averaging a column in a image matlab
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Image Analyst on 8 Sep 2017
Use a tophat filter, imtophat(). then threshold that and use it as a mask to replace it with the eroded image (local min). Something like (untested)
badPixels = imtophat(grayImage, ones(1, 3));
mask = badPixels > 4; % or whatever number works.
erodedImage = imerode(grayImage, ones(1,3)); % Get local min value.
grayImage(mask) = erodedImage(mask);