mu and sigma for every pixel
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how to calculate mu and sigma for every pixel of a frame of a video or help me in using evfit for this situation
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Accepted Answer
Image Analyst
on 29 May 2012
mu is the pixel value. sigma is zero.
mu = mean(rgbImage(row, column, colorChannel)); % Same as the pixel value.
sigma = std(rgbImage(row, column, colorChannel)); % This will be zero since it's just one value.
I never heard of evfit. You can reword your question if you didn't fully explain the situation the first time.
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Image Analyst
on 1 Jun 2012
You accepted? Do you realize that the code above is basically a joke and was just meant to prod you into a better, more accurate description of what you really need?
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Tom Lane
on 1 Jun 2012
I similarly don't understand, but if your video is a 3-D array with V(i,j,:) representing pixel (i,j) for all frames, then this should do it:
params = evfit(squeeze(V(i,j,:)))
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