15.3. Manipulating Image Data with RMagick
In the last fifteen years, we have been bombarded with more and more graphical information. Computers have now surpassed television sets as the primary supplier of “eye candy” in all its forms. This means that programmers need ways of manipulating all kinds of image data in multiple conflicting formats. In Ruby, the best way to do this is with RMagick, a library created by Tim Hunter.
RMagick is a Ruby binding for the ImageMagick library (or its branch, GraphicsMagick). RMagick is installable as a gem, but to use RMagick, you must have one of these libraries (IM or GM) installed first. If you are on Linux, you probably already have one or the other; if not, you can go to http://imagemagick.org (or
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