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using
System;using
System.Collections.Generic;using
System.Linq;using
System.Text;using
System.Data;using
System.Drawing;using
System.IO;using
System.Drawing.Imaging;using
MODI;//Microsoft Office Document Imaging// 首先用office安装盘这个组件，默认安装office的时候是不会安装的，只要添加这个组件功能就好了安装说明：http://support.microsoft.com/kb/982760//组件Microsoft Office Document Imaging 12.0 Type Library（office2007）//或者Microsoft Office Document Imaging 11.0 Type Library（office2003）namespace
ToText{ /// <summary> /// Optical Character Recognition光学字符识别 /// 20140507 Geovin Du /// 涂聚文 /// </summary> public
static class OCRGetstring { /// <summary> /// 语言类型 /// </summary> /// <returns></returns> public
static DataTable getLanguageList() { DataTable dt = new
DataTable(); dt.Columns.Add("ID",typeof(int)); dt.Columns.Add("LanguageName", typeof(string)); dt.Columns.Add("LanguageLCID", typeof(string)); //dt.Rows.Add(1, "", 1); dt.Rows.Add(1,"简体中文", "2052"); dt.Rows.Add(2,"繁体中文", "1028"); dt.Rows.Add(3,"英语", "9"); dt.Rows.Add(4,"捷克语", "5"); dt.Rows.Add(5,"丹麦语", "6"); dt.Rows.Add(6,"德语", "7"); dt.Rows.Add(7,"希腊语", "8"); dt.Rows.Add(8,"西班牙语", "10"); dt.Rows.Add(9,"芬兰语", "11"); dt.Rows.Add(10,"法语", "12"); dt.Rows.Add(11, "匈牙利语", "14"); dt.Rows.Add(12, "意大利语", "16"); dt.Rows.Add(13, "日语", "17"); dt.Rows.Add(14, "韩语", "18"); dt.Rows.Add(15, "荷兰语", "19"); dt.Rows.Add(16, "挪威语", "20"); dt.Rows.Add(17, "波兰语", "21"); dt.Rows.Add(18, "葡萄牙语", "22"); dt.Rows.Add(19, "俄语", "25"); dt.Rows.Add(20,"瑞典语", "29"); dt.Rows.Add(21,"土耳其语", "31"); return
dt; } /// <summary> /// /// </summary> /// <param name="sValue"></param> /// <returns></returns> private
static MODI.MiLANGUAGES GetLanuageType(string
sValue) { switch
(sValue) { case
"2052": return
MODI.MiLANGUAGES.miLANG_CHINESE_SIMPLIFIED; case
"5": return
MODI.MiLANGUAGES.miLANG_CZECH; case
"6": return
MODI.MiLANGUAGES.miLANG_DANISH; case
"7": return
MODI.MiLANGUAGES.miLANG_GERMAN; case
"8": return
MODI.MiLANGUAGES.miLANG_GREEK; case
"9": return
MODI.MiLANGUAGES.miLANG_ENGLISH; case
"10": return
MODI.MiLANGUAGES.miLANG_SPANISH; case
"11": return
MODI.MiLANGUAGES.miLANG_FINNISH; case
"12": return
MODI.MiLANGUAGES.miLANG_FRENCH; case
"14": return
MODI.MiLANGUAGES.miLANG_HUNGARIAN; case
"16": return
MODI.MiLANGUAGES.miLANG_ITALIAN; case
"17": return
MODI.MiLANGUAGES.miLANG_JAPANESE; case
"18": return
MODI.MiLANGUAGES.miLANG_KOREAN; case
"19": return
MODI.MiLANGUAGES.miLANG_DUTCH; case
"20": return
MODI.MiLANGUAGES.miLANG_NORWEGIAN; case
"21": return
MODI.MiLANGUAGES.miLANG_POLISH; case
"22": return
MODI.MiLANGUAGES.miLANG_PORTUGUESE; case
"25": return
MODI.MiLANGUAGES.miLANG_RUSSIAN; case
"29": return
MODI.MiLANGUAGES.miLANG_SWEDISH; case
"31": return
MODI.MiLANGUAGES.miLANG_TURKISH; case
"1028": return
MODI.MiLANGUAGES.miLANG_CHINESE_TRADITIONAL; default: return
MODI.MiLANGUAGES.miLANG_ENGLISH; } } /// <summary> /// Images轉換文字 /// </summary> /// <param name="image">Image</param> /// <param name="language">语言类型</param> /// <returns></returns> public
static string ExtractText(this
System.Drawing.Image image,string
language) { var
tmpFile = Path.GetTempFileName(); StringBuilder sb = new
StringBuilder(); //string text; try { var
bmp = new
Bitmap(Math.Max(image.Width, 1024), Math.Max(image.Height, 768)); var
gfxResize = Graphics.FromImage(bmp); gfxResize.DrawImage(image, new
Rectangle(0, 0, image.Width, image.Height)); bmp.Save(tmpFile + ".bmp", ImageFormat.Bmp); var
doc = new
MODI.Document(); doc.Create(tmpFile + ".bmp"); // doc.OCR(MODI.MiLANGUAGES.miLANG_ENGLISH, true, true); doc.OCR(GetLanuageType(language), true, true); // 识别文字类型 var
img = (MODI.Image)doc.Images[0]; var
layout = img.Layout; sb.Append(layout.Text); //text = sb.ToString();// layout.Text; } finally { File.Delete(tmpFile); File.Delete(tmpFile + ".bmp"); } return
sb.ToString();// text; } /// <summary> /// 来源图片文件轉換文字 /// </summary> /// <param name="fileToOCR">file文件</param> /// <param name="language">语言类型</param> /// <returns></returns> public
static string getFileToOCR(string
fileToOCR, string
language) { StringBuilder sb = new
StringBuilder(); if
(File.Exists(fileToOCR)) { MODI.Document md = new
MODI.Document(); md.Create(fileToOCR); md.OCR(GetLanuageType(language), true, true); MODI.Image img; MODI.Layout layout; for
(int
i = 0; i < md.Images.Count; i++) { img = (MODI.Image)md.Images[i]; layout = img.Layout; sb.Append(layout.Text); } md.Close(false); } else { sb.Append(""); } return
sb.ToString(); } }} |
csharp:Optical Character Recognition,布布扣,bubuko.com
csharp:Optical Character Recognition
原文：http://www.cnblogs.com/geovindu/p/3715294.html