回答編集履歴
2
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answer
CHANGED
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@@ -9,10 +9,10 @@
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9
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```python
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import cv2
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img = cv2.imread("
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img = cv2.imread("test.png", cv2.IMREAD_UNCHANGED)
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print(img.shape) # (288, 432, 3)
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if img.ndim == 3:
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if img.ndim == 3: # RGBならアルファチャンネル追加
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img = cv2.cvtColor(img, cv2.COLOR_RGB2RGBA)
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print(img.shape) # (288, 432, 4)
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```
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1
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answer
CHANGED
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@@ -7,12 +7,12 @@
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cvtColor で RGB 画像にアルファチャンネルを付加できます。
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```python
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10
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-
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import cv2
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img = cv2.imread("colorbar3.png")
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img = cv2.imread("colorbar3.png", cv2.IMREAD_UNCHANGED)
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print(img.shape) # (288, 432, 3)
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if img.ndim == 3:
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-
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img = cv2.cvtColor(img, cv2.COLOR_RGB2RGBA)
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print(
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print(img.shape) # (288, 432, 4)
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```
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