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

Hi,

I have to count black pixels between two white pixels in any direction???

Answer 1

[Guillaume]

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)

[Mohammad Bhat]

Instead sum , If I want to detect only and in which direction or directions...If directions then selecting each direction . How to do that

[Guillaume]

I have absolutely no idea what you are asking now. There's only one direction between two given pixels.

[Mohammad Bhat]

horizontal, vertical and diagonal wise.....