||||
}
|
||||
|
||||
if (count != length) {
|
||||
throw new IOException("ERROR: frame format error [Lf!=count]");
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
|
@ -30,134 +30,128 @@
|
||||
|
||||
package com.twelvemonkeys.imageio.plugins.jpeg.lossless;
|
||||
|
||||
import javax.imageio.stream.ImageInputStream;
|
||||
import java.io.IOException;
|
||||
|
||||
|
||||
public class HuffmanTable {
|
||||
|
||||
private final int l[][][] = new int[4][2][16];
|
||||
private final int th[] = new int[4]; // 1: this table is presented
|
||||
private final int v[][][][] = new int[4][2][16][200]; // tables
|
||||
private final int[][] tc = new int[4][2]; // 1: this table is presented
|
||||
private final int l[][][] = new int[4][2][16];
|
||||
private final int th[] = new int[4]; // 1: this table is presented
|
||||
private final int v[][][][] = new int[4][2][16][200]; // tables
|
||||
private final int[][] tc = new int[4][2]; // 1: this table is presented
|
||||
|
||||
public static final int MSB = 0x80000000;
|
||||
public static final int MSB = 0x80000000;
|
||||
|
||||
public HuffmanTable() {
|
||||
tc[0][0] = 0;
|
||||
tc[1][0] = 0;
|
||||
tc[2][0] = 0;
|
||||
tc[3][0] = 0;
|
||||
tc[0][1] = 0;
|
||||
tc[1][1] = 0;
|
||||
tc[2][1] = 0;
|
||||
tc[3][1] = 0;
|
||||
th[0] = 0;
|
||||
th[1] = 0;
|
||||
th[2] = 0;
|
||||
th[3] = 0;
|
||||
}
|
||||
|
||||
protected int read(final ImageInputStream data, final int[][][] HuffTab) throws IOException {
|
||||
int count = 0;
|
||||
final int length = data.readUnsignedShort();
|
||||
count += 2;
|
||||
|
||||
public HuffmanTable() {
|
||||
tc[0][0] = 0;
|
||||
tc[1][0] = 0;
|
||||
tc[2][0] = 0;
|
||||
tc[3][0] = 0;
|
||||
tc[0][1] = 0;
|
||||
tc[1][1] = 0;
|
||||
tc[2][1] = 0;
|
||||
tc[3][1] = 0;
|
||||
th[0] = 0;
|
||||
th[1] = 0;
|
||||
th[2] = 0;
|
||||
th[3] = 0;
|
||||
}
|
||||
while (count < length) {
|
||||
final int temp = data.readUnsignedByte();
|
||||
count++;
|
||||
final int t = temp & 0x0F;
|
||||
if (t > 3) {
|
||||
throw new IOException("ERROR: Huffman table ID > 3");
|
||||
}
|
||||
|
||||
final int c = temp >> 4;
|
||||
if (c > 2) {
|
||||
throw new IOException("ERROR: Huffman table [Table class > 2 ]");
|
||||
}
|
||||
|
||||
th[t] = 1;
|
||||
tc[t][c] = 1;
|
||||
|
||||
protected int read(final DataStream data, final int[][][] HuffTab) throws IOException {
|
||||
int count = 0;
|
||||
final int length = data.get16();
|
||||
count += 2;
|
||||
for (int i = 0; i < 16; i++) {
|
||||
l[t][c][i] = data.readUnsignedByte();
|
||||
count++;
|
||||
}
|
||||
|
||||
while (count < length) {
|
||||
final int temp = data.get8();
|
||||
count++;
|
||||
final int t = temp & 0x0F;
|
||||
if (t > 3) {
|
||||
throw new IOException("ERROR: Huffman table ID > 3");
|
||||
}
|
||||
for (int i = 0; i < 16; i++) {
|
||||
for (int j = 0; j < l[t][c][i]; j++) {
|
||||
if (count > length) {
|
||||
throw new IOException("ERROR: Huffman table format error [count>Lh]");
|
||||
}
|
||||
v[t][c][i][j] = data.readUnsignedByte();
|
||||
count++;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
final int c = temp >> 4;
|
||||
if (c > 2) {
|
||||
throw new IOException("ERROR: Huffman table [Table class > 2 ]");
|
||||
}
|
||||
if (count != length) {
|
||||
throw new IOException("ERROR: Huffman table format error [count!=Lf]");
|
||||
}
|
||||
|
||||
th[t] = 1;
|
||||
tc[t][c] = 1;
|
||||
for (int i = 0; i < 4; i++) {
|
||||
for (int j = 0; j < 2; j++) {
|
||||
if (tc[i][j] != 0) {
|
||||
buildHuffTable(HuffTab[i][j], l[i][j], v[i][j]);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for (int i = 0; i < 16; i++) {
|
||||
l[t][c][i] = data.get8();
|
||||
count++;
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
for (int i = 0; i < 16; i++) {
|
||||
for (int j = 0; j < l[t][c][i]; j++) {
|
||||
if (count > length) {
|
||||
throw new IOException("ERROR: Huffman table format error [count>Lh]");
|
||||
}
|
||||
v[t][c][i][j] = data.get8();
|
||||
count++;
|
||||
}
|
||||
}
|
||||
}
|
||||
// Build_HuffTab()
|
||||
// Parameter: t table ID
|
||||
// c table class ( 0 for DC, 1 for AC )
|
||||
// L[i] # of codewords which length is i
|
||||
// V[i][j] Huffman Value (length=i)
|
||||
// Effect:
|
||||
// build up HuffTab[t][c] using L and V.
|
||||
private void buildHuffTable(final int tab[], final int L[], final int V[][]) throws IOException {
|
||||
int currentTable, temp;
|
||||
int k;
|
||||
temp = 256;
|
||||
k = 0;
|
||||
|
||||
if (count != length) {
|
||||
throw new IOException("ERROR: Huffman table format error [count!=Lf]");
|
||||
}
|
||||
for (int i = 0; i < 8; i++) { // i+1 is Code length
|
||||
for (int j = 0; j < L[i]; j++) {
|
||||
for (int n = 0; n < (temp >> (i + 1)); n++) {
|
||||
tab[k] = V[i][j] | ((i + 1) << 8);
|
||||
k++;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for (int i = 0; i < 4; i++) {
|
||||
for (int j = 0; j < 2; j++) {
|
||||
if (tc[i][j] != 0) {
|
||||
buildHuffTable(HuffTab[i][j], l[i][j], v[i][j]);
|
||||
}
|
||||
}
|
||||
}
|
||||
for (int i = 1; k < 256; i++, k++) {
|
||||
tab[k] = i | MSB;
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
currentTable = 1;
|
||||
k = 0;
|
||||
|
||||
|
||||
|
||||
// Build_HuffTab()
|
||||
// Parameter: t table ID
|
||||
// c table class ( 0 for DC, 1 for AC )
|
||||
// L[i] # of codewords which length is i
|
||||
// V[i][j] Huffman Value (length=i)
|
||||
// Effect:
|
||||
// build up HuffTab[t][c] using L and V.
|
||||
private void buildHuffTable(final int tab[], final int L[], final int V[][]) throws IOException {
|
||||
int currentTable, temp;
|
||||
int k;
|
||||
temp = 256;
|
||||
k = 0;
|
||||
|
||||
for (int i = 0; i < 8; i++) { // i+1 is Code length
|
||||
for (int j = 0; j < L[i]; j++) {
|
||||
for (int n = 0; n < (temp >> (i + 1)); n++) {
|
||||
tab[k] = V[i][j] | ((i + 1) << 8);
|
||||
k++;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for (int i = 1; k < 256; i++, k++) {
|
||||
tab[k] = i | MSB;
|
||||
}
|
||||
|
||||
currentTable = 1;
|
||||
k = 0;
|
||||
|
||||
for (int i = 8; i < 16; i++) { // i+1 is Code length
|
||||
for (int j = 0; j < L[i]; j++) {
|
||||
for (int n = 0; n < (temp >> (i - 7)); n++) {
|
||||
tab[(currentTable * 256) + k] = V[i][j] | ((i + 1) << 8);
|
||||
k++;
|
||||
}
|
||||
if (k >= 256) {
|
||||
if (k > 256) {
|
||||
throw new IOException("ERROR: Huffman table error(1)!");
|
||||
}
|
||||
k = 0;
|
||||
currentTable++;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
for (int i = 8; i < 16; i++) { // i+1 is Code length
|
||||
for (int j = 0; j < L[i]; j++) {
|
||||
for (int n = 0; n < (temp >> (i - 7)); n++) {
|
||||
tab[(currentTable * 256) + k] = V[i][j] | ((i + 1) << 8);
|
||||
k++;
|
||||
}
|
||||
if (k >= 256) {
|
||||
if (k > 256) {
|
||||
throw new IOException("ERROR: Huffman table error(1)!");
|
||||
}
|
||||
k = 0;
|
||||
currentTable++;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
File diff suppressed because it is too large
Load Diff
@ -1,130 +1,135 @@
|
||||
package com.twelvemonkeys.imageio.plugins.jpeg.lossless;
|
||||
|
||||
import java.awt.image.BufferedImage;
|
||||
import java.awt.image.DataBufferByte;
|
||||
import java.awt.image.DataBufferInt;
|
||||
import java.awt.image.DataBufferUShort;
|
||||
import javax.imageio.stream.ImageInputStream;
|
||||
import java.awt.image.*;
|
||||
import java.io.ByteArrayOutputStream;
|
||||
import java.io.DataInput;
|
||||
import java.io.IOException;
|
||||
|
||||
/**
|
||||
* This class provides the conversion of a byte buffer
|
||||
* containing a JPEGLossless to an BufferedImage.
|
||||
* This class provides the conversion of a byte buffer
|
||||
* containing a JPEGLossless to an BufferedImage.
|
||||
* Therefore it uses the rii-mango JPEGLosslessDecoder
|
||||
* Library ( https://github.com/rii-mango/JPEGLosslessDecoder )
|
||||
*
|
||||
* <p>
|
||||
* Take care, that only the following lossless formats are supported
|
||||
* 1.2.840.10008.1.2.4.57 JPEG Lossless, Nonhierarchical (Processes 14)
|
||||
* 1.2.840.10008.1.2.4.70 JPEG Lossless, Nonhierarchical (Processes 14 [Selection 1])
|
||||
*
|
||||
* <p>
|
||||
* Currently the following conversions are supported
|
||||
* - 24Bit, RGB -> BufferedImage.TYPE_INT_RGB
|
||||
* - 8Bit, Grayscale -> BufferedImage.TYPE_BYTE_GRAY
|
||||
* - 16Bit, Grayscale -> BufferedImage.TYPE_USHORT_GRAY
|
||||
*
|
||||
* @author Hermann Kroll
|
||||
* - 24Bit, RGB -> BufferedImage.TYPE_INT_RGB
|
||||
* - 8Bit, Grayscale -> BufferedImage.TYPE_BYTE_GRAY
|
||||
* - 16Bit, Grayscale -> BufferedImage.TYPE_USHORT_GRAY
|
||||
*
|
||||
* @author Hermann Kroll
|
||||
*/
|
||||
public class JPEGLosslessDecoderWrapper {
|
||||
|
||||
/**
|
||||
* Converts a byte buffer (containing a jpeg lossless)
|
||||
* to an Java BufferedImage
|
||||
* Currently the following conversions are supported
|
||||
* - 24Bit, RGB -> BufferedImage.TYPE_INT_RGB
|
||||
* - 8Bit, Grayscale -> BufferedImage.TYPE_BYTE_GRAY
|
||||
* - 16Bit, Grayscale -> BufferedImage.TYPE_USHORT_GRAY
|
||||
*
|
||||
* @param data byte buffer which contains a jpeg lossless
|
||||
* @return if successfully a BufferedImage is returned
|
||||
* @throws IOException is thrown if the decoder failed or a conversion is not supported
|
||||
*/
|
||||
public BufferedImage readImage(byte[] data) throws IOException{
|
||||
JPEGLosslessDecoder decoder = new JPEGLosslessDecoder(data);
|
||||
|
||||
|
||||
int[][] decoded = decoder.decode();
|
||||
int width = decoder.getDimX();
|
||||
int height = decoder.getDimY();
|
||||
|
||||
if(decoder.getNumComponents() == 1){
|
||||
switch(decoder.getPrecision())
|
||||
{
|
||||
case 8:
|
||||
return read8Bit1ComponentGrayScale(decoded, width, height);
|
||||
case 16:
|
||||
return read16Bit1ComponentGrayScale(decoded, width, height);
|
||||
default:
|
||||
throw new IOException("JPEG Lossless with " + decoder.getPrecision() + " bit precision and 1 component cannot be decoded");
|
||||
}
|
||||
}
|
||||
//rgb
|
||||
if(decoder.getNumComponents() == 3){
|
||||
switch(decoder.getPrecision())
|
||||
{
|
||||
case 24:
|
||||
return read24Bit3ComponentRGB(decoded, width, height);
|
||||
/**
|
||||
* Converts a byte buffer (containing a jpeg lossless)
|
||||
* to an Java BufferedImage
|
||||
* Currently the following conversions are supported
|
||||
* - 24Bit, RGB -> BufferedImage.TYPE_INT_RGB
|
||||
* - 8Bit, Grayscale -> BufferedImage.TYPE_BYTE_GRAY
|
||||
* - 16Bit, Grayscale -> BufferedImage.TYPE_USHORT_GRAY
|
||||
*
|
||||
* @param input input stream which contains a jpeg lossless data
|
||||
* @return if successfully a BufferedImage is returned
|
||||
* @throws IOException is thrown if the decoder failed or a conversion is not supported
|
||||
*/
|
||||
public BufferedImage readImage(final ImageInputStream input) throws IOException {
|
||||
JPEGLosslessDecoder decoder = new JPEGLosslessDecoder(input);
|
||||
|
||||
default:
|
||||
throw new IOException("JPEG Lossless with " + decoder.getPrecision() + " bit precision and 3 components cannot be decoded");
|
||||
}
|
||||
}
|
||||
|
||||
throw new IOException("JPEG Lossless with " + decoder.getPrecision() + " bit precision and " + decoder.getNumComponents() + " component(s) cannot be decoded");
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* converts the decoded buffer into a BufferedImage
|
||||
* precision: 16 bit, componentCount = 1
|
||||
* @param decoded data buffer
|
||||
* @param width of the image
|
||||
* @param height of the image
|
||||
* @return a BufferedImage.TYPE_USHORT_GRAY
|
||||
*/
|
||||
private BufferedImage read16Bit1ComponentGrayScale(int[][] decoded, int width, int height){
|
||||
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_USHORT_GRAY);
|
||||
short[] imageBuffer = ((DataBufferUShort) image.getRaster().getDataBuffer()).getData();
|
||||
int[][] decoded = decoder.decode();
|
||||
int width = decoder.getDimX();
|
||||
int height = decoder.getDimY();
|
||||
|
||||
for(int i = 0; i < imageBuffer.length; i++){
|
||||
imageBuffer[i] = (short)decoded[0][i];
|
||||
}
|
||||
return image;
|
||||
}
|
||||
/**
|
||||
* converts the decoded buffer into a BufferedImage
|
||||
* precision: 8 bit, componentCount = 1
|
||||
* @param decoded data buffer
|
||||
* @param width of the image
|
||||
* @param height of the image
|
||||
* @return a BufferedImage.TYPE_BYTE_GRAY
|
||||
*/
|
||||
private BufferedImage read8Bit1ComponentGrayScale(int[][] decoded, int width, int height){
|
||||
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_BYTE_GRAY);
|
||||
byte[] imageBuffer = ((DataBufferByte) image.getRaster().getDataBuffer()).getData();
|
||||
if (decoder.getNumComponents() == 1) {
|
||||
switch (decoder.getPrecision()) {
|
||||
case 8:
|
||||
return read8Bit1ComponentGrayScale(decoded, width, height);
|
||||
case 16:
|
||||
return read16Bit1ComponentGrayScale(decoded, width, height);
|
||||
default:
|
||||
throw new IOException("JPEG Lossless with " + decoder.getPrecision() + " bit precision and 1 component cannot be decoded");
|
||||
}
|
||||
}
|
||||
//rgb
|
||||
if (decoder.getNumComponents() == 3) {
|
||||
switch (decoder.getPrecision()) {
|
||||
case 8:
|
||||
return read24Bit3ComponentRGB(decoded, width, height);
|
||||
|
||||
for(int i = 0; i < imageBuffer.length; i++){
|
||||
imageBuffer[i] = (byte)decoded[0][i];
|
||||
}
|
||||
return image;
|
||||
}
|
||||
|
||||
/**
|
||||
* converts the decoded buffer into a BufferedImage
|
||||
* precision: 24 bit, componentCount = 3
|
||||
* @param decoded data buffer
|
||||
* @param width of the image
|
||||
* @param height of the image
|
||||
* @return a BufferedImage.TYPE_INT_RGB
|
||||
*/
|
||||
private BufferedImage read24Bit3ComponentRGB(int[][] decoded, int width, int height){
|
||||
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
|
||||
int[] imageBuffer = ((DataBufferInt) image.getRaster().getDataBuffer()).getData();
|
||||
default:
|
||||
throw new IOException("JPEG Lossless with " + decoder.getPrecision() + " bit precision and 3 components cannot be decoded");
|
||||
}
|
||||
}
|
||||
|
||||
throw new IOException("JPEG Lossless with " + decoder.getPrecision() + " bit precision and " + decoder.getNumComponents() + " component(s) cannot be decoded");
|
||||
|
||||
}
|
||||
|
||||
public Raster readRaster(final ImageInputStream input) throws IOException {
|
||||
return readImage(input).getRaster();
|
||||
}
|
||||
|
||||
/**
|
||||
* converts the decoded buffer into a BufferedImage
|
||||
* precision: 16 bit, componentCount = 1
|
||||
*
|
||||
* @param decoded data buffer
|
||||
* @param width of the image
|
||||
* @param height of the image
|
||||
* @return a BufferedImage.TYPE_USHORT_GRAY
|
||||
*/
|
||||
private BufferedImage read16Bit1ComponentGrayScale(int[][] decoded, int width, int height) {
|
||||
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_USHORT_GRAY);
|
||||
short[] imageBuffer = ((DataBufferUShort) image.getRaster().getDataBuffer()).getData();
|
||||
|
||||
for (int i = 0; i < imageBuffer.length; i++) {
|
||||
imageBuffer[i] = (short) decoded[0][i];
|
||||
}
|
||||
return image;
|
||||
}
|
||||
|
||||
/**
|
||||
* converts the decoded buffer into a BufferedImage
|
||||
* precision: 8 bit, componentCount = 1
|
||||
*
|
||||
* @param decoded data buffer
|
||||
* @param width of the image
|
||||
* @param height of the image
|
||||
* @return a BufferedImage.TYPE_BYTE_GRAY
|
||||
*/
|
||||
private BufferedImage read8Bit1ComponentGrayScale(int[][] decoded, int width, int height) {
|
||||
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_BYTE_GRAY);
|
||||
byte[] imageBuffer = ((DataBufferByte) image.getRaster().getDataBuffer()).getData();
|
||||
|
||||
for (int i = 0; i < imageBuffer.length; i++) {
|
||||
imageBuffer[i] = (byte) decoded[0][i];
|
||||
}
|
||||
return image;
|
||||
}
|
||||
|
||||
/**
|
||||
* converts the decoded buffer into a BufferedImage
|
||||
* precision: 24 bit, componentCount = 3
|
||||
*
|
||||
* @param decoded data buffer
|
||||
* @param width of the image
|
||||
* @param height of the image
|
||||
* @return a BufferedImage.TYPE_INT_RGB
|
||||
*/
|
||||
private BufferedImage read24Bit3ComponentRGB(int[][] decoded, int width, int height) {
|
||||
// TODO: Consider 3_BYTE_BGR as this is more common?
|
||||
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
|
||||
int[] imageBuffer = ((DataBufferInt) image.getRaster().getDataBuffer()).getData();
|
||||
|
||||
for (int i = 0; i < imageBuffer.length; i++) {
|
||||
//convert to RGB
|
||||
imageBuffer[i] = (decoded[0][i] << 16) | (decoded[1][i] << 8) | (decoded[2][i]);
|
||||
}
|
||||
return image;
|
||||
}
|
||||
|
||||
for(int i = 0; i < imageBuffer.length; i++){
|
||||
//convert to RGB
|
||||
imageBuffer[i] = (decoded[0][i] << 16) | (decoded[1][i] << 8) | (decoded[2][i]);
|
||||
}
|
||||
return image;
|
||||
}
|
||||
|
||||
}
|
||||
|
@ -30,112 +30,109 @@
|
||||
|
||||
package com.twelvemonkeys.imageio.plugins.jpeg.lossless;
|
||||
|
||||
import javax.imageio.stream.ImageInputStream;
|
||||
import java.io.IOException;
|
||||
|
||||
|
||||
public class QuantizationTable {
|
||||
|
||||
private final int precision[] = new int[4]; // Quantization precision 8 or 16
|
||||
private final int[] tq = new int[4]; // 1: this table is presented
|
||||
private final int precision[] = new int[4]; // Quantization precision 8 or 16
|
||||
private final int[] tq = new int[4]; // 1: this table is presented
|
||||
|
||||
protected final int quantTables[][] = new int[4][64]; // Tables
|
||||
protected final int quantTables[][] = new int[4][64]; // Tables
|
||||
|
||||
public QuantizationTable() {
|
||||
tq[0] = 0;
|
||||
tq[1] = 0;
|
||||
tq[2] = 0;
|
||||
tq[3] = 0;
|
||||
}
|
||||
|
||||
protected int read(final ImageInputStream data, final int[] table) throws IOException {
|
||||
int count = 0;
|
||||
final int length = data.readUnsignedShort();
|
||||
count += 2;
|
||||
|
||||
public QuantizationTable() {
|
||||
tq[0] = 0;
|
||||
tq[1] = 0;
|
||||
tq[2] = 0;
|
||||
tq[3] = 0;
|
||||
}
|
||||
while (count < length) {
|
||||
final int temp = data.readUnsignedByte();
|
||||
count++;
|
||||
final int t = temp & 0x0F;
|
||||
|
||||
if (t > 3) {
|
||||
throw new IOException("ERROR: Quantization table ID > 3");
|
||||
}
|
||||
|
||||
precision[t] = temp >> 4;
|
||||
|
||||
protected int read(final DataStream data, final int[] table) throws IOException {
|
||||
int count = 0;
|
||||
final int length = data.get16();
|
||||
count += 2;
|
||||
if (precision[t] == 0) {
|
||||
precision[t] = 8;
|
||||
}
|
||||
else if (precision[t] == 1) {
|
||||
precision[t] = 16;
|
||||
}
|
||||
else {
|
||||
throw new IOException("ERROR: Quantization table precision error");
|
||||
}
|
||||
|
||||
while (count < length) {
|
||||
final int temp = data.get8();
|
||||
count++;
|
||||
final int t = temp & 0x0F;
|
||||
tq[t] = 1;
|
||||
|
||||
if (t > 3) {
|
||||
throw new IOException("ERROR: Quantization table ID > 3");
|
||||
}
|
||||
if (precision[t] == 8) {
|
||||
for (int i = 0; i < 64; i++) {
|
||||
if (count > length) {
|
||||
throw new IOException("ERROR: Quantization table format error");
|
||||
}
|
||||
|
||||
precision[t] = temp >> 4;
|
||||
quantTables[t][i] = data.readUnsignedByte();
|
||||
count++;
|
||||
}
|
||||
|
||||
if (precision[t] == 0) {
|
||||
precision[t] = 8;
|
||||
} else if (precision[t] == 1) {
|
||||
precision[t] = 16;
|
||||
} else {
|
||||
throw new IOException("ERROR: Quantization table precision error");
|
||||
}
|
||||
enhanceQuantizationTable(quantTables[t], table);
|
||||
}
|
||||
else {
|
||||
for (int i = 0; i < 64; i++) {
|
||||
if (count > length) {
|
||||
throw new IOException("ERROR: Quantization table format error");
|
||||
}
|
||||
|
||||
tq[t] = 1;
|
||||
quantTables[t][i] = data.readUnsignedShort();
|
||||
count += 2;
|
||||
}
|
||||
|
||||
if (precision[t] == 8) {
|
||||
for (int i = 0; i < 64; i++) {
|
||||
if (count > length) {
|
||||
throw new IOException("ERROR: Quantization table format error");
|
||||
}
|
||||
enhanceQuantizationTable(quantTables[t], table);
|
||||
}
|
||||
}
|
||||
|
||||
quantTables[t][i] = data.get8();
|
||||
count++;
|
||||
}
|
||||
if (count != length) {
|
||||
throw new IOException("ERROR: Quantization table error [count!=Lq]");
|
||||
}
|
||||
|
||||
enhanceQuantizationTable(quantTables[t], table);
|
||||
} else {
|
||||
for (int i = 0; i < 64; i++) {
|
||||
if (count > length) {
|
||||
throw new IOException("ERROR: Quantization table format error");
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
quantTables[t][i] = data.get16();
|
||||
count += 2;
|
||||
}
|
||||
private void enhanceQuantizationTable(final int qtab[], final int[] table) {
|
||||
for (int i = 0; i < 8; i++) {
|
||||
qtab[table[(0 * 8) + i]] *= 90;
|
||||
qtab[table[(4 * 8) + i]] *= 90;
|
||||
qtab[table[(2 * 8) + i]] *= 118;
|
||||
qtab[table[(6 * 8) + i]] *= 49;
|
||||
qtab[table[(5 * 8) + i]] *= 71;
|
||||
qtab[table[(1 * 8) + i]] *= 126;
|
||||
qtab[table[(7 * 8) + i]] *= 25;
|
||||
qtab[table[(3 * 8) + i]] *= 106;
|
||||
}
|
||||
|
||||
enhanceQuantizationTable(quantTables[t], table);
|
||||
}
|
||||
}
|
||||
for (int i = 0; i < 8; i++) {
|
||||
qtab[table[0 + (8 * i)]] *= 90;
|
||||
qtab[table[4 + (8 * i)]] *= 90;
|
||||
qtab[table[2 + (8 * i)]] *= 118;
|
||||
qtab[table[6 + (8 * i)]] *= 49;
|
||||
qtab[table[5 + (8 * i)]] *= 71;
|
||||
qtab[table[1 + (8 * i)]] *= 126;
|
||||
qtab[table[7 + (8 * i)]] *= 25;
|
||||
qtab[table[3 + (8 * i)]] *= 106;
|
||||
}
|
||||
|
||||
if (count != length) {
|
||||
throw new IOException("ERROR: Quantization table error [count!=Lq]");
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
|
||||
|
||||
private void enhanceQuantizationTable(final int qtab[], final int[] table) {
|
||||
for (int i = 0; i < 8; i++) {
|
||||
qtab[table[(0 * 8) + i]] *= 90;
|
||||
qtab[table[(4 * 8) + i]] *= 90;
|
||||
qtab[table[(2 * 8) + i]] *= 118;
|
||||
qtab[table[(6 * 8) + i]] *= 49;
|
||||
qtab[table[(5 * 8) + i]] *= 71;
|
||||
qtab[table[(1 * 8) + i]] *= 126;
|
||||
qtab[table[(7 * 8) + i]] *= 25;
|
||||
qtab[table[(3 * 8) + i]] *= 106;
|
||||
}
|
||||
|
||||
for (int i = 0; i < 8; i++) {
|
||||
qtab[table[0 + (8 * i)]] *= 90;
|
||||
qtab[table[4 + (8 * i)]] *= 90;
|
||||
qtab[table[2 + (8 * i)]] *= 118;
|
||||
qtab[table[6 + (8 * i)]] *= 49;
|
||||
qtab[table[5 + (8 * i)]] *= 71;
|
||||
qtab[table[1 + (8 * i)]] *= 126;
|
||||
qtab[table[7 + (8 * i)]] *= 25;
|
||||
qtab[table[3 + (8 * i)]] *= 106;
|
||||
}
|
||||
|
||||
for (int i = 0; i < 64; i++) {
|
||||
qtab[i] >>= 6;
|
||||
}
|
||||
}
|
||||
for (int i = 0; i < 64; i++) {
|
||||
qtab[i] >>= 6;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
@ -32,43 +32,31 @@ package com.twelvemonkeys.imageio.plugins.jpeg.lossless;
|
||||
|
||||
public class ScanComponent {
|
||||
|
||||
private int acTabSel; // AC table selector
|
||||
private int dcTabSel; // DC table selector
|
||||
private int scanCompSel; // Scan component selector
|
||||
private int acTabSel; // AC table selector
|
||||
private int dcTabSel; // DC table selector
|
||||
private int scanCompSel; // Scan component selector
|
||||
|
||||
public int getAcTabSel() {
|
||||
return acTabSel;
|
||||
}
|
||||
|
||||
public int getDcTabSel() {
|
||||
return dcTabSel;
|
||||
}
|
||||
|
||||
public int getAcTabSel() {
|
||||
return acTabSel;
|
||||
}
|
||||
public int getScanCompSel() {
|
||||
return scanCompSel;
|
||||
}
|
||||
|
||||
public void setAcTabSel(final int acTabSel) {
|
||||
this.acTabSel = acTabSel;
|
||||
}
|
||||
|
||||
public void setDcTabSel(final int dcTabSel) {
|
||||
this.dcTabSel = dcTabSel;
|
||||
}
|
||||
|
||||
public int getDcTabSel() {
|
||||
return dcTabSel;
|
||||
}
|
||||
|
||||
|
||||
|
||||
public int getScanCompSel() {
|
||||
return scanCompSel;
|
||||
}
|
||||
|
||||
|
||||
|
||||
public void setAcTabSel(final int acTabSel) {
|
||||
this.acTabSel = acTabSel;
|
||||
}
|
||||
|
||||
|
||||
|
||||
public void setDcTabSel(final int dcTabSel) {
|
||||
this.dcTabSel = dcTabSel;
|
||||
}
|
||||
|
||||
|
||||
|
||||
public void setScanCompSel(final int scanCompSel) {
|
||||
this.scanCompSel = scanCompSel;
|
||||
}
|
||||
public void setScanCompSel(final int scanCompSel) {
|
||||
this.scanCompSel = scanCompSel;
|
||||
}
|
||||
}
|
||||
|
@ -30,117 +30,97 @@
|
||||
|
||||
package com.twelvemonkeys.imageio.plugins.jpeg.lossless;
|
||||
|
||||
import javax.imageio.stream.ImageInputStream;
|
||||
import java.io.IOException;
|
||||
|
||||
|
||||
public class ScanHeader {
|
||||
|
||||
private int ah;
|
||||
private int al;
|
||||
private int numComp; // Number of components in the scan
|
||||
private int selection; // Start of spectral or predictor selection
|
||||
private int spectralEnd; // End of spectral selection
|
||||
private int ah;
|
||||
private int al;
|
||||
private int numComp; // Number of components in the scan
|
||||
private int selection; // Start of spectral or predictor selection
|
||||
private int spectralEnd; // End of spectral selection
|
||||
|
||||
protected ScanComponent components[];
|
||||
protected ScanComponent components[];
|
||||
|
||||
public int getAh() {
|
||||
return ah;
|
||||
}
|
||||
|
||||
public int getAl() {
|
||||
return al;
|
||||
}
|
||||
|
||||
public int getAh() {
|
||||
return ah;
|
||||
}
|
||||
public int getNumComponents() {
|
||||
return numComp;
|
||||
}
|
||||
|
||||
public int getSelection() {
|
||||
return selection;
|
||||
}
|
||||
|
||||
public int getSpectralEnd() {
|
||||
return spectralEnd;
|
||||
}
|
||||
|
||||
public int getAl() {
|
||||
return al;
|
||||
}
|
||||
public void setAh(final int ah) {
|
||||
this.ah = ah;
|
||||
}
|
||||
|
||||
public void setAl(final int al) {
|
||||
this.al = al;
|
||||
}
|
||||
|
||||
public void setSelection(final int selection) {
|
||||
this.selection = selection;
|
||||
}
|
||||
|
||||
public int getNumComponents() {
|
||||
return numComp;
|
||||
}
|
||||
public void setSpectralEnd(final int spectralEnd) {
|
||||
this.spectralEnd = spectralEnd;
|
||||
}
|
||||
|
||||
protected int read(final ImageInputStream data) throws IOException {
|
||||
int count = 0;
|
||||
final int length = data.readUnsignedShort();
|
||||
count += 2;
|
||||
|
||||
numComp = data.readUnsignedByte();
|
||||
count++;
|
||||
|
||||
public int getSelection() {
|
||||
return selection;
|
||||
}
|
||||
components = new ScanComponent[numComp];
|
||||
|
||||
for (int i = 0; i < numComp; i++) {
|
||||
components[i] = new ScanComponent();
|
||||
|
||||
if (count > length) {
|
||||
throw new IOException("ERROR: scan header format error");
|
||||
}
|
||||
|
||||
public int getSpectralEnd() {
|
||||
return spectralEnd;
|
||||
}
|
||||
components[i].setScanCompSel(data.readUnsignedByte());
|
||||
count++;
|
||||
|
||||
final int temp = data.readUnsignedByte();
|
||||
count++;
|
||||
|
||||
components[i].setDcTabSel(temp >> 4);
|
||||
components[i].setAcTabSel(temp & 0x0F);
|
||||
}
|
||||
|
||||
public void setAh(final int ah) {
|
||||
this.ah = ah;
|
||||
}
|
||||
setSelection(data.readUnsignedByte());
|
||||
count++;
|
||||
|
||||
setSpectralEnd(data.readUnsignedByte());
|
||||
count++;
|
||||
|
||||
final int temp = data.readUnsignedByte();
|
||||
setAh(temp >> 4);
|
||||
setAl(temp & 0x0F);
|
||||
count++;
|
||||
|
||||
public void setAl(final int al) {
|
||||
this.al = al;
|
||||
}
|
||||
if (count != length) {
|
||||
throw new IOException("ERROR: scan header format error [count!=Ns]");
|
||||
}
|
||||
|
||||
|
||||
|
||||
public void setSelection(final int selection) {
|
||||
this.selection = selection;
|
||||
}
|
||||
|
||||
|
||||
|
||||
public void setSpectralEnd(final int spectralEnd) {
|
||||
this.spectralEnd = spectralEnd;
|
||||
}
|
||||
|
||||
|
||||
|
||||
protected int read(final DataStream data) throws IOException {
|
||||
int count = 0;
|
||||
final int length = data.get16();
|
||||
count += 2;
|
||||
|
||||
numComp = data.get8();
|
||||
count++;
|
||||
|
||||
components = new ScanComponent[numComp];
|
||||
|
||||
for (int i = 0; i < numComp; i++) {
|
||||
components[i] = new ScanComponent();
|
||||
|
||||
if (count > length) {
|
||||
throw new IOException("ERROR: scan header format error");
|
||||
}
|
||||
|
||||
components[i].setScanCompSel(data.get8());
|
||||
count++;
|
||||
|
||||
final int temp = data.get8();
|
||||
count++;
|
||||
|
||||
components[i].setDcTabSel(temp >> 4);
|
||||
components[i].setAcTabSel(temp & 0x0F);
|
||||
}
|
||||
|
||||
setSelection(data.get8());
|
||||
count++;
|
||||
|
||||
setSpectralEnd(data.get8());
|
||||
count++;
|
||||
|
||||
final int temp = data.get8();
|
||||
setAh(temp >> 4);
|
||||
setAl(temp & 0x0F);
|
||||
count++;
|
||||
|
||||
if (count != length) {
|
||||
throw new IOException("ERROR: scan header format error [count!=Ns]");
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
|
@ -94,7 +94,8 @@ public class JPEGImageReaderTest extends ImageReaderAbstractTest<JPEGImageReader
|
||||
new TestData(getClassLoaderResource("/jpeg/jfif-padded-segments.jpg"), new Dimension(20, 45)),
|
||||
new TestData(getClassLoaderResource("/jpeg/0x00-to-0xFF-between-segments.jpg"), new Dimension(16, 16)),
|
||||
new TestData(getClassLoaderResource("/jpeg/jfif-bogus-empty-jfif-segment.jpg"), new Dimension(942, 714)),
|
||||
new TestData(getClassLoaderResource("/jpeg/jfif-16bit-dqt.jpg"), new Dimension(204, 131))
|
||||
new TestData(getClassLoaderResource("/jpeg/jfif-16bit-dqt.jpg"), new Dimension(204, 131)),
|
||||
new TestData(getClassLoaderResource("/jpeg-lossless/testimgl.jpg"), new Dimension(227, 149))
|
||||
);
|
||||
|
||||
// More test data in specific tests below
|
||||
@ -1175,6 +1176,7 @@ public class JPEGImageReaderTest extends ImageReaderAbstractTest<JPEGImageReader
|
||||
}
|
||||
}
|
||||
catch (IIOException e) {
|
||||
e.printStackTrace();
|
||||
fail(String.format("Reading metadata failed for %s image %s: %s", testData, i, e.getMessage()));
|
||||
}
|
||||
}
|
||||
|
@ -49,6 +49,22 @@ public interface JPEG {
|
||||
/** Define Huffman Tables segment marker (DHT). */
|
||||
int DHT = 0xFFC4;
|
||||
|
||||
/** Comment (COM) */
|
||||
int COM = 0xFFFE;
|
||||
|
||||
/** Define Number of Lines (DNL). */
|
||||
int DNL = 0xFFDC;
|
||||
/** Define Restart Interval (DRI). */
|
||||
int DRI = 0xFFDD;
|
||||
/** Define Hierarchical Progression (DHP). */
|
||||
int DHP = 0xFFDE;
|
||||
/** Expand reference components (EXP). */
|
||||
int EXP = 0xFFDF;
|
||||
/** Temporary use in arithmetic coding (TEM). */
|
||||
int TEM = 0xFF01;
|
||||
/** Define Define Arithmetic Coding conditioning (DAC). */
|
||||
int DAC = 0xFFCC;
|
||||
|
||||
// App segment markers (APPn).
|
||||
int APP0 = 0xFFE0;
|
||||
int APP1 = 0xFFE1;
|
||||
|
@ -43,7 +43,7 @@ import java.util.Arrays;
|
||||
public final class JPEGSegment implements Serializable {
|
||||
final int marker;
|
||||
final byte[] data;
|
||||
final int length;
|
||||
private final int length;
|
||||
|
||||
private transient String id;
|
||||
|
||||
|
Loading…
x
Reference in New Issue
Block a user