C# 中文文字识别OCR_emgucv 4.4.0.4099

作者：2023面试高手 | 2024-04-06 00:24:52

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emgucv 4.4.0.4099

效果

效果

项目

代码

using Emgu.CV;
using Emgu.CV.CvEnum;
using OcrLiteLib;
using System;
using System.IO;
using System.Windows.Forms;

namespace OcrLiteOnnxCs
{
public partial class FormOcrLite : Form
{
private OcrLite ocrEngin;

public FormOcrLite()
{
InitializeComponent();
}

private void FormOcrLite_Load(object sender, EventArgs e)
{
string appPath = AppDomain.CurrentDomain.BaseDirectory;
string appDir = Directory.GetParent(appPath).FullName;
string modelsDir = appPath + "models";
modelsTextBox.Text = modelsDir;
ocrEngin = new OcrLite(modelsDir,(int) numThreadNumeric.Value);
}

private void initBtn_Click(object sender, EventArgs e)
{
ocrEngin = new OcrLite(modelsTextBox.Text, (int) numThreadNumeric.Value);
}

private void openBtn_Click(object sender, EventArgs e)
{
using (var dlg = new OpenFileDialog())
{
dlg.Multiselect = false;
dlg.Filter = "(*.JPG,*.PNG,*.JPEG,*.BMP,*.GIF)|*.JPG;*.PNG;*.JPEG;*.BMP;*.GIF|All files(*.*)|*.*";
if (dlg.ShowDialog() == DialogResult.OK && !string.IsNullOrEmpty(dlg.FileName))
{
pathTextBox.Text = dlg.FileName;
Mat src = CvInvoke.Imread(dlg.FileName, ImreadModes.Color);
pictureBox.Image = src.ToBitmap();
}
}
}

private void modelsBtn_Click(object sender, EventArgs e)
{
using (var dlg = new FolderBrowserDialog())
{
dlg.SelectedPath = Environment.CurrentDirectory + "\\models";
if (dlg.ShowDialog() == DialogResult.OK && !string.IsNullOrEmpty(dlg.SelectedPath))
{
modelsTextBox.Text = dlg.SelectedPath;
}
}
}

private void detectBtn_Click(object sender, EventArgs e)
{
int padding = (int)paddingNumeric.Value;
int imgResize = (int)imgResizeNumeric.Value;
float boxScoreThresh = (float)boxScoreThreshNumeric.Value;
float boxThresh = (float)boxThreshNumeric.Value;
float minArea = (float)minAreaNumeric.Value;
float unClipRatio = (float)unClipRatioNumeric.Value;
bool doAngle = doAngleCheckBox.Checked;
bool mostAngle = mostAngleCheckBox.Checked;
OcrResult ocrResult = ocrEngin.Detect(pathTextBox.Text, padding, imgResize, boxScoreThresh, boxThresh, minArea, unClipRatio, doAngle, mostAngle);
ocrResultTextBox.Text = ocrResult.ToString();
strRestTextBox.Text = ocrResult.StrRes;
pictureBox.Image = ocrResult.BoxImg.ToBitmap();

}

private void partImgCheckBox_CheckedChanged(object sender, EventArgs e)
{
ocrEngin.isPartImg = partImgCheckBox.Checked;
}

private void debugCheckBox_CheckedChanged(object sender, EventArgs e)
{
ocrEngin.isDebugImg = debugCheckBox.Checked;
}
}
}


using Emgu.CV;
using Emgu.CV.CvEnum;
using OcrLiteLib;
using System;
using System.IO;
using System.Windows.Forms;
 
namespace OcrLiteOnnxCs
{
    public partial class FormOcrLite : Form
    {
        private OcrLite ocrEngin;
 
        public FormOcrLite()
        {
            InitializeComponent();
        }
 
        private void FormOcrLite_Load(object sender, EventArgs e)
        {
            string appPath = AppDomain.CurrentDomain.BaseDirectory;
            string appDir = Directory.GetParent(appPath).FullName;
            string modelsDir = appPath + "models";
            modelsTextBox.Text = modelsDir;
            ocrEngin = new OcrLite(modelsDir,(int) numThreadNumeric.Value);
        }
 
        private void initBtn_Click(object sender, EventArgs e)
        {
            ocrEngin = new OcrLite(modelsTextBox.Text, (int) numThreadNumeric.Value);
        }
 
        private void openBtn_Click(object sender, EventArgs e)
        {
            using (var dlg = new OpenFileDialog())
            {
                dlg.Multiselect = false;
                dlg.Filter = "(*.JPG,*.PNG,*.JPEG,*.BMP,*.GIF)|*.JPG;*.PNG;*.JPEG;*.BMP;*.GIF|All files(*.*)|*.*";
                if (dlg.ShowDialog() == DialogResult.OK && !string.IsNullOrEmpty(dlg.FileName))
                {
                    pathTextBox.Text = dlg.FileName;
                    Mat src = CvInvoke.Imread(dlg.FileName, ImreadModes.Color);
                    pictureBox.Image = src.ToBitmap();
                }
            }
        }
 
        private void modelsBtn_Click(object sender, EventArgs e)
        {
            using (var dlg = new FolderBrowserDialog())
            {
                dlg.SelectedPath = Environment.CurrentDirectory + "\\models";
                if (dlg.ShowDialog() == DialogResult.OK && !string.IsNullOrEmpty(dlg.SelectedPath))
                {
                    modelsTextBox.Text = dlg.SelectedPath;
                }
            }
        }
 
        private void detectBtn_Click(object sender, EventArgs e)
        {
            int padding = (int)paddingNumeric.Value;
            int imgResize = (int)imgResizeNumeric.Value;
            float boxScoreThresh = (float)boxScoreThreshNumeric.Value;
            float boxThresh = (float)boxThreshNumeric.Value;
            float minArea = (float)minAreaNumeric.Value;
            float unClipRatio = (float)unClipRatioNumeric.Value;
            bool doAngle = doAngleCheckBox.Checked;
            bool mostAngle = mostAngleCheckBox.Checked;
            OcrResult ocrResult = ocrEngin.Detect(pathTextBox.Text, padding, imgResize, boxScoreThresh, boxThresh, minArea, unClipRatio, doAngle, mostAngle);
            ocrResultTextBox.Text = ocrResult.ToString();
            strRestTextBox.Text = ocrResult.StrRes;
            pictureBox.Image = ocrResult.BoxImg.ToBitmap();
 
        }
 
        private void partImgCheckBox_CheckedChanged(object sender, EventArgs e)
        {
            ocrEngin.isPartImg = partImgCheckBox.Checked;
        }
 
        private void debugCheckBox_CheckedChanged(object sender, EventArgs e)
        {
            ocrEngin.isDebugImg = debugCheckBox.Checked;
        }
    }
}

说明

1. Vs2017打开OcrLiteOnnxCs.sln。
2. 解决方案资源管理器->OcrLiteLib->右键->管理NuGet程序包->浏览->搜索->安装
* 注意：Emgu.CV要选作者是“Emgu Corporation”
* Emgu.CV 4.4.0.4099
* Emgu.CV.runtime.windows 4.4.0.4099
* MicroSoft.ML.OnnxRuntime 1.5.2
* clipper_library 6.2.1
3. 解决方案资源管理器->OcrLiteOnnxForm->右键->管理NuGet程序包->浏览->搜索->安装
* 注意：Emgu.CV要选作者是“Emgu Corporation”
* Emgu.CV 4.4.0.4099
* Emgu.CV.Bitmap 4.4.0.4099
4. 确保：OcrLiteOnnxForm设为启动项目
5. 确保：OcrLiteOnnxForm->右键->属性->生成->平台目标:x64
6. 确保：OcrLiteLib->右键->属性->生成->平台目标:x64
7. 生成解决方案

基于开源项目chineseocr_lite

下载

完整Demo下载

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