RMagick 是一个将 Ruby 语言绑定到 ImageMagickTM?的图像操作库。下面是?ImageMagick 网站对 ImageMagick的描述:
ImageMagickTM... is a free software suite to create, edit, and compose bitmap images. It can read, convert and write images in a large variety of formats. Images can be cropped, colors can be changed, various effects can be applied, images can be rotated and combined, and text, lines, polygons, ellipses and Bézier curves can be added to images and stretched and rotated.
ImageMagick 提供一整套完整的图像处理工具,有一下功能:
http://www.rich-zone.com/rmagick/user-guide/