8. The method of claim 7 further comprises computing a percentage of pixels inside the rectangle area whose pixel value is equal to the value of the texton word over the total number of pixels inside the rectangle area.
8. The method of claim 7 further comprises computing a percentage of pixels inside the rectangle area whose pixel value is equal to the value of the texton word over the total number of pixels inside the rectangle area. 9. The method of claim 8 , wherein the value of the texton word is equal to the cluster identification of the texton word.