Gimp

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GIMP is the GNU Image Manipulation Program. GIMP is a freely distributed piece of software for such tasks as photo retouching, image composition and image authoring. GIMP works on many operating systems, in many languages.

Features:

• Customizable Interface:
  Each task requires a different environment and GIMP allows you to customize the view and behavior the way you like it. Starting from the widget theme, allowing you to change colors, widget spacings and icon sizes to custom tool sets in the toolbox. The interface is modulized into so called docks, allowing you to stack them into tabs or keep them open in their own window. Pressing the tabkey will toggle them hidden. GIMP features a great fullscreen modeallowing you to not only preview your artwork but also do editing work while using the most of your screen estate. Photo Enhancement Numerous digital photo imperfections can be easily compensated for using GIMP. Fix perspective distortion caused by lens tilt simply choosing the corrective modein the transform tools. Eliminate lens' barrel distortion and vignettingwith a powerful filter but a simple interface. The included channel mixergives you the flexibility and power to get your B/W photography stand out the way you need.


• Digital Retouching:
  GIMP is ideal for advanced photo retouching techniques. Get rid of unneeded details using the clone tool, or touch up minor details easily with the new healing tool. With the perspective clone tool, it's not difficult to clone objects with perspective in mind just as easily as with the orthogonal clone.