Support transparent-bg QR codes
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@ -48,6 +48,8 @@ class QrcodeDecoder {
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}
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this.gCtx!.clearRect(0, 0, width, height);
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this.gCtx!.fillStyle = "#ffffff";
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this.gCtx!.fillRect(0, 0, width, height);
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this.gCtx!.drawImage(target, 0, 0, width, height);
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const imageData = this.gCtx!.getImageData(
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