GET GIMPD Open source image editing Eric J. Gruber

What is GIMP?

• G NU I mage M anipulation P rogram.

• 100% free, both in cost and in the right to alter and use the software.

• Can be used as a paint program, for photo retouching, as a batch processing system, a mass production image renderer, an image format converter, and more!

• GIMP is designed to be augmented with plug-ins and extensions.

GIMP vs. Photoshop

• Cost:

• • GIMP: $0

• • Photoshop: $699 (CS5); $999 (CS5 Extended)

• Size:

• • GIMP: 17.39 megabytes

• • Photoshop: 1 gigabyte available hard-disk space for installation; additional free space required during installation

Where to get GIMP

• Windows installer:

• • http://gimp-win.sourceforge.net/stable.html

• Apple installer:

• • http://www.gimp.org/macintosh/

• Unix/Linux installer:

• • http://www.gimp.org/unix/

GIMP vs. Photoshop

• Both programs provide a strong set of basic photo editing commands and tools: 1)Ability to open/import most of the basic bitmap graphic filetypes including PNG, JPG, GIF; 2)Ability to adjust those images with crop, rotate, resize and many other transformations; 3)Ability to make local retouches, sharpening and other image corrections; 4)Do color and exposure/lightness corrections with a broad range of dialogs and tools;

GIMP vs. Photoshop

• Both programs provide a strong set of basic photo editing commands and tools: 5)Mask selective areas on an image(or layer)- only there will edits/brushstrokes apply; 6)Allow creating a stack of two or dozens of layers from other images, text, vector graphics, etc; 7)Allow filters or special effects to be applied to one or more layers including the base image; 8)Produce output to several graphic filetypes, printers, and/or web pages/galleries.

Comparing GIMP with Photoshop GIMP Photoshop Crop Tool Image Resize Image>Image Resize Image>Image Size Image Sharpen Filters>Enhance>(options) Filter>Sharpen>(options)

Comparing GIMP with Photoshop GIMP Photoshop Levels Colors>Levels Image>Adjustments>Levels

Comparing GIMP with Photoshop GIMP Photoshop Curves Colors>Curves Image>Adjustments>Curves

Demonstration

Further reading

• Tutorials: for Beginner, Intermediate and Expert users: http://www.gimp.org/tutorials

• • See also:

• • • http://gimp-tutorials.net

• • • http://www.noupe.com/gimp/30-exceptional-gimp-tutorials-and-resources.html

• Whats new: Versions 2.7s features, which make it still competitive with Photoshop: http://www.inatux.com/article?r=development-gimp-version-2.7-review

Questions?