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Image Processing matlab problem!

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auto_mitch

auto_mitch

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median filter in matlab

Hi everyone!
I am user of image processing toolbox of matlab and i have a problem with my project.
I want to remove from a face image some hairy spots.
Firstly I used a very low pass filter on original image.
Also i used a median filter on original image.
Hereafter i subtracted the very low pass filter result from the median
filter result and the final image has only the hairy spots.
I tried to subtract from the median filter result the image with hairy spots only.
The result of last subtraction wasn't good. Some hairy spots removed but not all of them because the pixels of final image have been moved a because of the very low pass filter effect.
Can u help me? Any ideas?
thanks anyway!!!
 

You can get the grayscale level or RGB data range of hairy spots and then perform a thresholding technique to separate the hairy spots and then you subtract them from original image
 

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