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1、using System;using System.Collections.Generic;using System.Text;using System.Collections;using System.Drawing;using System.Drawing.Imaging;using System.Runtime.InteropServices;namespace BallotAiying2class UnCodebasepublic Bitmap bmpobj;public UnCodebase(Bitmap pic)bmpobj = new Bitmap(pic); /转换为 Form
2、at32bppRgb/ / 根据 RGB，计算灰度值/ / Color 值/ 灰度值，整型private int GetGrayNumColor(System.Drawing.Color posClr)return (posClr.R * 19595 + posClr.G * 38469 + posClr.B * 7472) 16;/ / 灰度转换,逐点方式/ public void GrayByPixels()for (int i = 0; i / 去图形边框/ / public void ClearPicBorder(int borderWidth)for (int i = 0; i bm
3、pobj.Width - 1 -borderWidth | i bmpobj.Height - 1 - borderWidth)bmpobj.SetPixel(j, i, Color.FromArgb(255, 255, 255);/ / 灰度转换,逐行方式/ public void GrayByLine()Rectangle rec = new Rectangle(0, 0, bmpobj.Width, bmpobj.Height);BitmapData bmpData = bmpobj.LockBits(rec, ImageLockMode.ReadWrite, bmpobj. Pixel
4、Format);/ PixelFormat.Format32bppPArgb);/ bmpData.PixelFormat = PixelFormat.Format24bppRgb;IntPtr scan0 = bmpData.Scan0;int len = bmpobj.Width * bmpobj.Height;int pixels = new intlen;Marshal.Copy(scan0, pixels, 0, len);/对图片进行处理int GrayValue = 0;for (int i = 0; i / 得到有效图形并调整为可平均分割的大小/ / 灰度背景分界值/ 有效字符
5、数/ public void GetPicValidByValue(int dgGrayValue, int CharsCount)int posx1 = bmpobj.Width; int posy1 = bmpobj.Height;int posx2 = 0; int posy2 = 0;for (int i = 0; i j) posx1 = j;if (posy1 i) posy1 = i;if (posx2 leftSpan)posx1 = posx1 - leftSpan;if (posx2 + Span - leftSpan / 得到有效图形,图形为类变量/ / 灰度背景分界值/
6、 有效字符数/ public void GetPicValidByValue(int dgGrayValue)int posx1 = bmpobj.Width; int posy1 = bmpobj.Height;int posx2 = 0; int posy2 = 0;for (int i = 0; i j) posx1 = j;if (posy1 i) posy1 = i;if (posx2 / 得到有效图形,图形由外面传入/ / 灰度背景分界值/ 有效字符数/ public Bitmap GetPicValidByValue(Bitmap singlepic, int dgGrayVal
7、ue)int posx1 = singlepic.Width; int posy1 = singlepic.Height;int posx2 = 0; int posy2 = 0;for (int i = 0; i j) posx1 = j;if (posy1 i) posy1 = i;if (posx2 / 平均分割图片/ / 水平上分割数/ 垂直上分割数/ 分割好的图片数组public Bitmap GetSplitPics(int RowNum,int ColNum)if (RowNum = 0 | ColNum = 0)return null;int singW = bmpobj.Wi
8、dth / RowNum;int singH = bmpobj.Height / ColNum;Bitmap PicArray=new BitmapRowNum*ColNum;Rectangle cloneRect;for (int i = 0; i / 返回灰度图片的点阵描述字串，1 表示灰点，0 表示背景/ / 灰度图/ 背前景灰色界限/ public string GetSingleBmpCode(Bitmap singlepic, int dgGrayValue)Color piexl;string code = “;for (int posy = 0; posy singlepic.Height; posy+)for (int posx = 0; posx singlepic.Width; posx+)piexl = singlepic.GetPixel(posx, posy);if (piexl.R dgGrayValue) / Color.Black )code = code + “1“;elsecode = code + “0“;return code;
