how can i label pixels of contour ?

hi, Having a binary image like the attached image which have 3 contours. I need to identify pixels of each contour. So, i want to assign the same label to pixels of each contour. It means that the result image contains 3 contours such that pixels of the first contour have label(=value) equal to 1, pixels of the second one have label 2 and pixels of the last contour have 3. Any suggestion will be appreciated.

thanks !

Answer 1

[Walter Roberson]

bwlabel()

[thoraya]

that what i need. thank you very much