回答編集履歴
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修正
answer
CHANGED
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@@ -14,4 +14,34 @@
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ret, data = cv2.imencode(".jpg", img, [cv2.IMWRITE_JPEG_QUALITY, 90])
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# binary -> base64 ascii
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base64_ascii = binascii.b2a_base64(data).decode('ascii')
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```
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```
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## base64 に変換できていることを確認したコード
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Jupyter Notebook 上にインライン画像として img タグ表示して確認
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```python
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import cv2
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import binascii
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from IPython.display import HTML, display
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# jpg の場合
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img = cv2.imread("sample.jpg")
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ret, jpg_data = cv2.imencode(".jpg", img, [cv2.IMWRITE_JPEG_QUALITY, 90])
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base64_ascii = binascii.b2a_base64(jpg_data).decode("ascii")
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img_tag = f'<img src="data:image/jpeg;base64,{base64_ascii}">'
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display(HTML(img_tag))
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# png の場合
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img = cv2.imread("bird.png")
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ret, png_data = cv2.imencode(".png", img)
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base64_ascii = binascii.b2a_base64(png_data).decode("ascii")
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img_tag = f'<img src="data:image/png;base64,{base64_ascii}">'
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display(HTML(img_tag))
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```
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1
修正
answer
CHANGED
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@@ -11,7 +11,7 @@
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img = cv2.imread("sample.jpg")
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# ndarray -> binary
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ret, data = cv2.imencode(".jpg", img, [
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ret, data = cv2.imencode(".jpg", img, [cv2.IMWRITE_JPEG_QUALITY, 90])
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# binary -> base64 ascii
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base64_ascii = binascii.b2a_base64(data).decode('ascii')
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```
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