闻婷实验板的直方图统计实验，通过摄像头捕捉图像，经过直方图统计后，在显示屏右侧显示直方图，左侧显示采集的图像-Histogram experiments Wen-ting experimental board image captured by the camera, and the right side of the display to display the histogram after histogram display images collected on the left