Merge pull request #255 from Schmidor/ccitt_getnextchangingelement

Fix getNextChangingElement
This commit is contained in:
Harald Kuhr 2016-05-25 09:37:51 +02:00
commit 3d36159982
3 changed files with 6 additions and 1 deletions

View File

@ -221,7 +221,11 @@ final class CCITTFaxDecoderStream extends FilterInputStream {
}
private int getNextChangingElement(final int a0, final boolean white) throws IOException {
int start = (lastChangingElement & 0xFFFF_FFFC) + (white ? 0 : 1);
int start = (lastChangingElement & 0xFFFF_FFFE) + (white ? 0 : 1);
if (start > 2) {
start -= 2;
}
if (a0 == 0) {
return start;
}

View File

@ -97,6 +97,7 @@ public class TIFFImageReaderTest extends ImageReaderAbstractTest<TIFFImageReader
new TestData(getClassLoaderResource("/tiff/ccitt/group4.tif"), new Dimension(6, 4)), // B/W, CCITT T6 1D
new TestData(getClassLoaderResource("/tiff/ccitt_tolessrows.tif"), new Dimension(6, 6)), // CCITT, metadata claiming 6 rows, stream contains only 4
new TestData(getClassLoaderResource("/tiff/fivepages-scan-causingerrors.tif"), new Dimension(2480, 3518)), // B/W, CCITT T4
new TestData(getClassLoaderResource("/tiff/CCITTgetNextChangingElement.tif"), new Dimension(2402,195)),
// CIELab
new TestData(getClassLoaderResource("/tiff/ColorCheckerCalculator.tif"), new Dimension(798, 546)), // CIELab 8 bit/sample
// Gray