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Result of html5 Canvas getImageData or toDataURL

Result of html5 Canvas getImageData or toDataURL - Which takes up more memory? Part of my app includes html5 photo editing using a mixture of standard 2d ...

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查詢 「getImageData」的人也找了：

  1. getImageData
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  3. createImageData
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  4. drawImage
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  5. Uint8ClampedArray
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  6. measureText
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  7. failed to execute 'getimagedata' on 'canvasrenderingcontext2d': the source width is 0.
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  8. ImageBitmap
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