C#中OCR的靠谱方式

 

https://www.cnblogs.com/xuexz/p/17905030.html

注意：使用SpireOCR时要取消目标平台【首选32位】的勾选，否则会报错。

 

C# using PaddleOCRSharp;
using Spire.OCR;namespace WinFormsApp
{public partial class Form1 : Form{public PaddleOCREngine engine;public Form1(){InitializeComponent();engine = CreateOCRParameter();// 这个只能引用一次，否则会出现内存一直增加的问题
        }#region SpireOCRprivate void SpireOCR_Click(object sender, EventArgs e){textBox1.Text = "";this.openFileDialog1.FileName = "";this.openFileDialog1.Filter = "所有文件(*.*)|*.*";if (this.openFileDialog1.ShowDialog() == DialogResult.OK){OcrScanner scanner = new OcrScanner();scanner.Scan(this.openFileDialog1.FileName);scanner.Dispose();textBox1.Text = "SpireOCR识别结果：\r\n" + scanner.Text.ToString().Split("Evaluation")[0];}}#endregion#region PaddleOCRSharppublic PaddleOCREngine CreateOCRParameter(){OCRParameter oCRParameter = new OCRParameter();oCRParameter.numThread = 6;//预测并发线程数oCRParameter.Enable_mkldnn = 1;//web部署该值建议设置为0,否则出错，内存如果使用很大，建议该值也设置为0.oCRParameter.cls = 1; //是否执行文字方向分类；默认falseoCRParameter.det = 1;//是否开启方向检测，用于检测识别180旋转oCRParameter.use_angle_cls = 1;//是否开启方向检测，用于检测识别180旋转oCRParameter.det_db_score_mode = 1;//是否使用多段线，即文字区域是用多段线还是用矩形，oCRParameter.UnClipRatio = 8.6f;oCRParameter.MaxSideLen = 960;OCRModelConfig config = null;PaddleOCREngine engine = new PaddleOCREngine(config, oCRParameter);return engine;}private void PaddleOCRSharp_Click(object sender, EventArgs e){textBox1.Text = "";this.openFileDialog1.FileName = "";this.openFileDialog1.Filter = "所有文件(*.*)|*.*";if (this.openFileDialog1.ShowDialog() == DialogResult.OK){OCRResult ocrResult = engine.DetectText(this.openFileDialog1.FileName);textBox1.Text = "PaddleOCRSharp识别结果：\r\n" + ocrResult.Text;}}#endregion}
}

 

 

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