Calculate the conrast by the difference between the highest and lowest intensity value

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dila suay
dila suay 2023-3-18
回答： Matt J 2023-3-18
I would like to calculate the image Contrast which I defined as the difference between the highest and lowest intensity value of the image. However I want to ignore a certain percentage of pixels to account for outliers (otherwise a single white and black pixel would lead to "full contrast")
How can I ignore any values outside mean+-std andt hen I will calculate the max(img)-min(img) ?
Thank you so much

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Matt J
Matt J 2023-3-18
You could use medfilt2 or medfilt3 to get rid of the outliers. You could then use discretize to bin the data into bins of width 2*std for the purposes of computing contrast.

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