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Anonymous
Random question. What is an interpalated image?
>> Anonymous
I'm not going to explain this well, so..

9,000 hours in google revealed:

http://www.cambridgeincolour.com/tutorials/image-interpolation.htm
>> Anonymous
Thanks...
>> Anonymous
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>>177383
Dude, that shit is confusing. Just link to the wiki article on it. Picture related.
http://en.wikipedia.org/wiki/Interpolation
>> ??????????????????????????Anonymous???????????
so when you turn your 3MP image into a 10MP one, are you interpolating or extrapolating?
>> Anonymous
>>177386

simple piece-wise function.

get back to failing high school math
>> Anonymous
>>177393

Interpolating. The software basically uses an algorithm to stretch the image's existing pixels out huge, and then fills in the gaps by interpolating between pixels. Extrapolating would (theoretically) mean having software that would use the data in the image to predict what was outside the frame - sort of like an inverse crop. For obvious reasons, extrapolation software does not exist.
>> Anonymous
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>>177433
Actually, it sort of does exist. Open an image in photoshop and open up lens correction. Rotate it or distort it anyway then select "edge extension" at the bottom. It just stretches whatever pixels are on the edge. Of course it's really bad in the left example but it's effective for small adjustments or photos with clear edges like the sky in the right example.

Camera-Specific Properties:Equipment MakeNIKONCamera ModelCOOLPIX L1Camera SoftwareAdobe Photoshop CS3 WindowsFocal Length (35mm Equiv)96 mmMaximum Lens Aperturef/2.8Image-Specific Properties:Image OrientationTop, Left-HandHorizontal Resolution300 dpiVertical Resolution300 dpiImage Created2008:05:08 21:29:00RenderingNormalExposure ModeAutoWhite BalanceManualScene Capture TypeStandardGain ControlNoneContrastNormalSaturationNormalSharpnessNormalSubject Distance RangeUnknownExposure Time1/166 secF-Numberf/3.9Exposure ProgramNormal ProgramISO Speed Rating50Exposure Bias0 EVMetering ModeCenter Weighted AverageLight SourceCloudy WeatherFlashNo Flash, CompulsoryFocal Length15.90 mmColor Space InformationsRGBImage Width349Image Height900