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Disable clamping when reading raw tiff data

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Bertil Chapuis 2023-12-19 15:25:38 +01:00 committed by Harald Kuhr
parent 9c2d3058fd
commit 1226375ba6
1 changed files with 12 additions and 6 deletions
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16
imageio/imageio-tiff/src/main/java/com/twelvemonkeys/imageio/plugins/tiff/TIFFImageReader.java
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@ -930,6 +930,10 @@ public final class TIFFImageReader extends ImageReaderBase {
@Override
public BufferedImage read(int imageIndex, ImageReadParam param) throws IOException {
return read(imageIndex, param, true);
}
private BufferedImage read(int imageIndex, ImageReadParam param, boolean clamped) throws IOException {
readIFD(imageIndex);
int width = getWidth(imageIndex);
@ -1144,7 +1148,7 @@ public final class TIFFImageReader extends ImageReaderBase {
}
// Read a full strip/tile
readStripTileData(clippedRow, srcRegion, xSub, ySub, b, samplesInTile, interpretation, destRaster, col, srcRow, colsInTile, rowsInTile, input);
readStripTileData(clippedRow, srcRegion, xSub, ySub, b, samplesInTile, interpretation, destRaster, col, srcRow, colsInTile, rowsInTile, input, clamped);
}
}
@ -1920,7 +1924,7 @@ public final class TIFFImageReader extends ImageReaderBase {
private void readStripTileData(final Raster tileRowRaster, final Rectangle srcRegion, final int xSub, final int ySub,
final int band, final int numBands, final int interpretation,
final WritableRaster raster, final int startCol, final int startRow,
final int colsInTile, final int rowsInTile, final ImageInputStream input)
final int colsInTile, final int rowsInTile, final ImageInputStream input, final boolean clamped)
throws IOException {
DataBuffer dataBuffer = tileRowRaster.getDataBuffer();
@ -2043,7 +2047,7 @@ public final class TIFFImageReader extends ImageReaderBase {
}
if (row >= srcRegion.y) {
normalizeColor(interpretation, numBands, rowDataFloat);
normalizeColor(interpretation, numBands, rowDataFloat, clamped);
// Subsample horizontal
if (xSub != 1) {
@ -2353,9 +2357,11 @@ public final class TIFFImageReader extends ImageReaderBase {
}
}
private void normalizeColor(int photometricInterpretation, @SuppressWarnings("unused") int numBands, float[] data) {
private void normalizeColor(int photometricInterpretation, @SuppressWarnings("unused") int numBands, float[] data, boolean clamped) {
// TODO: Allow param to decide tone mapping strategy, like in the HDRImageReader
if (clamped) {
clamp(data);
}
switch (photometricInterpretation) {
case TIFFBaseline.PHOTOMETRIC_WHITE_IS_ZERO:
@ -2605,7 +2611,7 @@ public final class TIFFImageReader extends ImageReaderBase {
@Override
public Raster readRaster(int imageIndex, ImageReadParam param) throws IOException {
return read(imageIndex, param).getData();
return read(imageIndex, param, false).getData();
}
/// Tiling support