360Buy 京东商城商品价格图片识别 火车头采集京东商城图片价格识别

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Drawing;

using System.IO;

namespace ConsoleApplication1

{

class MyImage

{

//需要进行分析的图片

private Bitmap bmpobj;

//需要继承并且重写的数字比对串，在子类里面需要用到这个去比对数字

public Dictionary<string, char> numDic = new Dictionary<string, char>();

//得到图片中某一点的灰度数值

private int GetGrayNumColor(System.Drawing.Color posClr)

{

return (posClr.R * 19595 + posClr.G * 38469 + posClr.B * 7472) >> 16;

}

//进行灰度处理

private void GrayByPixels()

{

for (int i = 0; i < bmpobj.Height; i++)

{

for (int j = 0; j < bmpobj.Width; j++)

{

int tmpValue = GetGrayNumColor(bmpobj.GetPixel(j, i));

bmpobj.SetPixel(j, i, Color.FromArgb(tmpValue, tmpValue, tmpValue));

}

}

}

//得到一个图片的01代码序列

private 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";

else

code = code + "0";

} return code;

}

//从一个图片里面得到几个分开的数字小图片

private Bitmap[] GetPicValidByValue(int dgGrayValue)

{

List<Bitmap> PicList = new List<Bitmap>();

Rectangle cloneRect;

int posx1 = bmpobj.Width, posy1 = bmpobj.Height, posx2 = 0, posy2 = 0;

bool cut = false;

int last = -1, lastx = 0;

for (int j = 0; j < bmpobj.Width; j++) //找有效区

{

cut = false;

for (int i = 0; i < bmpobj.Height; i++)

{

int pixelValue = bmpobj.GetPixel(j, i).R;

if (pixelValue < dgGrayValue) //根据灰度值

{

if (posx1 > j) posx1 = j;

if (posy1 > i) posy1 = i;

if (posx2 < j) posx2 = j;

if (posy2 < i) posy2 = i;

cut = true;

}

};

if (cut)

continue;

if (last + 1 == j)

{

last++;

continue;

}

cloneRect = new Rectangle(posx1, posy1, posx2 - posx1 + 1, posy2 - posy1 + 1);

lastx = j;

last = j;

posx1 = bmpobj.Width;

posy1 = bmpobj.Height;

posx2 = 0;

posy2 = 0;

PicList.Add(bmpobj.Clone(cloneRect, bmpobj.PixelFormat));//复制小块图

};

return PicList.ToArray();

}

//得到一个图片的数字串

private string GetPicNumber()

{

GrayByPixels(); //灰度处理

Bitmap[] pics = GetPicValidByValue(128); //得到有效值

StringBuilder sb = new StringBuilder();

char c;

for (int i = 0; i < pics.Length; ++i)

{

string code = GetSingleBmpCode(pics[i], 128); //得到代码串

if (numDic.TryGetValue(code, out c))

{

sb.Append(c);

}

}

return sb.ToString();

}

//外部调用，得到一个图片的数字串

public string GetPicNum(Bitmap pic)

{

bmpobj = new Bitmap(pic); //转换为Format32bppRgb

return GetPicNumber();

}

//外部调用，得到一个图片的数字串(重载）

public string GetPicNum(string fileName)

{

bmpobj = new Bitmap(fileName);

return GetPicNumber();

}

//输出在一幅图里面找到的数字，测试或者找到数字比对串时用

private void TestNumber()

{

GrayByPixels(); //灰度处理

Bitmap[] pics = GetPicValidByValue(128); //得到有效值

for (int i = 0; i < pics.Length; ++i)

{

string code = GetSingleBmpCode(pics[i], 128); //得到代码串

Console.WriteLine(i); Console.WriteLine(code);

}

}

//外部调用，输出在一幅图里面找到的数字，测试或者找到数字比对串时用

public void TestNum(Bitmap pic)

{

bmpobj = new Bitmap(pic); //转换为Format32bppRgb

TestNumber();

}

//外部调用，输出在一幅图里面找到的数字，测试或者找到数字比对串时用（重载）

public void TestNum(string fileName)

{

bmpobj = new Bitmap(fileName);

TestNumber();

}

}

class JingdongImage : MyImage

{

public JingdongImage()

{

//numDic.Add("111101111011100110001110100001110100000111000000111000001111100000111000000111100", '￥');

numDic.Add("011110110011110011110011110011110011110011011110", '0');

numDic.Add("01101110011001100110011001101111", '1');

numDic.Add("011110110011000011000110001100011000110000111111", '2');

numDic.Add("011110110011000011001110000011000011110011011110", '3');

numDic.Add("000010000110001110010110100110111111000110000110", '4');

numDic.Add("011111011000011000011110000011000011110011011110", '5');

numDic.Add("001110011000110000111110110011110011110011011110", '6');

numDic.Add("111111000011000110000110001100001100011000011000", '7');

numDic.Add("011110110011110011011110110011110011110011011110", '8');

numDic.Add("011110110011110011110011011111000011000110011100", '9');

numDic.Add("1111", '.');

}

}

class Program

{

static void Main(string[] args)

{

DirectoryInfo dInfo = new DirectoryInfo(@"D:/Images");

JingdongImage test = new JingdongImage();

foreach (var file in dInfo.GetFiles())

{

Console.WriteLine(file.FullName);

Console.WriteLine(test.GetPicNum(file.FullName));

}

Console.ReadLine();

}

}

}