破解校内的图片识别码。

 

using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;

namespace XiaoNei.VerifyImage
...{
    public static class Verify
    ...{
        private static int[,] imageDatas;
        private static String code;
        private static Bitmap image;

        /**//**//**//// <summary>
        /// 获取验证码
        /// </summary>
        /// <param name="filename">输入文件名</param>
        /// <returns>验证码</returns>
       
        public static String getCode(String filename)      
        ...{
            Bitmap image = new Bitmap(filename);
            readDatas(image);
            code = "" + getBestCode(getSimple(3, 5)) +
                    getBestCode(getSimple(3, 13)) +
                    getBestCode(getSimple(3, 21)) +
                    getBestCode(getSimple(3, 29));
            Console.WriteLine(code);

            //测试识别是否正确，文件名中含有验证码
            //if (filename.IndexOf(code) < 0)
               // Console.WriteLine("Error");
            return code;
        }

        /**//**//**//// <summary>
        /// 初始化数据
        /// </summary>
        private static void readDatas(Bitmap image)
        ...{

            imageDatas = new int[image.Height, image.Width];
            Color pixelColor;
            for (int h = 0; h < image.Height; h++)
            ...{
                for (int w = 0; w < image.Width; w++)
                ...{
                    pixelColor = image.GetPixel(w, h);

                    imageDatas[h, w] = pixelColor.R > 0 ? 1 : 0;
                }//for
            }//for
        }
        /**//**//**//// <summary>
        /// 取数字块
        /// </summary>
        /// <param name="x">横坐标</param>
        /// <param name="y">纵坐标</param>
        /// <returns>一维数组</returns>
        private static int[] getSimple(int x, int y)
        ...{
            int[] simple = new int[9 * 6];
            int count = 0;
            for (int h = x; h < x + 9; h++)
            ...{
                for (int w = y; w < y + 6; w++)
                ...{
                    simple[count++] = imageDatas[h, w];
                }
            }
            return simple;
        }
        /**//**//**//// <summary>
        /// 最和谐的数字
        /// </summary>
        /// <param name="x">数字块</param>
        /// <returns>结果</returns>
        private static int getBestCode(int[] x)
        ...{
            int bestNumber = -1;
            double bestVal = 0.0;
            for (int index = 0; index < 10; index++)
            ...{
                double val = compareSimple(NumberData.getNumber(index), x);
                if (bestVal <= val)
                ...{
                    bestVal = val;
                    bestNumber = index;
                }
            }
            return bestNumber;
        }
        /**//**//**//// <summary>
        /// 获取两个数字图像数组的和谐百分比
        /// </summary>
        /// <param name="t">匹配数字数组</param>
        /// <param name="x">待匹配数字数组</param>
        /// <returns>和谐百分比</returns>
        private static double compareSimple(int[] t, int[] x)
        ...{
            int count = 0;
            int val = 0;
            for (int i = 0; i < t.Length; i++)
            ...{
                if (1 == t[i])
                ...{
                    count++;
                    if (1 == x[i])
                    ...{
                        val++;
                    }
                }
            }
            return (val + 0.0) / count;
        }
    }


}

最近在做一个校内刷人气的小工具，顺便把图像识别搞了一下。 把源代码贴出来。请高手指教。

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Net; 
using System.IO;
using System.Text;

namespace XiaoNei.VerifyImage
...{
   public  class DownLoadImage
    ...{
        /**//// <summary>
        /// 从图片地址下载图片到本地磁盘
        /// </summary>
        /// <param name="ToLocalPath">图片本地磁盘地址</param>
        /// <param name="Url">图片网址</param>
        /// <returns></returns>
        public static bool SavePhotoFromUrl(string FileName, string Url)
        ...{
            bool Value = false;
            WebResponse response = null;
            Stream stream = null;

            try
            ...{
                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url);

                response = request.GetResponse();
                stream = response.GetResponseStream();

                if (!response.ContentType.ToLower().StartsWith("text/"))
                ...{
                    Value = SaveBinaryFile(response, FileName);

                }

            }
            catch (Exception err)
            ...{
                string aa = err.ToString();
            }
            return Value;
        }
        /**//// <summary>
        /// Save a binary file to disk.
        /// </summary>
        /// <param name="response">The response used to save the file</param>
        // 将二进制文件保存到磁盘
        private static bool SaveBinaryFile(WebResponse response, string FileName)
        ...{
            bool Value = true;
            byte[] buffer = new byte[1024];

            try
            ...{
                if (File.Exists(FileName))
                    File.Delete(FileName);
                Stream outStream = System.IO.File.Create(FileName);
                Stream inStream = response.GetResponseStream();

                int l;
                do
                ...{
                    l = inStream.Read(buffer, 0, buffer.Length);
                    if (l > 0)
                        outStream.Write(buffer, 0, l);
                }
                while (l > 0);

                outStream.Close();
                inStream.Close();
            }
            catch
            ...{
                Value = false;
            }
            return Value;
        }


    }
}

 

 

using System;
using System.Collections.Generic;
using System.Text;

namespace XiaoNei.VerifyImage
...{
    public class NumberData
    ...{

        public static int[] getNumber(int n)
        ...{
            switch (n)
            ...{
                case 0: ...{ return num0; }
                case 1: ...{ return num1; }
                case 2: ...{ return num2; }
                case 3: ...{ return num3; }
                case 4: ...{ return num4; }
                case 5: ...{ return num5; }
                case 6: ...{ return num6; }
                case 7: ...{ return num7; }
                case 8: ...{ return num8; }
                case 9: ...{ return num9; }
                default: ...{ return num0; }
            }
        }




        public static int[] num0 = ...{
        0,0,1,1,0,0,
        0,1,0,0,1,0,
        1,0,0,0,0,1,
        1,0,0,0,0,1,
        1,0,0,0,0,1,
        1,0,0,0,0,1,
        1,0,0,0,0,1,
        0,1,0,0,1,0,
        0,0,1,1,0,0
    };

        public static int[] num1 = ...{
        0,0,1,1,0,0,
        0,1,0,1,0,0,
        0,0,0,1,0,0,
        0,0,0,1,0,0,
        0,0,0,1,0,0,
        0,0,0,1,0,0,
        0,0,0,1,0,0,
        0,0,0,1,0,0,
        0,1,1,1,1,1
    };

        public static int[] num2 = ...{
        1,1,1,1,0,0,
        0,0,0,0,1,0,
        0,0,0,0,1,0,
        0,0,0,0,1,0,
        0,0,0,1,0,0,
        0,0,1,0,0,0,
        0,1,0,0,0,0,
        1,0,0,0,0,0,
        1,1,1,1,1,0
    };

        public static int[] num3 = ...{
        1,1,1,1,0,0,
        0,0,0,0,1,0,
        0,0,0,0,1,0,
        0,0,0,1,0,0,
        0,1,1,0,0,0,
        0,0,0,1,0,0,
        0,0,0,0,1,0,
        0,0,0,0,1,0,
        0,1,1,1,0,0
    };

        public static int[] num4 = ...{
        0,0,0,0,1,0,
        0,0,0,1,1,0,
        0,0,1,0,1,0,
        0,1,0,0,1,0,
        1,0,0,0,1,0,
        1,1,1,1,1,1,
        0,0,0,0,1,0,
        0,0,0,0,1,0,
        0,0,0,0,1,0
    };

        public static int[] num5 = ...{
        1,1,1,1,1,0,
        1,0,0,0,0,0,
        1,0,0,0,0,0,
        1,1,1,0,0,0,
        0,0,0,1,0,0,
        0,0,0,0,1,0,
        0,0,0,0,1,0,
        0,0,0,1,0,0,
        1,1,1,0,0,0
    };
        public static int[] num6 = ...{
        0,0,1,1,1,1,
        0,1,0,0,0,0,
        1,0,0,0,0,0,
        1,0,1,1,0,0,
        1,1,0,0,1,0,
        1,0,0,0,0,1,
        1,0,0,0,0,1,
        0,1,0,0,1,0,
        0,0,1,1,0,0
    };
        public static int[] num7 = ...{
        1,1,1,1,1,1,
        0,0,0,0,0,1,
        0,0,0,0,1,0,
        0,0,0,1,0,0,
        0,0,0,1,0,0,
        0,0,1,0,0,0,
        0,0,1,0,0,0,
        0,1,0,0,0,0,
        0,1,0,0,0,0
    };

        public static int[] num8 = ...{
        0,1,1,1,1,0,
        1,0,0,0,0,1,
        1,0,0,0,0,1,
        0,1,0,0,1,0,
        0,1,1,1,1,0,
        1,0,0,0,0,1,
        1,0,0,0,0,1,
        1,0,0,0,0,1,
        0,1,1,1,1,0
    };

        public static int[] num9 = ...{
        0,0,1,1,0,0,
        0,1,0,0,1,0,
        1,0,0,0,0,1,
        1,0,0,0,0,1,
        0,1,0,0,1,1,
        0,0,1,1,0,1,
        0,0,0,0,0,1,
        0,0,0,0,1,0,
        1,1,1,1,0,0
    };

    }

}