cjpeg-dssim
Introduction
Automatically find the ideal JPEG quality setting for a JPEG image by calculating the output images dissimilarity from the input JPEG. This frees us from having to rely on the unstandardized quality integer.
Installation instructions
Place this script anywhere in your $PATH. Requires Bash >= 4.x
Required tools
- ImageMagick >= v.6
- dssim - https://github.com/pornel/dssim
- jpegoptim - https://github.com/tjko/jpegoptim
- mozjpeg - https://github.com/mozilla/mozjpeg
CLI usage example
cjpeg-dssim jpegoptim /path/to/input-image.jpg
Supported encoders:
- jpegoptim
- mozjpeg