Tilman Hausherr created PDFBOX-1993:
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Summary: Gray color images much lighter
Key: PDFBOX-1993
URL: https://issues.apache.org/jira/browse/PDFBOX-1993
Project: PDFBox
Issue Type: Bug
Components: Rendering
Affects Versions: 2.0.0
Reporter: Tilman Hausherr
Priority: Minor
Attachments: gray-bad.png, gray-cow-bad.png, gray-cow-good.png,
gray-good.png
In testCreateLosslessFromImageRGB() I create a grayscale image, and in
LosslessFactory.createFromImage() I save it as a grayscale image (that part is
currently disabled, search and enable the part with
BufferedImage.TYPE_BYTE_GRAY. When this is enabled,
testCreateLosslessFromImageRGB() fails the identity test. The expected and the
actual images are attached. I traced this effect to
PDColorSpace.toRGBImageAWT(), where I saved the "src" and the "dest" image and
got two different ones. But even the first one is already different to the
grayscale image I created in the test.
The two attached file pairs were created by writing the BufferedImage src and
dst in PDColorSpace.toRGBImageAWT().
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