A Color Image Edge Detection Modified Algorithm Based on Quaternion Representation
LI Xiao-niu · Computer Technology and Development · 2008
Image edge detection is very important to the subsequent image segmentation and recognition.Aiming at the actual application of color image edge detection,some characteristics and faults of the traditional edge detecting template are compared and analyzed.A multidirection Sobel edge detection template is proposed.Aiming at the faults of the traditional algorithms,the modified algorithm is proposed with the help of quaternion representation.The essay carries out color image edge detection by decomposing color space.The result shows that the algorithm is effective and simple.The speed of edge detection is improved with the method of quaternion representation.