在图片上发现同心圆靶标，将靶标中心标识出来并保存标志后的图片-Concentric circles in the image found on the target, the target center identification sign was out and save the image

人体跟踪监测源代码，可用于识别图像中人体的个数，并将其标示出来-This codes have the function that can pick out and sign persons from pictures...