*error: (-215:Assertion failed) (mtype == CV_8U || mtype == CV_8S) && _mask.sameSize(psrc1) in function ‘binary_op’

**报错原因：**图片读取类型不一致，dtype 分别为uint8 ,unit32

解决方法：

在这里插入代码片

#unit32 转 uint8
imgNew = cv2.imread("received_image.jpg")
people_mask = torch.any(people_masks, dim=0).int() * 255
torch.tensor(people_mask, dtype=torch.uint8)
people_mask0 = people_mask.cpu().numpy()
image = cv2.bitwise_and(imgNew,imgNew,mask=people_mask0)