I am working on image processing of pavement surface.After image enhancement and segmentation,now i want to find out the area of the pot holes and cracks of the pavement surface.
 really need a advice how to write a algorithm to find out the area of cracks and potholes.

Do you have the Image Processing Toolbox?  If so, have a look at regionprops - it will measure the areas of objects in a segmented image. Segmentation is the hardest part of this problem, so if you've achieved that already, you're almost finished.

On Sep 8, 12:57=A0am, "pradyumna " <civil_sa...@rediffmail.com> wrote:
> I am working on image processing of pavement surface.After image enhancem=
ent and segmentation,now i want to find out the area of the pot holes and c=
racks of the pavement surface.
> =A0really need a advice how to write a algorithm to find out the area of =
cracks and potholes.

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This has been done before.  For example, look up papers by Bugao Xu
from Texas.