Is it normal, when applying gaussian oder median filter to image-profile, the counts increase significantly?

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Marc Hummel 2016-6-27

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https://ww2.mathworks.cn/matlabcentral/answers/292463-is-it-normal-when-applying-gaussian-oder-median-filter-to-image-profile-the-counts-increase-signif

评论： Image Analyst 2016-6-27

Hello everyone,

I've got a huge problem right now. I'm analyzing some images in Matlab and do create average verticle profiles from the center of the image therefore. When applying a median filter or a gaussian filter to it, the peak/counts increases significantly up to 10%. Is this normal for these kind of filter and is there any other filtering option?

This is how I use them:

    for j = 1:numofim
          ImStack_filter(:,:,j) = medfilt2(ImStack_filter(:,:,j),[med_filt_size med_filt_size]);
    end
    for j = 1:numofim
          ImStack_filter(:,:,j) = imgaussfilt(ImStack_filter(:,:,j),sigma);
    end