Introduction - If you have any usage issues, please Google them yourself
The file contains three main programs, and related images, three main programs are computer1, computer2, computer3
Computer1 on the image of the gray scale, save and other implementations;
The wavelet transform of the image is carried out, and the three subbands of HL, LH and HH are reconstructed respectively by Fourier transform, discrete cosine transform, two - layer wavelet transform and reconstruction.
Computer3 to achieve the image histogram equalization, and the image was homomorphic filtering.