利用opencv2.2编程实现usb摄像头的灰度图像获取-Use opencv2.2 programming usb camera gray image acquisition

从摄像头提取视频文件，并显示每个图像帧的灰度直方图与一维RGB彩色直方图，并且比较上述直方图的距离。有四种比较方法一一实现了。-Extract the video file from the camera and display each image frame of gray-scale histogram and the one-dimensional RGB color histogram, and compare the histogram distance. There are fou

经典的灰度共生矩阵纹理计算方法，实现用SDRAM运行nios，同时用SRAM保存摄像头数据，DC-DC部分采用定功率单环控制。- Classic GLCM texture calculation method, Implemented with SDRAM run nios, while saving camera data SRAM, DC-DC power single-part set-loop control.

使用串口调试摄像头，可观察灰度和二值化两种图像(Use the serial port to debug the camera, you can observe the grayscale and binary image)