Introduction - If you have any usage issues, please Google them yourself
Grayscale images of the two together: The wavelet function sym4 1 to 2 layers of image decomposition, image fusion and the decomposition coefficients: for treatment, highlight the profile, weakening the details. Wavelet function sym4 2 for 2 on the image layer decomposition. Finally, in wavelet transform domain in the fusion, further integration of the coefficient of reconstruction.