MobileRead Forums - Decreased saturation on image only in ebook-viewer

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ownedbycats

04-25-2021 10:03 PM

Decreased saturation on image only in ebook-viewer

1 Attachment(s)

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?

kovidgoyal

04-25-2021 11:41 PM

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.

ownedbycats

04-26-2021 12:40 AM

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!

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