用opnecv实现的一个简短的颜色直方图 具有很强的指导意义-Opnecv achieved with a short color histogram is of great guiding significance

打开摄像头并且可以录像，保存成avi格式，对于新手有一定的指导意义-Open the camera and can be video, save into avi format, there are certain guiding significance for the novice