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Re-encode jpeg images with no perceivable quality loss.
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smlr * This project is experimental and needs some tuning. * Re-encode jpeg images with no perceivable quality loss. Uses the butteraugli psychovisual comparison and k-ary search to determine the best jpeg quality setting that will not "appear" degraded. Installation: 1. Clone https://github.com/google/butteraugli. 2. Run `make` in the `src/` directory to build the `compare_pngs` binary. 3. Move `compare_pngs` to some folder in your `PATH` 4. `go get github.com/jasonmoo/smlr` Use: smlr -if my_image.jpg -of my_image.best.jpg Flags available: -if string file to process -of string output file -width int width to resize to. omitting either width or height will maintain proportion. -height int height to resize to. omitting either width or height will maintain proportion. -max float maximum deviation detected (default 1.1) -cores int how many cores to use (default runtime.NumCPU()) Inspired by: https://medium.com/@duhroach/reducing-jpg-file-size-e5b27df3257c LICENSE: MIT