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From "Stefan Hegny (JIRA)" <j...@apache.org>
Subject [jira] [Created] (XGC-118) Grayscale BMPs look brigther than non-grayscale
Date Sun, 17 Mar 2019 12:11:00 GMT
Stefan Hegny created XGC-118:

             Summary: Grayscale BMPs look brigther than non-grayscale
                 Key: XGC-118
                 URL: https://issues.apache.org/jira/browse/XGC-118
             Project: XMLGraphicsCommons
          Issue Type: Bug
          Components: image codecs
    Affects Versions: 2.3
            Reporter: Stefan Hegny
         Attachments: samp.fo, thisdoesnotwork.bmp, thisworks.bmp

Using FOP to embed BMP images into a PDF. The BMP Images have a strict linear grayscale palette
and look "brigher" in the pdf than when viewed with any other viewer/browser. Changing just
a few bits in the palette (not visibly, compare the two attached bmps) makes the image appear
in the same (darker) way as displayed in all other programmes. Similar issue was reported
on the Mailing list for PNGs 10 yrs ago (https://mail-archives.apache.org/mod_mbox/xmlgraphics-batik-users/200906.mbox/%3c2a1ddf8a0906090400s1c5d1461pb1a46d424c679353@mail.gmail.com%3e)

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