In the past 20 years, the emergence

In the past 20 years, the emergence of wave transform provides a solid and comprehensive framework for multi-scale signal analysis, which produces better results than the equivalent method. Existing text Relationship with the above Gabor filtering method The waveform conversion can cover the frequency domain more accurately, thus greatly reducing the correlation between the decomposition frequency bands. he The main method is to use orthogonal wave to decompose the image, so as to obtain various resolution images. A low-resolution map representing low-frequency information and an image with different resolutions including a high-frequency subband image representing texture characteristics are included.