Image::ExifTool::JPEGDigest3pm
Calculate jpegdigest and jpegqualityestimate
Usage
This module is used by Image::ExifTool
Overview
This module contains a lookup for values of the JPEG DQT digest, allowing some image identification from JPEG data alone. It also calculates an estimated JPEG quality if requested.
References
- <https://github.com/ImageMagick/ImageMagick/blob/master/coders/jpeg.c>
Acknowledgements
Thanks to Jens Duttke for most of the work that went into this module, and to Franz Buchinger for the values he added.
Releases
9 releases since Debian 6.0 (Squeeze); the text changed 8 times.