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TMI-TIFF: Better ICC profile support + more BitsPerSample configurations.

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Harald Kuhr
2015-08-26 10:33:01 +02:00
parent d4e34d6109
commit 2bdfa4fccb
4 changed files with 14 additions and 4 deletions
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imageio/imageio-tiff/src/main/java/com/twelvemonkeys/imageio/plugins/tiff/TIFFImageReader.java
+12 -4
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@@ -435,6 +435,11 @@ public class TIFFImageReader extends ImageReaderBase {
return ImageTypeSpecifiers.createBanded(cs, new int[] {0, 1, 2, 3}, new int[] {0, 0, 0, 0}, dataType, true, extraSamples[0] == 1);
}
}
else if (bitsPerSample == 4) {
long[] extraSamples = getValueAsLongArray(TIFF.TAG_EXTRA_SAMPLES, "ExtraSamples", true);
return ImageTypeSpecifier.createPacked(cs, 0xF000, 0xF00, 0xF0, 0xF, DataBuffer.TYPE_USHORT, extraSamples[0] == 1);
}
// TODO: More samples might be ok, if multiple alpha or unknown samples
default:
throw new IIOException(String.format("Unsupported SamplesPerPixels/BitsPerSample combination for RGB TIFF (expected 3/8, 4/8, 3/16 or 4/16): %d/%d", samplesPerPixel, bitsPerSample));
@@ -714,7 +719,8 @@ public class TIFFImageReader extends ImageReaderBase {
int tilesAcross = (width + stripTileWidth - 1) / stripTileWidth;
int tilesDown = (height + stripTileHeight - 1) / stripTileHeight;
WritableRaster rowRaster = rawType.getColorModel().createCompatibleWritableRaster(stripTileWidth, 1);
// WritableRaster rowRaster = rawType.getColorModel().createCompatibleWritableRaster(stripTileWidth, 1);
WritableRaster rowRaster = rawType.createBufferedImage(stripTileWidth, 1).getRaster();
Rectangle clip = new Rectangle(srcRegion);
int row = 0;
@@ -1563,17 +1569,19 @@ public class TIFFImageReader extends ImageReaderBase {
return value;
}
private ICC_Profile getICCProfile() {
private ICC_Profile getICCProfile() throws IOException {
Entry entry = currentIFD.getEntryById(TIFF.TAG_ICC_PROFILE);
if (entry != null) {
byte[] value = (byte[]) entry.getValue();
ICC_Profile profile = ICC_Profile.getInstance(value);
try {
// WEIRDNESS: Reading profile from InputStream is somehow more compatible
// than reading from byte array (chops off extra bytes + validates profile).
ICC_Profile profile = ICC_Profile.getInstance(new ByteArrayInputStream(value));
return ColorSpaces.validateProfile(profile);
}
catch (CMMException ignore) {
catch (CMMException | IllegalArgumentException ignore) {
processWarningOccurred("Ignoring broken/incompatible ICC profile: " + ignore.getMessage());
}
}