Abstract
An image processing method, a training method of classifier and an evaluate method of lesion risk are provided. In the image processing method, an image including a mucosa layer is obtained. Further, an upper surface boundary of the mucosa layer is detected. A plurality of crabwise areas from the upper surface boundary top to down is obtained, wherein the crabwise areas are adjacent sequentially. Furthermore, a lower boundary of the mucosa layer is obtained according to a uniform parameter of the crabwise areas. Thereby, a line of demarcation between the mucosa layer and a sub mucosa layer is obtained.