How to detect between any two pixels (preferably far) there exist an number of foreground pixels of an image (foreground=white and background=black)???

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Mohammad Bhat
Mohammad Bhat 2018-7-18
评论： Mohammad Bhat 2018-7-18
Hi,
I have to count black pixels between two white pixels in any direction???

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Guillaume
Guillaume 2018-7-18
improfile (with the default 'nearest' interpolation) should give you all the pixels between your two points. It's then trivial to sum the pixels that are 0.
numblackpixels = sum(improfile(yourimage, locationofpixel1, locationofpixel2) == 0)
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