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mandy314 · 03-12-2014, 01:39 PM

@NiLuJe
I'm still looking for "kerning" and did some testing with various ebook reading apps: calibre, coolreader, fbreader (windows versions). Looking at the sources I hope to learn more about ebook rendering - Python, Lua etc are well out of my comfort zone though.

Yesterday I installed KoReader on my PW1 (btw no kerning with this one as with the above mentioned).
With KoReader the fonts look at first very bad: afaik KoReader uses the system fontconfig chain and I have all goodies (subpixel, autohint, hinting) disabled. After removing alternate.conf the fonts were ok in KoReader.
But there is a difference between the Amazon-default rendering and the rendering with the hinting disabled: some glyphs (w,o) are wider and the letter spacing seems more balanced, at least to my eyes there isn't a great difference concerning the crispness.

So: with the Amazon reader I get "good" font rendering even "without hinting" whereas with KoReader this gives "bad" rendering. Perhaps there is some fallback for the Amazon kf8-reader ...

edit: added 2 screenies (left: Amazon-default / right: "no hinting conf" / stock Palatino fontsize 3)

03-12-2014, 01:39 PM	#34
mandy314 Connoisseur Posts: 71 Karma: 200092 Join Date: Mar 2014 Device: kindle pw1	@NiLuJe I'm still looking for "kerning" and did some testing with various ebook reading apps: calibre, coolreader, fbreader (windows versions). Looking at the sources I hope to learn more about ebook rendering - Python, Lua etc are well out of my comfort zone though. Yesterday I installed KoReader on my PW1 (btw no kerning with this one as with the above mentioned). With KoReader the fonts look at first very bad: afaik KoReader uses the system fontconfig chain and I have all goodies (subpixel, autohint, hinting) disabled. After removing alternate.conf the fonts were ok in KoReader. But there is a difference between the Amazon-default rendering and the rendering with the hinting disabled: some glyphs (w,o) are wider and the letter spacing seems more balanced, at least to my eyes there isn't a great difference concerning the crispness. So: with the Amazon reader I get "good" font rendering even "without hinting" whereas with KoReader this gives "bad" rendering. Perhaps there is some fallback for the Amazon kf8-reader ... edit: added 2 screenies (left: Amazon-default / right: "no hinting conf" / stock Palatino fontsize 3) Attached Thumbnails Last edited by mandy314; 03-12-2014 at 02:11 PM.