在DSP中实现基于帧间差分后二值图像的跟踪加框处理，原理是计算出目标（灰度为255）重心坐标后，对其进行加框处理。-In the DSP-based fr a me difference in the binary image of the track after the framing treatment, the principle is to calculate the target (gray 255) the center of gravity coordinates, its fra