Seven-order moments based on edge detection

A moment invariants algorithm was used to extract the eigenvector for the characteristics of the human ear,and was not subject to restrict on translation,rotation and the ratio of changes.Canny algorithm was used for edge detection of human ear based on moment invariants.Experimental results show that Canny algorithm can not miss the real edge and regard the non-edge points as the edge points.It detects the edge points as close as possible in the actual center of the edge and inhibits the false edge response.