GNU/Linux Desktop Survival Guide by Graham Williams |
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ImageMagick |
ImageMagick is an excellent tool for transforming images in a multitude of ways. It is powerful and flexible, although digging into its full potential is not always easy, often requiring some research to explore how to achieve what you need. A recent book by Sohail Salehi helps in this regard--see Section 46.4.
ImageMagick is a command line tool, providing the basic commands: animate, compare, composite, conjure, convert, display, identify, import, mogrify, and montage.