CT based encryption 1. Open contourlet 5 and run aaa.m for image decomposition and for denoising 2. Open tsss and A_hidetext.m and set break point at line 109 and run 3. After selecting image ind text press F5 4. Now run H_finalextra

Contourlet变换思想，选用拉普拉斯塔式滤波器结构对图像多分辨率分解来捕捉奇异点。-Contourlet transform thinking, the choice of Laplace tower filter structure for multi-resolution images to capture the singularity exploded.