说明：  对可见光进行了直方图均衡化，中值滤波等预处理，可以运行！！希望有帮助，用于基于pca红外与可见光图像的目标识别预处理。
(To visible light has carried on the histogram equalization, median filter, such as pretreatment can run!!!!!Hope to have help, for target recognition based on pca infrared and visible light image preprocessing.)