Source: diffoscope Severity: wishlist Dear Maintainer,
1. compare image metadata (EXIF / XMP / size / etc..) for various images
formats, can be done with following tools:
exiftool - http://www.sno.phy.queensu.ca/~phil/exiftool/ -
https://packages.debian.org/sid/libimage-exiftool-perl
exiv2 - http://www.exiv2.org/ -
https://packages.debian.org/unstable/exiv2
ImageMagick identify - https://www.imagemagick.org/script/identify.php
- https://packages.debian.org/sid/imagemagick (by using -verbose option)
2. visual compare images in HTML output
images can be shown using data URI:
https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs
The below tools can be used to detect difference in images:
Resemble.js - https://github.com/Huddle/Resemble.js/
PerceptualDiff - https://packages.debian.org/sid/perceptualdiff
ImageMagick - https://www.imagemagick.org/Usage/compare/ -
https://packages.debian.org/sid/imagemagick
image-diff - https://github.com/uber/image-diff

