Friday, May 21, 2010

Low Pass Javascript

As part of the runsat work, I've had a continual battle to get elevation results "realistic"

This is particularly challenging because of "noise" in the sampled elevation data.

The latest attempt at this, has been to use a low pass filter - based on work at http://mshook.appspot.com/z/firkernel.htm - to smooth the elevation data.

You can see the effect:

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