Abstract: Introduced a way of utilizing VCC to get the perimeter of an image region, the length and width of the minimum external rectangle of the image and the size of the region occupied by the image. Based on this, a new method to calculate the compact and the posture ratio of the image is proposed.

Key words: region-labeling-automata, image region, compact, posture ratio, VCC, region-labeling-automata, image region, compact, posture ratio