利用MATLAB，求图像的各级像素、频率，绘制图形直方图、规定化直方图，进行分析-Use MATLAB, seeking all levels of image pixels, frequency, graphing histograms, histogram provisions for analysis

实验2绿叶变色，实验3图像数字化显示，实验4图像类型转换，实验5对比度增强，实验6直方图均衡化和规定化，实验7噪声添加和空域滤波，实验8边缘增强和边缘检测，实验9彩色图像增强，fft，dct，dwt变化及压缩，滤波器，实验20运动退化和维纳波复原，实验21图像的几何畸形校正等实验的代码和报告-Experiment 2 leaves change color, 3 digital image display, the image type conversion, 4 5 contrast enha

利用python、cv2、numpy、matplotlib对图像进行直方图处理，包括直方图显示、直方图均衡化、直方图匹配(规定化)-Use python, cv2, numpy, matplotlib to process the image histogram for enhenceing, including the histogram display, histogram equalization, histogram matching

①线性灰度变换（函数形式） ② 编程计算图像的直方图，并与函数imhist比较 ③ 执行直方图均衡化和规定化histeq ④ 给图像添加噪声 ⑤ 执行均值滤波、高斯滤波和中值滤波 ⑥ 执行拉普拉斯滤波 ⑦ 执行低通滤波和高通滤波(Linear gray scale transformation (function form) The histogram of the image is calculated and compared with the function imhist