MATLAB: How to remove hair , and find the center of finger knuckle

Question

I used this code to remove the hairs, but the result were not good & affected the canny edge detection of the image ( I want to remove the hairs only from the images which have it , and the unhaired one must not be affected when the code applied to it ) , it is important to know that the code must not exceed 100 msec.

se = strel('disk',5);

hairs = imbothat(T,se);

replacedImage = roifill(T,hairs);

figure(4), imshow(replacedImage);

ll = edge (replacedImage,'canny')

figure(5),imshow (ll)

at the next step I want to find the knuckle location. (image is attached for clearness)

Answer 1

You can't find the center of the knuckle if you don't have the entire knuckle in the image. And if you did have it, it's not clear why you think you need to remove the hairs to find it. Do you think that you need to find vertical wrinkles to know where the knuckle is laterally, and that that hairs might interfere with that if the hair go vertically?