fftlowpass

亮度代表了图像的明暗程度，颜色代表了图像的色度，它包含了色调和饱和度。这个代码可以自动对这三个参数进行调整。(Brightness represents the degree of image brightness, color represents the color image, which includes hue and saturation. This code can be automatically adjusted to the three parameters.)

about algorithms of image enhancement processing

主成分分析程序,应用于图像特征提取，数据降维等方面 (the code of PCA)

基于互信息的分层金字塔的图像配准算法，互信息的加入让信息更丰富，精度更高(Image registration algorithm based on hierarchical pyramid of mutual information, mutual information is added to make information more abundant and higher precision)

This is a Scaling function definition Image cutoff ratio for H = 3

各种信息熵的计算，包括Tsallis 熵，Renyi熵，Shannon熵等，及它们的扩展形式。(The functions include extensive Shannon and nonextensive Tsallis,escort Tsallis,and renyi entropy.)

摄像标定法求T R矩阵的方法 摄像标定法求T R矩阵的方法 摄像标定法求T R矩阵的方法(how to calculate the matrix R and T using the Camera Calibration method)

说明：  图像采集，简单的c#联合halcon做ncc模板匹配的操作(Image acquisition, simple C# combined with Halcon to do NCC template matching operation)

基于JPEG的图像篡改检测代码 平台matlab (Platform based on the JPEG image tamper detection code matlab)

对于白噪声的功率谱分析给出了白噪声的频谱波形(White noise matlab )