python调用cv2.findContours时报错：ValueError: not enough values to unpack (expected 3, got 2)

时间 2019-12-06

标签 python 调用 cv2.findcontours findcontours 报错 valueerror values unpack expected got 栏目 Python 繁體版

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OpenCV旧版，返回三个参数：python im2, contours, hierarchy = cv2.findContours(mask, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE) 要想返回三个参数：ip 把OpenCV 降级成3.4.3.18 就能够了，在终端输入pip install opencv-python==3.4.3.18pip Open

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1. python3.6.5调用cv2.findContours时报错：ValueError: not enough values to unpack (expected 3, got 2)
2. ValueError: not enough values to unpack (expected 2, got 0)
3. Celery ValueError: not enough values to unpack (expected 3, got 0)的解决方案
4. yolov3-tiny转onnx报错 not enough values to unpack (expected 2, got 1)
5. cv2 使用中遇到not enough values to unpack (expected 3, got 2) 解决方法
6. 错误:not enough values to unpack (expected 2, got 1)的改进
7. win运行celery的，解决ValueError: not enough values to unpack (expected 3, got 0)
8. ValueError: too many values to unpack (expected 2)
9. Celery 在Windows下启动worker时出现错误：ValueError: not enough values to unpack (expected 3, got 0)
10. Win10启动Celery报错解决方案 Task handler raised error: ValueError: not enough values to unpack

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