QQ验证码识别源代码（C#/NET1.1）


using System;

namespace QQ
{
/// <summary>
/// yzm 的摘要说明。
/// </summary>
public class yzm
{
public yzm(public System.Drawing.Bitmap pic)
{
this.bp = pic;
}
/// <summary>
/// 将一个int值存入到4个字节的字节数组(从高地址开始转换，最高地址的值以无符号整型参与"与运算")
/// </summary>
/// <param name="thevalue">要处理的int值</param>
/// <param name="thebuff">存放信息的字符数组</param>
public static void getbytesfromint(int thevalue, byte[] thebuff)
{
long v1=0; long v2=0; long v3=0; long v4=0;
uint b1=(uint)4278190080; uint b2=(uint)16711680; uint b3=(uint)65280; uint b4=(uint)255;
v1=thevalue & b1;
v2=thevalue & b2;
v3=thevalue & b3;
v4=thevalue & b4;
thebuff[0]=(byte)(v1>>24);
thebuff[1]=(byte)(v2>>16);
thebuff[2]=(byte)(v3>>8);
thebuff[3]=(byte)v4;
}
/// <summary>
/// 将一个ushort值存入到2个字节的字节数组(从高地址开始转换，最高地址的值以无符号整型参与"与运算")
/// </summary>
/// <param name="thevalue">要处理的ushort值</param>
/// <param name="thebuff">存放信息的字符数组</param>
public static void getbytesfromushort(ushort thevalue, byte[] thebuff)
{
ushort v1=0; ushort v2=0;
ushort b1=(ushort)65280; ushort b2=(ushort)255;
v1=(ushort)(thevalue & b1);
v2=(ushort)(thevalue & b2);
thebuff[0]=(byte)(v1>>8);
thebuff[1]=(byte)(v2);
}
/// <summary>
/// 将4个字节的字节数组转换成一个int值
/// </summary>
/// <param name="thebuff">字符数组</param>
/// <returns></returns>
public static int getintfrombyte(byte[] thebuff)
{
int jieguo=0;
long mid=0;
long m1=0; long m2=0; long m3=0; long m4=0;
m1=(thebuff[0]<<24);
m2=(thebuff[1]<<16);
m3=(thebuff[2]<<8);
m4=thebuff[3];
mid=m1+m2+m3+m4;
jieguo=(int)mid;
return jieguo;
}
/// <summary>
/// 将2个字节的字节数组转换成一个ushort值
/// </summary>
/// <param name="thebuff">字符数组</param>
/// <returns></returns>
public static ushort getushortfrombyte(byte[] thebuff)
{
int jieguo1=0;
jieguo1=(thebuff[0]<<8)+thebuff[1];
ushort jieguo=(ushort)jieguo1;
return jieguo;
}
/// <summary>
/// 将内存中的数据写入硬盘（保存特征库）
/// </summary>
/// <param name="thefile">保存的位置</param>
public static void writetofile(string thefile)
{
System.IO.FileStream fs = new System.IO.FileStream(thefile,System.IO.FileMode.OpenOrCreate,System.IO.FileAccess.ReadWrite);
byte[] buff0=new byte[4];
getbytesfromint(datanum,buff0);
fs.Write(buff0,0,4);
for(int ii=0;ii<datanum;ii++)
{
for(int jj=0;jj<20;jj++)
{
byte[] buff=new byte[2];
getbytesfromushort(datap[ii,jj],buff);
fs.Write(buff,0,2);
}
fs.WriteByte(dataxy[ii,0]);
fs.WriteByte(dataxy[ii,1]);
fs.WriteByte(datachar[ii]);
}
fs.Close();
}
/// <summary>
/// 从文件中读取信息，并保存在内存中相应的位置
/// </summary>
/// <param name="thefile">特征库文件</param>
public static void readfromfile(string thefile)
{
int allnum=0;
byte[] buff=new byte[4];
System.IO.FileStream fs = new System.IO.FileStream(thefile,System.IO.FileMode.Open,System.IO.FileAccess.Read);
fs.Read(buff,0,4);
allnum=getintfrombyte(buff);
byte[] buff0=new byte[2];
for(int ii=0;ii<allnum;ii++)
{
for(int jj=0;jj<20;jj++)
{
fs.Read(buff0,0,2);
datap[ii,jj]=getushortfrombyte(buff0);
}
fs.Read(buff0,0,1);
dataxy[ii,0]=buff0[0];
fs.Read(buff0,0,1);
dataxy[ii,1]=buff0[0];
fs.Read(buff0,0,1);
datachar[ii]=buff0[0];
}
datanum=allnum;
fs.Close();
}
/// <summary>
/// 验证码图片
/// </summary&g