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LEADTOOLS如何检测,读取和写入条形码
2020-11-06 22:27:00 【roffey】
工作场所中存在许多多页的文件。能够加载、拆分和提取是许多应用程序的重要需求。一些最常见的多页文件类型是:PDF,TIFF和Microsoft Office格式,例如Docx,Doc,Xls和Xlsx。LEADTOOLS支持所有这些格式以及30多种其他多页格式。由于存在多种不同类型的多页格式,因此尝试支持常见的格式可能会让人头疼,而试图支持所有这些格式的也像一场噩梦。幸运的是,LEADTOOLS SDK可以用不到五行代码来完成此应用程序。
LEADTOOLS (Lead Technology)由Moe Daher and Rich Little创建于1990年,其总部设在北卡罗来纳州夏洛特。LEAD的建立是为了使Daher先生在数码图象与压缩技术领域的发明面向市场。在过去超过30年的发展历程中,LEAD以其在全世界主要国家中占有的市场领导地位,在数码图象开发工具领域中已成为既定的全球领导者。LEADTOOLS开发与发布的LEAD是屡获殊荣的开发工具包。
在对条形码内的机器可读数据进行编码和解码时,速度和准确性是关键。LEADTOOLS提供的顶级计算机视觉条形码库比市场上任何其他条形码SDK都更快,更可靠,从而确保您始终获得最佳结果。
无论是在驾照背面找到的PDF417条码,在贴纸上是QR条码,还是在产品背面是UPC条码,LEADTOOLS都可以支持它以及100多种不同的条码符号。
只需四行代码,您就可以确定条形码的符号体系,范围等等。无论角度或颜色如何,都可以快速找到并解码所有受支持的符号体系。为了提高准确性,LEAD提供了许多不同的配置选项,例如EnableDoublePass,EnablePreprocessing和EnableFastMode,以修改条形码解码的行为以适合您的应用程序需求。
下面的C#代码向您展示了检测和解码图像中的条形码所需的一切。如果您需要完整的分步教程,请查看我们的教程,该指南介绍了如何检测和提取条形码以及将1D和2D条形码写入图像。
// READ BARCODE
static void ReadBarcode(RasterImage image)
{
BarcodeEngine barcodeEngineInstance = new BarcodeEngine();
try
{
BarcodeData[] dataArray = barcodeEngineInstance.Reader.ReadBarcodes(image, LeadRect.Empty, 0, null);
StringBuilder sb = new StringBuilder();
sb.AppendFormat("{0} barcode(s) found", dataArray.Length);
sb.AppendLine();
for (int i = 0; i < dataArray.Length; i++)
{
BarcodeData data = dataArray[i];
sb.AppendFormat("Symbology: {0}, Location: {1}, Data: {2}", data.Symbology.ToString(), data.Bounds.ToString(), data.Value);
sb.AppendLine();
}
Console.WriteLine(sb.ToString());
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
Console.ReadLine();
}
// GENERATE BARCODE
static void WriteUPCABarcode(RasterImage image)
{
BarcodeData data = new BarcodeData
{
Symbology = BarcodeSymbology.UPCA,
Value = "01234567890",
Bounds = new LeadRect(10, 10, 600, 200)
};
OneDBarcodeWriteOptions options = new OneDBarcodeWriteOptions
{
EnableErrorCheck = true,
TextPosition = BarcodeOutputTextPosition.Default
};
barcodeEngine.Writer.WriteBarcode(image, data, options);
}
试试看!
要自己进行测试,请确保从我们的网站上免费获得最新的LEADTOOLS SDK评估(如果尚未安装)。该试用版有效期为60天。
请继续关注,我们将继续发布更多教程,程序员可以使用这些教程来开发直接影响数据捕获,识别,交换和其他紧迫业务需求的应用程序。
版权声明
本文为[roffey]所创,转载请带上原文链接,感谢
https://my.oschina.net/u/4587239/blog/4484607
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