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You will need to download and install the Adobe Acrobat Reader in order to read the handouts.You can download it free from Adobe
A Digital Imaging Primer (6.8 MB) Revised and greatly expanded 50 page booklet done in 2003. Includes basic concepts, determining resolution, scanning, file formats. For a list of topics, check out the table of contents (76K) You can purchase a printed copy on line for $6.76 at lulu.com.
Optimizing your images with Pixlr's on-line photo editor. (PDF, 1.7MB) Many functions only found in Photoshop are now available in a free, on-line image editor
Dealing with halftones (132K) A handout in Adobe Acrobat (.pdf) format.How to eliminate the moire pattern that sometimes results when scanning images from books and magazines.
How printed image quality changes with resolution.(1.4MB) A handout in Adobe Acrobat format. Since this deals with print quality, you almost have to print it to see what I'm talking about.
Image resolution in Powerpoint. (180K) A PowerPoint file with some examples of how resolution affects image quality in PowerPoint.
Irfanview is a great freeware image editor for Windows.
You will need to download and install the Adobe Acrobat Reader in order to read these.You can download it free from Adobe.