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Old 04-25-2021, 09:03 PM   #1
ownedbycats
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Decreased saturation on image only in ebook-viewer
For some reason, on this specific eBook I'm having trouble with the cover rendering with decreased saturation in ebook-viewer and ebook-editor's preview pane. I'm not sure why.

The zip file contains:
ePub
the cover (both the original png and the converted jpg)
Two screenshots demonstrating the issue

Any idea what's going on?
Attached Files
File Type: zip Strange Cover Rendering.zip (2.53 MB, 148 views)
Last edited by ownedbycats; 04-26-2021 at 06:37 PM.
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Old 04-25-2021, 10:41 PM   #2
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most likely color profile issues. make sure the embedded color profile is the standard srgb one. The viewer and editor use the chrome browser for rendering.
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Old 04-25-2021, 11:40 PM   #3
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I put the original PNG file through http://exif.regex.info/exif.cgi and got this:

Quote:
WARNING: No color-space metadata and no embedded color profile: Windows and Mac web browsers treat colors randomly.
I didn't even know that was possible

Then putting cover.jpg in gave me:

Quote:
WARNING: Embedded color profile: “(unknown embedded color profile)”
good news: I was able to fix the original PNG file!
Last edited by ownedbycats; 04-25-2021 at 11:44 PM.
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