图像变化检测算法，由t检验得到差分图像的变化掩膜。左后成功检测到图像中运动的物体。-Image change detection algorithms have been tested by the t change difference image mask. Left a successful campaign to detect objects in images.

give you the possibliti of remouving a parte of image and générate a mask

使用opencv做出的图片合成效果 mask操作-Make use opencv image synthesis effects mask operation