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Show HN: Using 2D DFT, dithering, etc. to maximize eInk manga image quality
Kindle Comic Converter optimizes black & white (or color) comics and manga for E-ink ereaders like Kindle, Kobo, ReMarkable, and more. Pages display in fullscreen without margins, with proper fixed layout support. Output works great in KOReader. Full details on what KCC does is in the readme with plenty of photos! KCC has been under continuous development since 2012 and has code sign on both Windows and macOS. Also available on Linux. -the current kcc dev
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KCC best features: 1) filesize optimization. Think 600 to 100 mb after optimization per volume depending on source and settings. Does it by downscaling and dithering from 256 to 16 shades of gray (e.g. 8 bit to 4 bit) 2) black level correction. You need pure blacks in eink. Dark gray looks ok on paper and normal screens but not eink. Does it with histogram manipulation 3) semi automatic 2 page spread joining. spreads can be autorotated or not. 4) rainbow removal on kaleido 3 color eink with 2D discrete Fourier transform
Comic books and manga are amusingly amount the least digitizable mediums as you have the choice of good resolution but an unpleasant reading experience with lit screens on a desktop, laptop, tablet or phone and low res or lack of spreads on an e reader. Even more so when you're missing out on colour.
Hi, Could this have been a KOReader plugin too where all this processing etc is done on KOReader/Kindle itself instead of another machine?
I read a lot of manga and comic since my childhood but never even once in my life I have able to enjoy manga on tablet/mobile as much as I enjoy them as physical volume. But looking forward to use Kindle Comic Converter
Comments on a previous ShowHN, https://news.ycombinator.com/item?id=43916956