Wavelet applications in many fields in recent years the advantages of wavelet analysis theory by making the common concern of many disciplines. Text image edge detection has been an important issue, and there have been new algorithms and theory of the emergence of the algorithm based on wavelet transform is an important part.Wavelet transform to detect the edge of the most classic is a great value algorithm.This paper gives the maximum modulus algorithm, a theorem proved by experiments on various other algorithms (such as the Canny algorithm, Sobel algorithm) and different characters to compare the edge extraction. This article also describes the text based on wavelet transform image fusion and image enhancement achieved through the Matlab program experiment.This also verified by Matlab wavelet transform image processing with good results.
Keywords:Wavelet Transform;MMA ;Edge Detection;Image strengthen;Handled Image fuses