梯度奇异值分解的图像质量评价模型，可有效评价各类图像的质量，效果明显优于传统评价方法-the thesis extracts the structure characteristics of the image by using gradient singular value decomposition, and builds an uation model based on local singular value decomposition

基于空域和熵的二维图像质量评价程序，提取特征后用SVM建立模型。-The code of No-reference Image Quality Assessment Based on Spatial and Spectral Entropies