Tech Support Pits column from  Dear Webby's Humor Letter
widely read, forwarded, copied and imitated daily since 1994
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DearWebby is actually Helmut Morscher, the CEO of Webby, inc.

Originally the "Tech Support Pits" were reports of the funniest tech support incidents, but over the years the column gradually shifted to answering tech support questions put forward by the readers of the Dear Webby Humor Letter.

This collection of computer and web advice was started partly because readers demanded an archive, and partly because some questions were asked again and again. Each page has a different day's Tech Support Pits column.

Have FUN!
Tech Support Pits column from Dear Webby's Humor Letter of
07/26/05: Sharpening pictures

Tech Support Pits:
From Veronica=== Dear Webby, Why can't a picture that has been sharpened (increase contrast) too much, be restored after saving? I found that if I sharpen a picture and then save it, it often turns blotchy, and softening it does not reverse the previous sharpening. What is the story behind that? By the way, I use Paint Shop Pro. Veronica Dear Veronica Always keep the file format in PSP until all editing is finished, and then finally save a JPG copy. The PSP format stores a reversible history, JPG doesn't. When you increase contrast, you throw away mid tones. Softening creates mid tones by averaging. Those mid tones are not the same as the original ones. When you save a picture as a JPG and use compression, you throw away additional mid tones. You can't get those back either. That is why it is so important to save an original in .psp format. Quite often, instead of sharpening, all you need is clarifying. That reduces fuzziness or mist by throwing away only the lighter mid tones, but leaving the darker ones. Have FUN! Dear Webby
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