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我目前正在使用 ZXing-1.6,我遇到了来自 QRCodeWriter 类的这部分代码的问题

private static BitMatrix renderResult(QRCode code, int width, int height) {
ByteMatrix input = code.getMatrix();
int inputWidth = input.getWidth();
int inputHeight = input.getHeight();
int qrWidth = inputWidth + (QUIET_ZONE_SIZE << 1);
int qrHeight = inputHeight + (QUIET_ZONE_SIZE << 1);
int outputWidth = Math.max(width, qrWidth);
int outputHeight = Math.max(height, qrHeight);

int multiple = Math.min(outputWidth / qrWidth, outputHeight / qrHeight);
// Padding includes both the quiet zone and the extra white pixels to accommodate the requested
// dimensions. For example, if input is 25x25 the QR will be 33x33 including the quiet zone.
// If the requested size is 200x160, the multiple will be 4, for a QR of 132x132. These will
// handle all the padding from 100x100 (the actual QR) up to 200x160.
int leftPadding = (outputWidth - (inputWidth * multiple)) / 2;
int topPadding = (outputHeight - (inputHeight * multiple)) / 2;

BitMatrix output = new BitMatrix(outputWidth, outputHeight);

for (int inputY = 0, outputY = topPadding; inputY < inputHeight; inputY++, outputY += multiple) {
  // Write the contents of this row of the barcode
  for (int inputX = 0, outputX = leftPadding; inputX < inputWidth; inputX++, outputX += multiple) {
    if (input.get(inputX, inputY) == 1) {
      output.setRegion(outputX, outputY, multiple, multiple);
    }
  }
}

return output;

}

问题是当我得到的 datamatrix 大小为 60x60 并且输出矩阵应该为 100X100 时,我得到很多空白 + 静区,我猜你正在使用 int 变量进行操作,因为不可能有类似的 datamarix 节点大小3.23 它应该是整数。你能帮我猜一下,或者给我指点某个地方,那里已经讨论过了。

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1 回答 1

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已经在邮件列表上回答了——这是一个非常旧的版本,请使用更新的版本。是的,有一个最小边距,并且模块的大小必须是像素的整数倍。这可以使它比平时更小。这是正常的; 否则图像会失真。

于 2013-02-01T08:46:09.423 回答