C#实现按键精灵的'找图' '找色' '找字'的功能

http://www.cnblogs.com/JimmyBright/p/4355862.html

背景：游戏辅助功能通常使用按键精灵编写脚本，按键精灵的最大卖点就是能够找到画面中字，图，色，这对于模拟用户鼠标操作至关重要，这能找到道具，找到血量，实现自动打怪，自动补血，自动买卖道具，博主闲来无聊，看到一款按键精灵实现的辅助，于是乎想用WPF也写一款辅助工具，实现其核心的找图找色等功能。博主测试，对于背景复杂多变的画面，找不变图的成功率达到100%，找带透明的图，比如文字，能达到90%以上。默认您已经知道一个颜色值由argb构成，每个值范围都是0~255。网上发现不少人询问过该问题，几乎没有比较全面的解答，今天本博主自己写了这些功能的代码，C#同学们，以后可以用这几个函数实现你的游戏辅助了哦(⊙o⊙)

找色：

/// <summary>

/// 找颜色

/// </summary>

/// <param name="parPic">查找的图片的绝对路径</param>

/// <param name="searchColor">查找的16进制颜色值，如#0C5FAB</param>

/// <param name="searchRect">查找的矩形区域范围内</param>

/// <param name="errorRange">容错</param>

/// <returns></returns>

System.Drawing.Point FindColor(string parPic, string searchColor, System.Drawing.Rectangle searchRect, byte errorRange = 10)

{

var colorX = System.Drawing.ColorTranslator.FromHtml(searchColor);

var parBitmap = new Bitmap(parPic);

var parData = parBitmap.LockBits(new System.Drawing.Rectangle(0, 0, parBitmap.Width, parBitmap.Height), ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);

var byteArraryPar = new byte[parData.Stride * parData.Height];

Marshal.Copy(parData.Scan0, byteArraryPar, 0, parData.Stride * parData.Height);

if (searchRect.IsEmpty)

{

searchRect = new System.Drawing.Rectangle(0, 0, parBitmap.Width, parBitmap.Height);

}

var searchLeftTop = searchRect.Location;

var searchSize = searchRect.Size;

var iMax = searchLeftTop.Y + searchSize.Height;//行

var jMax = searchLeftTop.X + searchSize.Width;//列

int pointX = -1; int pointY = -1;

for (int m = searchRect.Y; m < iMax; m++)

{

for (int n = searchRect.X; n < jMax; n++)

{

int index = m * parBitmap.Width * 4 + n * 4;

var color = System.Drawing.Color.FromArgb(byteArraryPar[index + 3], byteArraryPar[index + 2], byteArraryPar[index + 1], byteArraryPar[index]);

if (ColorAEqualColorB(color, colorX, errorRange))

{

pointX = n;

pointY = m;

goto END;

}

END:

parBitmap.UnlockBits(parData);

return new System.Drawing.Point(pointX, pointY);

}

#endregion

方法中的容错范围，默认设置为10。R、G、B三者的范围都是0~255，容错为10，就表示每个范围都可以在10上下波动，下面还会有容错的概念

找图：

在一张大图中截取一个矩形小图，然后在任意包含该小图的图片中找到该小图的坐标位置

#region 找图

/// <summary>

/// 查找图片，不能镂空

/// </summary>

/// <param name="subPic"></param>

/// <param name="parPic"></param>

/// <param name="searchRect">如果为empty，则默认查找整个图像</param>

/// <param name="errorRange">容错，单个色值范围内视为正确0~255</param>

/// <param name="matchRate">图片匹配度，默认90%</param>

/// <param name="isFindAll">是否查找所有相似的图片</param>

/// <returns>返回查找到的图片的中心点坐标</returns>

List<System.Drawing.Point> FindPicture(string subPic, string parPic, System.Drawing.Rectangle searchRect, byte errorRange, double matchRate = 0.9, bool isFindAll = false)

{

List<System.Drawing.Point> ListPoint = new List<System.Drawing.Point>();

var subBitmap = new Bitmap(subPic);

var parBitmap = new Bitmap(parPic);

int subWidth = subBitmap.Width;

int subHeight = subBitmap.Height;

int parWidth = parBitmap.Width;

int parHeight = parBitmap.Height;

if (searchRect.IsEmpty)

{

searchRect = new System.Drawing.Rectangle(0, 0, parBitmap.Width, parBitmap.Height);

}

var searchLeftTop = searchRect.Location;

var searchSize = searchRect.Size;

System.Drawing.Color startPixelColor = subBitmap.GetPixel(0, 0);

var subData = subBitmap.LockBits(new System.Drawing.Rectangle(0, 0, subBitmap.Width, subBitmap.Height), ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);

var parData = parBitmap.LockBits(new System.Drawing.Rectangle(0, 0, parBitmap.Width, parBitmap.Height), ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);

var byteArrarySub = new byte[subData.Stride * subData.Height];

var byteArraryPar = new byte[parData.Stride * parData.Height];

Marshal.Copy(subData.Scan0, byteArrarySub, 0, subData.Stride * subData.Height);

Marshal.Copy(parData.Scan0, byteArraryPar, 0, parData.Stride * parData.Height);

var iMax = searchLeftTop.Y + searchSize.Height - subData.Height;//行

var jMax = searchLeftTop.X + searchSize.Width - subData.Width;//列

int smallOffsetX = 0, smallOffsetY = 0;

int smallStartX = 0, smallStartY = 0;

int pointX = -1; int pointY = -1;

for (int i = searchLeftTop.Y; i < iMax; i++)

{

for (int j = searchLeftTop.X; j < jMax; j++)

{

//大图x，y坐标处的颜色值

int x = j, y = i;

int parIndex = i * parWidth * 4 + j * 4;

var colorBig = System.Drawing.Color.FromArgb(byteArraryPar[parIndex + 3], byteArraryPar[parIndex + 2], byteArraryPar[parIndex + 1], byteArraryPar[parIndex]);

;

if (ColorAEqualColorB(colorBig, startPixelColor, errorRange))

{

smallStartX = x - smallOffsetX;//待找的图X坐标

smallStartY = y - smallOffsetY;//待找的图Y坐标

int sum = 0;//所有需要比对的有效点

int matchNum = 0;//成功匹配的点

for (int m = 0; m < subHeight; m++)

{

for (int n = 0; n < subWidth; n++)

{

int x1 = n, y1 = m;

int subIndex = m * subWidth * 4 + n * 4;

var color = System.Drawing.Color.FromArgb(byteArrarySub[subIndex + 3], byteArrarySub[subIndex + 2], byteArrarySub[subIndex + 1], byteArrarySub[subIndex]);

sum++;

int x2 = smallStartX + x1, y2 = smallStartY + y1;

int parReleativeIndex = y2 * parWidth * 4 + x2 * 4;//比对大图对应的像素点的颜色

var colorPixel = System.Drawing.Color.FromArgb(byteArraryPar[parReleativeIndex + 3], byteArraryPar[parReleativeIndex + 2], byteArraryPar[parReleativeIndex + 1], byteArraryPar[parReleativeIndex]);

if (ColorAEqualColorB(colorPixel, color, errorRange))

{

matchNum++;

}

if ((double)matchNum / sum >= matchRate)

{

Console.WriteLine((double)matchNum / sum);

pointX = smallStartX + (int)(subWidth / 2.0);

pointY = smallStartY + (int)(subHeight / 2.0);

var point = new System.Drawing.Point(pointX, pointY);

if (!ListContainsPoint(ListPoint, point, 10))

{

ListPoint.Add(point);

}

if (!isFindAll)

{

goto FIND_END;

}

//小图x1,y1坐标处的颜色值

}

FIND_END:

subBitmap.UnlockBits(subData);

parBitmap.UnlockBits(parData);

subBitmap.Dispose();

parBitmap.Dispose();

GC.Collect();

return ListPoint;

}

#endregion

找字：

找字比较困难了呢，因为文字是一种镂空的图像，不像上述找的是非镂空图像，代码：

定义结构体：

1         struct NumBody
2         {
3             public int num;//数字
4             public int matchNum;//匹配的个数
5             public int matchSum;
6             public double matchRate;//匹配度
7             public System.Drawing.Point point;
8             public List<System.Drawing.Point> bodyCollectionPoint;//该数字所有像素在大图中的坐标
9         }

  1    #region 找字
  2 
  3         /// <summary>
  4         /// 找文字，镂空的图片文字
  5         /// </summary>
  6         /// <param name="subPic"></param>
  7         /// <param name="parPic"></param>
  8         /// <param name="searchRect"></param>
  9         /// <param name="errorRange"></param>
 10         /// <param name="matchRate"></param>
 11         /// <param name="isFindAll"></param>
 12         /// <returns></returns>
 13         List<NumBody> FindText(string subPic, string parPic, System.Drawing.Rectangle searchRect, byte errorRange, double matchRate = 0.9, bool isFindAll = false)
 14         {
 15 
 16             List<NumBody> ListPoint = new List<NumBody>();
 17             var subBitmap = new Bitmap(subPic);
 18             var parBitmap = new Bitmap(parPic);
 19             int subWidth = subBitmap.Width;
 20             int subHeight = subBitmap.Height;
 21             int parWidth = parBitmap.Width;
 22             int parHeight = parBitmap.Height;
 23             var bgColor = subBitmap.GetPixel(0, 0);//背景红色
 24             if (searchRect.IsEmpty)
 25             {
 26                 searchRect = new System.Drawing.Rectangle(0, 0, parBitmap.Width, parBitmap.Height);
 27             }
 28             var searchLeftTop = searchRect.Location;
 29             var searchSize = searchRect.Size;
 30             var subData = subBitmap.LockBits(new System.Drawing.Rectangle(0, 0, subBitmap.Width, subBitmap.Height), ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
 31             var parData = parBitmap.LockBits(new System.Drawing.Rectangle(0, 0, parBitmap.Width, parBitmap.Height), ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
 32             var byteArrarySub = new byte[subData.Stride * subData.Height];
 33             var byteArraryPar = new byte[parData.Stride * parData.Height];
 34             Marshal.Copy(subData.Scan0, byteArrarySub, 0, subData.Stride * subData.Height);
 35             Marshal.Copy(parData.Scan0, byteArraryPar, 0, parData.Stride * parData.Height);
 36             var iMax = searchLeftTop.Y + searchSize.Height - subData.Height;//行
 37             var jMax = searchLeftTop.X + searchSize.Width - subData.Width;//列
 38             System.Drawing.Color startPixelColor = System.Drawing.Color.FromArgb(0, 0, 0);
 39             int smallOffsetX = 0, smallOffsetY = 0;
 40             int smallStartX = 0, smallStartY = 0;
 41             int pointX = -1; int pointY = -1;
 42 
 43 
 44             for (int m = 0; m < subHeight; m++)
 45             {
 46                 for (int n = 0; n < subWidth; n++)
 47                 {
 48                     smallOffsetX = n;
 49                     smallOffsetY = m;
 50                     int subIndex = m * subWidth * 4 + n * 4;
 51                     var color = System.Drawing.Color.FromArgb(byteArrarySub[subIndex + 3], byteArrarySub[subIndex + 2], byteArrarySub[subIndex + 1], byteArrarySub[subIndex]);
 52                     if (!ColorAEqualColorB(color, bgColor, errorRange))
 53                     {
 54                         startPixelColor = color;
 55                         goto END;
 56                     }
 57                 }
 58             }
 59 
 60         END:
 61             for (int i = searchLeftTop.Y; i < iMax; i++)
 62             {
 63                 for (int j = searchLeftTop.X; j < jMax; j++)
 64                 {
 65                     //大图x，y坐标处的颜色值
 66                     int x = j, y = i;
 67                     int parIndex = i * parWidth * 4 + j * 4;
 68                     var colorBig = System.Drawing.Color.FromArgb(byteArraryPar[parIndex + 3], byteArraryPar[parIndex + 2], byteArraryPar[parIndex + 1], byteArraryPar[parIndex]);
 69                     ;
 70 
 71                     List<System.Drawing.Point> myListPoint = new List<System.Drawing.Point>();
 72                     if (ColorAEqualColorB(colorBig, startPixelColor, errorRange))
 73                     {
 74                         smallStartX = x - smallOffsetX;//待找的图X坐标
 75                         smallStartY = y - smallOffsetY;//待找的图Y坐标
 76                         int sum = 0;//所有需要比对的有效点
 77                         int matchNum = 0;//成功匹配的点
 78                         for (int m = 0; m < subHeight; m++)
 79                         {
 80                             for (int n = 0; n < subWidth; n++)
 81                             {
 82                                 int x1 = n, y1 = m;
 83                                 int subIndex = m * subWidth * 4 + n * 4;
 84                                 var color = System.Drawing.Color.FromArgb(byteArrarySub[subIndex + 3], byteArrarySub[subIndex + 2], byteArrarySub[subIndex + 1], byteArrarySub[subIndex]);
 85                                 if (color != bgColor)
 86                                 {
 87                                     sum++;
 88                                     int x2 = smallStartX + x1, y2 = smallStartY + y1;
 89                                     int parReleativeIndex = y2 * parWidth * 4 + x2 * 4;//比对大图对应的像素点的颜色
 90                                     var colorPixel = System.Drawing.Color.FromArgb(byteArraryPar[parReleativeIndex + 3], byteArraryPar[parReleativeIndex + 2], byteArraryPar[parReleativeIndex + 1], byteArraryPar[parReleativeIndex]);
 91                                     if (ColorAEqualColorB(colorPixel, color, errorRange))
 92                                     {
 93                                         matchNum++;
 94                                     }
 95                                     myListPoint.Add(new System.Drawing.Point(x2, y2));
 96                                 }
 97                             }
 98                         }
 99 
100                         double rate = (double)matchNum / sum;
101                         if (rate>= matchRate)
102                         {
103                             Console.WriteLine((double)matchNum / sum);
104                             pointX = smallStartX + (int)(subWidth / 2.0);
105                             pointY = smallStartY + (int)(subHeight / 2.0);
106                             var point = new System.Drawing.Point(pointX, pointY);
107                             if (!ListTextBodyContainsPoint(ListPoint, point, 1))
108                             {
109                                 ListPoint.Add(new NumBody() { point = point, matchNum = matchNum,matchSum=sum, matchRate = rate, bodyCollectionPoint = myListPoint });
110                             }
111                             SearchNumbersByMatchNum(ref ListPoint);
112                             if (!isFindAll)
113                             {
114                                 goto FIND_END;
115                             }
116                         }
117                     }
118                     //小图x1,y1坐标处的颜色值
119                 }
120             }
121         FIND_END:
122             subBitmap.UnlockBits(subData);
123             parBitmap.UnlockBits(parData);
124             subBitmap.Dispose();
125             parBitmap.Dispose();
126             GC.Collect();
127             return ListPoint;
128         }

特别注意：有了这个方法还是不能找到你要的文字的。要先处理文字，下面举例：

例如在这张图片上找到朋友的朋字的坐标位置：

1：打开你的PS，先将图片放大，看到像素方块为止，然后将朋字的范围圈选住，注意稍微比字圈选的大一点，像这样：

2：按住CTRL+C，然后CTRL+N，出现对话框：(教教大家使用PS^_^)

3：将背景内容选择透明，按确定，再按CTRL+V复制图像

4:将这个图片放大到看到像素为止，将所有非字体的位置全部用铅笔工具涂上同一种颜色，

5:涂完了之后将这张图片保存下来，这张图片就是我们要查找的“朋”字，图片是这样的

6：我们需要的就是第五步的图片和第一张底图，下面见证奇迹的时刻到了。

1          string str1 = @"C:\Users\JimmyBright\Desktop\1.png";
2             string str2 = @"C:\Users\JimmyBright\Desktop\2.png";
3             var xx = FindText(str2,str1,new System.Drawing.Rectangle(0, 0, 400, 600),10);

str1是我们的底图，str2是第五步的那张处理后的文字图片，xx就是我们最后需要的文字的位置坐标，我们运行看看。下面截图运行结果：

显然最后我们查找的文字在图片中的坐标为(224,286)，大家可以下载那张图片验证

找数：

　　你以为找到文字就算完了吗？No，找数字才是最困难的，为什么呢？有人会问，数字难道不也是文字吗，不也可以通过PS处理数字达到查找其位置的目的吗？对的，数字也是文字，我们将需要查找的数字0~9全部PS处理，就能查到它们的位置了。但是有一个问题啊，游戏中用数字表示的地方通常是一连串的数字，这些数字里面包含0~9的任意组合。所以我们需要这样处理：

　　我们从0~9依次查找指定区域，记录每次查找的结果，没查到的数字不必记录，对查到结果的数字再按照X坐标排序，因为在X坐标越小，数字越靠左边。

还有一个严重的问题，例如38,14，这样的数字会很讨厌，为什么呢，我们会再8当中查找3，在4当中查找到1，这会对我们的数字识别产生重大误差，所以下面我也写了一个方法对这个问题做了处理，代码：

 1     #region 查找数字
 2         
 3         /// <summary>
 4         /// 在指定区域里面查找数字
 5         /// </summary>
 6         /// <param name="numDic"></param>
 7         /// <param name="parPic"></param>
 8         /// <param name="searchRect"></param>
 9         /// <param name="errorRange"></param>
10         /// <returns></returns>
11         int FindNumbers(Dictionary<int, string> numDic, string parPic, System.Drawing.Rectangle searchRect, byte errorRange=8, double matchRate = 0.9)
12         {
13             //同一个区域找到多个相同的图片
14             List<NumBody> ListBody = new List<NumBody>();
15             foreach (var item in numDic)
16             {
17                 var listPoint = FindText(item.Value, parPic, searchRect, errorRange, matchRate, true);
18                 foreach (var point in listPoint)
19                 {
20                     ListBody.Add(new NumBody() { num = item.Key,matchNum=point.matchNum,matchSum=point.matchSum, matchRate=point.matchRate, point = point.point, bodyCollectionPoint = point.bodyCollectionPoint });
21                 }
22             }
23 
24             SearchNumbersByMatchNum(ref ListBody);
25             var myList = from body in ListBody orderby body.point.X ascending select body;
26             string number = "0";
27             foreach (var item in myList)
28             {
29                 number += item.num;
30             }
31             int num = Int32.Parse(number);
32             return num;
33         }
34        /// <summary>
35        /// 搜索同一个数字的时候，出现重叠的地方，用匹配度去过滤掉匹配度低的
36        /// 比如同样是1，在控制匹配度允许下，一个（83,95）和（84,95）这两个点明显是同一个数字
37        /// 此时谁的匹配度低过滤掉谁
38        /// </summary>
39        /// <param name="ListBody"></param>
40         void SearchNumbersByMatchNum(ref List<NumBody> ListBody)
41         {
42             bool isValid = true;
43             for (int i = 0; i < ListBody.Count; i++)
44             {
45                 var body = ListBody[i];
46                 
47                 for (int j = i; j < ListBody.Count; j++)
48                 {
49 
50                     var bodyX = ListBody[j];
51                     if (!bodyX.Equals(body))
52                     {
53                         int sameNum = 0;
54                         foreach (var item in body.bodyCollectionPoint)
55                         {
56                             if (bodyX.bodyCollectionPoint.Contains(item))
57                             {
58                                 sameNum++;
59                             }
60                         }
61                         if (sameNum >= 1)//有1个以上点重合，表面图像重叠，删除像素点数少的图像
62                         {
63                             isValid = false;
64 
65                             //如果某个数字100%匹配，那就不用比较了，这个数字肯定是对的
66                             double maxRate = 1;
67                             if (bodyX.matchRate >= maxRate)
68                             {
69                                 ListBody.Remove(body);
70                             }
71                             else if (body.matchRate>=maxRate)
72                             {
73                                 ListBody.Remove(bodyX);
74                             }
75                             else
76                             {
77                                 if (bodyX.matchNum >= body.matchNum)//图像包含的所有像素个数
78                                 {
79                                     ListBody.Remove(body);
80                                 }
81                                 else
82                                 {
83                                     ListBody.Remove(bodyX);
84                                 }
85                             }
86                             SearchNumbersByMatchNum(ref ListBody);
87                         }
88                     }
89                 }
90             }
91             if (isValid)
92             {
93                 return;
94             }
95         }
96 
97         #endregion

其他方法：

 1    bool ColorAEqualColorB(System.Drawing.Color colorA, System.Drawing.Color colorB, byte errorRange = 10)
 2         {
 3             return colorA.A <= colorB.A + errorRange && colorA.A >= colorB.A - errorRange &&
 4                 colorA.R <= colorB.R + errorRange && colorA.R >= colorB.R - errorRange &&
 5                 colorA.G <= colorB.G + errorRange && colorA.G >= colorB.G - errorRange &&
 6                 colorA.B <= colorB.B + errorRange && colorA.B >= colorB.B - errorRange;
 7           
 8         }
 9         bool ListContainsPoint(List<System.Drawing.Point> listPoint, System.Drawing.Point point, double errorRange = 10)
10         {
11             bool isExist = false;
12             foreach (var item in listPoint)
13             {
14                 if (item.X <= point.X + errorRange && item.X >= point.X - errorRange && item.Y <= point.Y + errorRange && item.Y >= point.Y - errorRange)
15                 {
16                     isExist = true;
17                 }
18             }
19             return isExist;
20         }
21         bool ListTextBodyContainsPoint(List<NumBody> listPoint, System.Drawing.Point point, double errorRange = 10)
22         {
23             bool isExist = false;
24             foreach (var item in listPoint)
25             {
26 
27                 if (item.point.X <= point.X + errorRange && item.point.X >= point.X - errorRange && item.point.Y <= point.Y + errorRange && item.point.Y >= point.Y - errorRange)
28                 {
29                     isExist = true;
30                 }
31             }
32             return isExist;
33         }

结束语：以上代码本人实现了找颜色，找图片，找文字，找数字的所有功能，希望对朋友们能有所帮助。

null

posted @ 2017-09-25 19:16 随梦而飞阅读(1782) 评论(0) 编辑收藏举报

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