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Chapter 21. Retouching and Restoration Basics > Removing Dust and Scratches

Removing Dust and Scratches

One consequence of scanning images is that unless you live or work in one of those clean rooms they use when making microchips or perhaps the completely sterile medical laboratory from The Andromeda Strain, you will invariably scan dust along with an image. Even the most meticulous scrubbing of the scanbed (with a non-abrasive cloth, of course) right before scanning doesn't completely get rid of all the filth. Figure 21.15 is an exaggeration—anyone whose scanner bed is this filthy would be better off cleaning it and rescanning—but it illustrates the basic problem.

Figure 21.15. In the dark portions of the image, you can see a lot of dust, filth, and other random detritus.



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