C#WinForm-OCRTessnet图像识别

基于OCRTessnet图像识别

首先下载OCRTessnet库文件和语言包。点击下载

在项目中添加库文件tessnet2-64的引用

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WindowsFormsApplication6
{
    using System.Drawing;

    using tessnet2;
    public partial class OCRTessnet : Form
    {
        public string imgPath;
        private Bitmap image;
        private Tesseract ocr;
        public OCRTessnet(string imgPath)
        {
            InitializeComponent();
            this.imgPath = imgPath;
            imgPath = @"F:\doc\cLibrary\C#\2.png";  //识别目标图片
            image = new Bitmap(imgPath);
            //image = new Bitmap(@"C:\OCRTest\number.jpg");
            ocr = new Tesseract();
            ocr.SetVariable("tessedit_char_whitelist", "0123456789"); // If digit only
            //@"C:\OCRTest\tessdata" contains the language package, without this the method crash and app breaks
            ocr.Init(@"F:\doc\cLibrary\tessdata", "eng", true);//添加语言包引用
            pbResult.ImageLocation = imgPath;
        }

        private void btnTessnet_Click(object sender, EventArgs e)
        {
            try
            {
                var result = ocr.DoOCR(image, Rectangle.Empty);
                string temp="";
                foreach (Word word in result)
                    temp += word.Text+ "\r\n";
                tbResult.Text = temp;

            }
            catch (Exception exception)
            {

            }
        }

        private void pbResult_Click(object sender, EventArgs e)
        {

        }

        private void btnBack_Click(object sender, EventArgs e)
        {
            backMain();
        }
        private void backMain()
        {
            Form1 form1 = new Form1();
            this.Hide();
            form1.Show();
        }


    }
}

这里我是在其他窗体跳转到当前窗体，区别在于构造函数多了一个参数imgPath，这里你可以删掉然后写成局部变量。

下边是运行结果