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un_pogaz · 06-23-2023, 05:30 AM

I've just discovered an absurdly powerful PNG optimization tool: PNGout (Original page, Linux port)
I clearly don't have the level to implement it inside calibre, but damn it's really powerful, so I'll share the info if you want to use it.

Also, I think you could add an optimize_images command in the "setup.py" that will run PNGout and then OptiPNG on all PNG, so this optimization can be done entirely autonomously, without having to use the ImgBot service.
(note: optimize_images instead a optimize_png because we could extend it later to other images optimization, like SVG... but later... when there's the motivation to it)

06-23-2023, 05:30 AM	#1
un_pogaz Chalut o/ Posts: 486 Karma: 678910 Join Date: Dec 2017 Device: Kobo	PNGout, improve PNG optimization I've just discovered an absurdly powerful PNG optimization tool: PNGout (Original page, Linux port) I clearly don't have the level to implement it inside calibre, but damn it's really powerful, so I'll share the info if you want to use it. Also, I think you could add an optimize_images command in the "setup.py" that will run PNGout and then OptiPNG on all PNG, so this optimization can be done entirely autonomously, without having to use the ImgBot service. (note: optimize_images instead a optimize_png because we could extend it later to other images optimization, like SVG... but later... when there's the motivation to it) Last edited by un_pogaz; 06-23-2023 at 05:42 AM.