Edge Detection Based on Improved LOG Operator and Wavelet Transform

The traditional LOG operator does not have the adaptive ability itself in the variance of Gaussian filtering.The variance directly affects the de-noising and the edge preserving effect.Aiming at on the problem,a new kind of LOG operator is proposed.It detects the edge of original image by the means of improved LOG operator and wavelet transform respectively,and then gets a new image by fusing the two edge images.It is shown that the fusion method contain the advantage of two detecting methods and obtain more perfect edge image.