利用python-opencv计算二值图像面积

本代码只针对二值图像面积求取

image = cv2.imread("***.png")#输入二值图像
        height=image.shape[0]
        width=image.shape[1]
        k=0
        for i in range(height):
            for j in range(width):
                if image[i,j].all()>0:
                    k=k+1
        print(k)