A Nearest Neighboor image resizer for the command line
License: Other
rebooting after a hard, tired month...
I like to write software of questionable utility and varying weirdness.
My current objective is to finish1 some or the projects I already have started.
Thank you to the people, the sponsors, that give me some money every month to keep me motivated (and my VPS online and domains registered)
"finish" to mean get somewhere I am happy with calling version 1; get them to a point i'd be happy to call "done" if i could let things rest ↩
We should even be able to use the same function! It'll be great!
'cause we can't yet divide dependencies, unfortunately, and I don't want to pull in png and gifed for the library
It occurs to us that this would be pretty easy to do without allocating any memory.
Upscale:
Downscale:
We can have the function return a slice to the image data. On upscale it's the entire vec and on downscale it's just the smaller image in the front of the vec. Perhaps if STD is available we can shrink also provide a function that takes ownership of the vec (or just &mut Vec<u8>) and throw away the uneeded data.
Yeah the name stems from "nearest neighbor", but I want bilinear! and bicubic! 'nd fancier things!
We explicitly panic if the color type is not RGBA and that's not very good, now is it. We can support everything quite easily, I think, we just need to pass nearest the colortype so it knows how to copy the data.
I do not like rounding the percent to 2 sigfigs, but I don't think outputting with an appended resolution is very nice when you give a percent.
Using mozjpeg probably as there is no JPEG encoder not in image and for some reason I refuse to use it. Maybe I can do WebP.
Does it give us the palette or do we need to rebuild it? Either way, we have to set a palette when encoding. Like encoder.set_palette(&[u8])
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