1. What is image processing? Skills: choosing an image processing program IT concepts: historical context for image processing, image processing programs, image processing operations This work is licensed under a Creative Commons Attribution-Noncommercial- Share Alike 3.0 License.

2. Where does this topic fit? Internet concepts –Applications –Technology –Implications Internet skills –Application development –Content creation (images)

3. Let’s begin with a question: What data type did the first computers work with?

4. When each data type went mainstream DecadeData Type 1950sNumeric 1960sAlphanumeric 1970sText 1980sImages 1990sMusic, speech 2000sLow-quality video 2010sHigh-quality video

5. Image processing in 1964 Ivan Sutherland operating Sketchpad, an early example of interactive, personal computing with a graphical user interface. But, it ran on a multimillion dollar computer.

6. Alan Kay shows a video of Sketchpad http://www.youtube.com/watch?v=mOZqRJzE8xg&feature=related

7. Subtle retouching of a photo 1.Crow's feet made softer 2.Whites of her eyes brightened 3.Flyaway strands hairs on the top of her head removed 4.Teeth slightly whitened 5.Skin smoothed out and given a soft glow 6.Blemish removed from her collarbone 7.Lines around her neck softened and the carotid artery in her neck erased

8. Not so subtle From worth1000.com

9. Abraham Lincoln’s head on John Calhoun’s body You don’t need a computer, but it makes it a lot easier.

10. Word and image processing operations Select text Cut text Copy text Move text Delete text Change fonts Change text size Change text color Change footnote style Check spelling Compress a text file Etc. etc. Select a portion of the image Crop an image Copy a portion of an image Move a portion of an image Delete a portion of an image Resize an image Rotate an image Change image brightness Change image contrast Change colors Compress an image file Etc. etc. Text dataImage data Can you think of other word and image processing operations?

11. Popular programs Microsoft Word (proprietary, desktop) Open Office (open source, desktop) Google Docs (network) Adobe photoshop (proprietary, desktop) Paint.net (open source, desktop) Photoshop.com (network) There are many other image processing programs, and they are often included with cameras. Word processingImage processing

12. Which image processor should you use? Photoshop – used by most professional photographers and designers Paint.net – open source with many features – fine for this class and most work Gimp – open source program with the features of Photoshop Network image processors – not ready for prime time, but keep watching Any other that you have already and are familiar with To get these and others, see the resources section at: http://bpastudio.csudh.edu/fac/lpress/netapps/image/

13. Processing different file types Nearly every image processing program can handle the common image file types. You can use your image processing program to convert from one type to another. See this article or Wikipedia for more information.this article

14. What is image processing? Skills: choosing an image processing program IT concepts: historical context of image processing, image processing programs, image processing operations This work is licensed under a Creative Commons Attribution-Noncommercial- Share Alike 3.0 License.