gimp — stdin stdout - file -- opt --help --version
The GIMP (GNU Image Manipulation Program) is a full-featured image-editing package that rivals Adobe Photoshop in power and scope. It is fairly complex to use, but the results can be stunning. Visit http://www.gimp.org for full information. To run the program, type:
To edit a particular file, type:
$ xv myfile.jpg
Click the right mouse button anywhere on the image to reveal the menu of editing tools.