回答編集履歴
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test
CHANGED
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@@ -2,19 +2,15 @@
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OpenCV3
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```
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```python
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# OpenCV3
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img, contours, hierarchy = cv2.findContours(引数)
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```
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↓
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OpenCV4
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# OpenCV4
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-
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```
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contours, hierarchy = cv2.findContours(引数)
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@@ -24,17 +20,21 @@
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なので、以下のようにする必要があるのではないでしょうか？
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```
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```python
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cv2.findContours(
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frame_diff, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)[1]
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```
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↓
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-
```
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```python
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cv2.findContours(
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-
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frame_diff, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)[0]
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```
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