图像处理。从CCD相机获得的激光狭缝衍射图片，经过MATLAB处理，计算出衍射光强的最大和最小值。（对应的光强用像素数表示。波峰光强最大，波谷光强最小。程序算出波峰和波谷的像素数）-The image processing. Laser slit diffraction image CCD camera, after processing, MATLAB to calculate the diffraction intensity of maximum and minimum values.