Tessnet2图片识别（2）

1. 引用 tessnet2.dll (只有NET2.0版本)

2. 视图页

<%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage" %>

<asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server">

    主页

</asp:Content>

<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">

    <h2><%: ViewData["Message"] %></h2>

    <p>

        若要了解有关 ASP.NET MVC 的更多信息，请访问 <a href="http://asp.net/mvc" title="ASP.NET MVC 网站">http://asp.net/mvc</a>。

    </p>

<form id="form1" runat="server" enctype="multipart/form-data" action="indexnew" >

    <div>

    <a id="addAttach" href="#">添加上传文件</a>

    <div id="files">

    <input type="file" name="f1"/>

<%--    <input type="file" name="f2"/>--%>

    </div>

   <input type="submit" value="提交" />

    </div>

    </form>

</asp:Content>

3.后台代码

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.Mvc;

using tessnet2;

using System.Drawing;

using System.Drawing.Imaging;

namespace MvcApplicationAndTesseert2.Controllers

{

    [HandleError]

    public class HomeController : Controller

    {

        public ActionResult Index()

        {

            return View();

        }

        public ActionResult IndexNew()

        {

            HttpPostedFileBase hf = HttpContext.Request.Files[];

            string path = Server.MapPath("~/image/"+DateTime.Now.ToString("yyyyMMddHHmmss")+".jpg");

            hf.SaveAs(path);

            //D:\CSharp\TessnetTest\ReCaptcha.jpg是待识别图片在电脑中的路径

            Bitmap map = new Bitmap(path);//@"D:\3.png"

            tessnet2.Tesseract ocr = new tessnet2.Tesseract();//声明一个OCR类

            string txt = "";

            List<tessnet2.Word> result = new List<tessnet2.Word>();

            try

            {//当前识别变量设置：数字与大写字母，这种写法会导致无法识别小写字母，加上小写字母即可

                ocr.SetVariable("tessedit_char_whitelist", "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ");

                //应用当前语言包。注，Tessnet2是支持多国语的。语言包下载链接：http://code.google.com/p/tesseract-ocr/downloads/list

                //D:\CSharp\TessnetTesttessdata是语言包在电脑中的路径

                ocr.Init(Server.MapPath("~/tessdata"), "eng", false);

                result = ocr.DoOCR(map, Rectangle.Empty);

                foreach (tessnet2.Word word in result)

                {

                    txt += word.Text;

                }

                Console.WriteLine(txt);

                Console.ReadLine();

            }

            catch (Exception ex)

            {

            }

            return Content(txt);

        }

        public ActionResult About()

        {

            return View();

        }

    }

}

demo