how can i compute the distance between every two strias?The distances between every two strias in an image are almost equal .I have a picture for you in the accessory.there are many trias in all kinds of orientation in an image.fistly,i should find the most consious area,because it is simple to compute . Secondly,To improve precision,i should compute the distance of a group of trias,then conpute its average value.i dont know how to compute .pls teach me,thanks very much!