Detection Algorithm of Color Printing Registration Deviation Based on Edge Co-occurrence Conditional Probability Matrix

In order to detect whether color printing registration image exists deviation and deviation parameter,this paper presents a detection algorithm of color printing deviation based on Edge Co-occurrence conditional probability Matrix(ECM).It detects the edge information of color printing registration image,calculates ECM of edge image,and extracts the peak value of ECM.If peak value exists except(0,0) point,the color printing registration image exists deviation and the peak value is the deviation parameter;otherwise,the color printing registration image does not exist deviation.Experiments demonstrate that the detection result can accurate to one pixel,and the algorithm is effective and accurate.