python-3.x - 有时程序运行良好，有时显示高度、宽度、图层 = img.shape AttributeError: 'NoneType' object has no attribute 'shape'

Question

img_array = []
for filename in glob.glob('/home/adnan/Downloads/*.png'):
    img = cv2.imread(filename)
    print(img)
    height, width, layers = img.shape
    size = (width,height)
    img_array.append(img)


out = cv2.VideoWriter('project.mp4',cv2.VideoWriter_fourcc(*'DIVX'), 5, size)

for i in range(len(img_array)):
    out.write(img_array[i])
out.release()

• 程序有时有效，有时会出错 *

标签： python-3.xopencvimage-processing

Answer 1

文档解释说

如果无法读取图像（由于缺少文件、权限不正确、格式不支持或无效），该函数返回一个空矩阵

通话结束后，.imread()您需要立即检查此类故障：

if img is None:
    continue