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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）
//中文简体OCR引擎 http://www.microsoft.com/downloads/thankyou.aspx?familyId=dd172063-9517-41d8-82af-29c38f7437b6&displayLang=zh-hk
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();
}
}
}
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