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05-09-2012, 08:46 PM   #1
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Pixel mapping?

Can someone explain what pixel mapping is? Please explain it in simple, layman's terms. Analogies work great for my simple mind. I'm not very computer literate and....well....er....um....I did a Google search and the explanation I got was akin to telling me how to perform brain surgery!

Thanks for the help.

Dewman

05-09-2012, 08:54 PM   #2
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Pixel mapping figures out which pixels are busted, and corrects their color values whenever a photo is taken with the goal of automatically eliminating hot or dead pixels.

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05-10-2012, 08:50 AM   #3
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So....would I be correct in assuming ons should run "pixel mapping" AFTER a photo has been shot so as to correct any "misbehaving " pixels?

Last night, I printed off the rather extensive owners manual for my little Olympus VR digital and it too has a pixel mapping option.

Also, what would be considered the minimum MP for a DSLR? I see them anywhere from 10-48. I would imagine more is better, eh? Makes sense. My small Olympus has 14 MP and that seems to be more than enough.

Thanks for the answer. I'm getting a real education from youz guys.
Dewman
05-10-2012, 08:59 AM   #4
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QuoteOriginally posted by Dewman Quote
So....would I be correct in assuming ons should run "pixel mapping" AFTER a photo has been shot so as to correct any "misbehaving " pixels?
It should be run before you take pictures. The camera needs to know if any pixels are bad, it then automatically corrects for them. It's only really necessary if you notice bad spots in your photos. It will not correct for dust on the sensor, which is a common problem with interchangeable lens cameras.

As far as minimum MP, many people are perfectly happy with 6.1MP cameras from around 2004-2005. I was happy for several years with the 12MP K-x, but now that I have the 16MP K-5 I would find it very hard to go back. The more MP you have the easier it is to crop more out of the shot and still get good prints, if that is what you are after.

05-10-2012, 10:18 AM   #5
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Pixel mapping Is not something you run on a pcite; it is something you run on the camera. If a picture already has dead or stuck pixels, you're stuck with the , although of course you can always go into your favorite PP program and try to remove them if they are bad enough to be moticeable in the print size you are actually making. Definitely not worth the trouble if you need to blow the image up to 100% just to see them, though.
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