Johan van der Knijff bitsgalore
eddy-geek
/ jpg_quality_pil_magick.py
Created
January 22, 2023 21:20
https://stackoverflow.com/questions/4354543/determining-jpg-quality-in-python-pil
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| def get_jpg_quality(pim: 'PIL.Image.Image') -> int: | |
| """ | |
| Implement quality computation following ImageMagick heuristic algorithm: | |
| https://github.com/ImageMagick/ImageMagick/blob/7.1.0-57/coders/jpeg.c#L782 | |
| Usage: | |
| ``` | |
| pim = Img.open(...) | |
| quality = get_jpg_quality(pim) | |
| ``` | |
| See also https://stackoverflow.com/questions/4354543/ |