Image editing in Ubuntu

GIMP is an alternative to photoshop (not completely but to a large extent).
  GIMP is the GNU Image Manipulation Program. It  is  used  to  edit  and manipulate  images. It can load and save a variety of image formats and can be used to convert between formats.
GIMP can also be used as a paint program. It features a set of  drawing and  painting  tools  such as airbrush, clone, pencil, and paint brush.
       Painting and drawing tools can be applied to an image with a variety of paint modes.  It also offers an extensive array of selection tools like rectangle, ellipse, fuzzy select, bezier select, intelligent  scissors, and select by color.

       GIMP  offers  a  variety  of  plug-ins  that perform a variety of image
       manipulations.  Examples include bumpmap, edge detect,  gaussian  blur,
       and  many  others.  In  addition,  GIMP has several scripting extension
       which allow for advanced non-interactive  processing  and  creation  of
       images.
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 tab key will toggle them hidden.
GIMP features a great fullscreen mode allowing you to not only preview your artwork but also do editing work while using the most of your screen estate.

Numerous digital photo imperfections can be easily compensated for using GIMP. Fix perspective distortion caused by lens tilt simply choosing the corrective mode in the transform tools. Eliminate lens' barrel distortion and vignetting with a powerful filter but a simple interface.
 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.

GIMP includes a very unique support for various input devices out of the box. Pressure and tilt sensitive tablets, but also a wide range of USB or MIDI controllers. You can bind often-used actions to device events such as rotating a USB wheel or moving a MIDI controller's slider. Change the size, angle or opacity of a brush while you paint, bind your favorite scripts to buttons. Speed up your workflow!

Supported Platforms

  • GNU/Linux (i386, PPC)
  • Microsoft Windows (XP, Vista)
  • Mac OS X
  • Sun OpenSolaris
  • FreeBSD
To install it in Ubuntu from a terminal type:
sudo apt-get install gimp  

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