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frostschutz · 10-13-2017, 08:53 AM

ImageMagick is a swiss army knife for batch processing images. ( http://www.imagemagick.org/script/index.php )

If you have a manga and it has - white borders, bad contrast, full color pages, wrong resolution, etc. - you could use ImageMagick (or anything else) on the PC to convert all these images into something that would look better on an ebook reader.

(Trim borders, improve contrast, convert color to 16 level grayscale that the eink screen can display, remove background noise, ...)

It's not something you install on the Kobo itself (imagemagick is slow even on a PC)

Also it's not a 1 click solution either, ImageMagick is a tool you have to learn how to use and how to achieve the desired effect.

10-13-2017, 08:53 AM	#2
frostschutz Linux User Posts: 2,282 Karma: 6123806 Join Date: Sep 2010 Location: Heidelberg, Germany Device: none	ImageMagick is a swiss army knife for batch processing images. ( http://www.imagemagick.org/script/index.php ) If you have a manga and it has - white borders, bad contrast, full color pages, wrong resolution, etc. - you could use ImageMagick (or anything else) on the PC to convert all these images into something that would look better on an ebook reader. (Trim borders, improve contrast, convert color to 16 level grayscale that the eink screen can display, remove background noise, ...) It's not something you install on the Kobo itself (imagemagick is slow even on a PC) Also it's not a 1 click solution either, ImageMagick is a tool you have to learn how to use and how to achieve the desired effect.