This weekend I saw an advertisement for a Bell and Howell digital camera with 10 megapixels. The asking price was $200 and I just had to read about it.
The ad said that the 10 megapixels were due to interpolation. I don't know what that means, but I do know a 'buyer beware' when I see one. Sounds like the 10 MP's were really something else.
Holly
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Holly, I looked the word up on dictionary.reference.com/
Interpolation is basically a way to guesstimate the value of something, based on what is around it. In the case of digital camera images, the camera actually sees and remembers a "holey" image, and then fills in the holes based on the colors around the holes. As a very simple example, say you have a hole, with a white pixel on one side and a red pixel on the other side. The camera's processor would fill in the gap with pink.
What you end up with is a 10MP picture, but only a certain number of those pixels are originals that the camera actually saw. The others are the filled-in holes. For the best quality image, the greater the percentage of "original" pixels, the better.
How do you figure how many non-interpolated pixels it really has?
I found two resources...I did a search at google.com
Interpolated - Software programs can enlarge image resolution beyond the actual resolution by adding extra pixels using complex mathematic calculations.
THe second resource is here:
www.directsoftware.biz/
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