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Category : 2D Graphic
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- Update : 2017-03-10
- Size : 369kb
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- Author ：che****
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Introduction - If you have any usage issues, please Google them yourself
Two- dimensional Wavelet Decomposition and Reconstruction Program Description
Main function
Mymain.m: by calling the function written by the two-dimensional wavelet decomposition and reconstruction of the signal
Main.m: using MATLAB wavelet transform function to achieve
2. Call the subfunction
Function [x2, cA, cV, cH, cD] mydwt2 (x, Lo_D, Hi_D)
The function mydwt () performs two-dimensional wavelet decomposition on x
The input parameters are x, Lo_D, Hi_D
X for the input signal, Lo_D for the low-pass filter, Hi_D for the high-pass filter
Output parameters: cA, cV, cH, cD- are the four sub-matrices of the wavelet decomposition coefficient matrix
X2 is the wavelet decomposition coefficient matrix
CA: low frequency partial decomposition factor cH: horizontal decomposition factor
CV: vertical direction decomposition coefficient cD: diagonal direction decomposition coefficient.
Function y myidwt2 (cA, cV, cH, cD, Lo_D, Hi_D)
The function myidwt2 ()
Packet file list
(Preview for download)
二维小波分解与重构\cinema.jpg
..................\cy.jpg
..................\downspl.m
..................\lena.jpg
..................\lena.png
..................\lena2.jpg
..................\lena3.jpg
..................\lena4.png
..................\main.m
..................\main_fast.m
..................\mydwt.m
..................\mydwt2.m
..................\myidwt.m
..................\myidwt2.m
..................\mymain.m
..................\pepper.png
..................\upspl.m
..................\wlfilter.m
..................\xiaobotuxiang.m
二维小波分解与重构
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