MobileRead Forums - View Single Post - [ENHANCEMENT] Reducing book size through image scaling

xdgc · 08-06-2019, 03:55 PM

Space is at premium on my 4GB Paperwhite. A number of my books have glorious big full color photos that I can't make use of on a 1448x1072 B&W screen, so I wrote a program to resample these to fit on screen in grayscale. I save as much as 80%-85% of book size this way.

I wanted to integrate this into Calibre. At first I tried making a separate plugin, but in the end I felt it fit much better as an addition to Polish. I have a patch that implements this "kindlify" mode as an alternative to Polish's stock image recompression.

What is the correct procedure to submit this for review upstream? The various web pages and posts here are unclear on the subject of how to submit ready-for-review updates to core Calibre, and the launchpad tracker doesn't seem like the right place to send git branches. Github PR?

08-06-2019, 03:55 PM	#1
xdgc Junior Member Posts: 7 Karma: 10 Join Date: Aug 2019 Device: Kindle DX, Kindle PW, Nook Tab, Nook Glow, reMarkable 2, Kobo Clara BW	[ENHANCEMENT] Reducing book size through image scaling Space is at premium on my 4GB Paperwhite. A number of my books have glorious big full color photos that I can't make use of on a 1448x1072 B&W screen, so I wrote a program to resample these to fit on screen in grayscale. I save as much as 80%-85% of book size this way. I wanted to integrate this into Calibre. At first I tried making a separate plugin, but in the end I felt it fit much better as an addition to Polish. I have a patch that implements this "kindlify" mode as an alternative to Polish's stock image recompression. What is the correct procedure to submit this for review upstream? The various web pages and posts here are unclear on the subject of how to submit ready-for-review updates to core Calibre, and the launchpad tracker doesn't seem like the right place to send git branches. Github PR?