Max - Min FilterThe "Max - Min" filter blurs the image by replacing each pixel with the difference of the highest pixel and the lowest pixel (with respect to intensity) within the specified windowsize.
For example, given the grayscale 3x3 pixel neighborhood;
The center pixel would be changed from 77 to 209 as it is the difference between the brightest pixel 219 and the darkest pixel 10 within the current window.
It is interesting to note that at a small window size (2 or 3) this filter is an effective edge detection filter aswel.
1. Select the window size of the Max - Min filter
|Source||Max - Min Filter (after greyscale applied)|
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