这是一个Matlab实现的隐马尔科夫树模型，用于计算图像的Contourlet系数。程序同时还包括图像去噪、纹理恢复的应用模型。-This is a Matlab realization of Hidden Markov Tree Model, used to calculate the coefficient Contourlet images. Program also includes image denoising, texture restoration of the application model.