Thread: Do you always use the provided book cover?
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Old 12-11-2022, 09:30 AM   #28
Quoth
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Quote:
Originally Posted by hobnail View Post
I would if there was free software that I could use to convert a color cover into one that is 16 levels of gray and the software understood the colors so that it could increase the contrast where it looks decent in color but not in grayscale.

So many books have nice color covers when I look at them in calibre on my pc and then on my Kobo I can barely make out the details.
Free and/or Open Source
IrfranView on Windows is simple.
More powerful is the GIMP, so takes longer to use (many platforms)
ImageMagick: Command line and can do stuff with motion pngs, PDFs and conversion, not just contrast, brightness, colour to mono and bit depth.
Last edited by Quoth; 12-11-2022 at 09:47 AM. Reason: typo
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