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How to ignore certain values in A histogram?

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Sean
Sean 2015-4-21
回答： Chad Greene 2015-4-21
Say I have an grey scale image S and I'm looking to ignore all values above 250, how do I do it with out using NaN? the reason I don't want to use NaN is because Im looking to take statistical information from the resultant image such as average etc.

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Chad Greene
Chad Greene 2015-4-21
You can get statistics with NaNs using nanmean or mean(A(isfinite(A(:)))).

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