using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Drawing;using System.Drawing.Drawing2D;namespace FaceSmile{ class FaceClass {  /// <summary>  /// 左臉對稱函數  /// </summary>  /// <param name="a"></param>  /// <returns></returns>  public static Bitmap FaceFlipLeft(Bitmap a)  {   Rectangle rect = new Rectangle(0, 0, a.Width, a.Height);   System.Drawing.Imaging.BitmapData srcData = a.LockBits(rect, System.Drawing.Imaging.ImageLockMode.ReadWrite, a.PixelFormat);   IntPtr ptr = srcData.Scan0;   int bytes = 0;   bytes = srcData.Stride * a.Height;   byte[] grayValues = new byte[bytes];   System.Runtime.InteropServices.Marshal.Copy(ptr, grayValues, 0, bytes);   byte[] temp = new byte[bytes];   temp = (byte[])grayValues.Clone();   for (int j = 0; j < a.Height; j++)   {    for (int i = 0; i < (int)(a.Width/2); i++)    {     temp[(a.Width - 2 - i) * 3 + j * srcData.Stride] = temp[i * 3 + j * srcData.Stride];     temp[(a.Width - 2 - i) * 3 + 1 + j * srcData.Stride] = temp[i * 3 + 1 + j * srcData.Stride];     temp[(a.Width - 2 - i) * 3 + 2 + j * srcData.Stride] = temp[i * 3 + 2 + j * srcData.Stride];    }   }   grayValues = (byte[])temp.Clone();    System.Runtime.InteropServices.Marshal.Copy(grayValues, 0, ptr, bytes);   a.UnlockBits(srcData);   return a;  }  /// <summary>  /// 右臉對稱函數  /// </summary>  /// <param name="a"></param>  /// <returns></returns>  public static Bitmap FaceFlipRight(Bitmap a)  {   Rectangle rect = new Rectangle(0, 0, a.Width, a.Height);   System.Drawing.Imaging.BitmapData srcData = a.LockBits(rect, System.Drawing.Imaging.ImageLockMode.ReadWrite, a.PixelFormat);   IntPtr ptr = srcData.Scan0;   int bytes = 0;   bytes = srcData.Stride * a.Height;   byte[] grayValues = new byte[bytes];   System.Runtime.InteropServices.Marshal.Copy(ptr, grayValues, 0, bytes);   byte[] temp = new byte[bytes];   temp = (byte[])grayValues.Clone();   for (int j = 0; j < a.Height; j++)   {    for (int i = 0; i < (int)(a.Width / 2); i++)    {     temp[i * 3 + j * srcData.Stride] = temp[(a.Width - 2 - i) * 3 + j * srcData.Stride];     temp[i * 3 + 1 + j * srcData.Stride] = temp[(a.Width - 2 - i) * 3 + 1 + j * srcData.Stride];     temp[i * 3 + 2 + j * srcData.Stride] = temp[(a.Width - 2 - i) * 3 + 2 + j * srcData.Stride];    }   }   grayValues = (byte[])temp.Clone();   System.Runtime.InteropServices.Marshal.Copy(grayValues, 0, ptr, bytes);   a.UnlockBits(srcData);   return a;  }  /// <summary>  /// 定義膚色檢測函數  /// </summary>  /// <param name="a"></param>  /// <returns></returns>  public static Bitmap SkinDetect(Bitmap a)  {   Rectangle rect = new Rectangle(0, 0, a.Width, a.Height);   System.Drawing.Imaging.BitmapData bmpData = a.LockBits(rect, System.Drawing.Imaging.ImageLockMode.ReadWrite, System.Drawing.Imaging.PixelFormat.Format24bppRgb);   int stride = bmpData.Stride;   unsafe   {    byte* pIn = (byte*)bmpData.Scan0.ToPointer();    byte* P;    int R, G, B;    double r, g, Fupr, Flor, Wrg;    for (int y = 0; y < a.Height; y++)    {     for (int x = 0; x < a.Width; x++)     {      P = pIn;      B = P[0];      G = P[1];      R = P[2];      if (R + G + B == 0)      {       r = 0;       g = 0;      }      else      {       r = (R / (R + G + B));       g = (G / (R + G + B));      }      Fupr = (1.0743 * r + 0.1452 - 1.3767 * r * r);      Flor = (0.5601 * r + 0.1766 - 0.776 * r * r);      Wrg = (r - 0.33) * (r - 0.33) + (g - 0.33) * (g - 0.33);      if ((R - G >= 45) && ((R > G) && (G > B)) && (Fupr > g) && (Wrg >= 0.0004))      {       P[0] = (byte)B;       P[1] = (byte)G;       P[2] = (byte)R;      }      else      {       P[0] = 0;       P[1] = 0;       P[2] = 0;      }      pIn += 3;     }     pIn += stride - a.Width * 3;    }   }   a.UnlockBits(bmpData);   return a;  }  /// <summary>  /// 定義圖像灰度化函數  /// </summary>  /// <param name="src"></param>  /// <returns></returns>  public static Bitmap ImageGray(Bitmap src)  {   int w = src.Width;   int h = src.Height;   //構建與原圖像大小一樣的模版圖像   Bitmap dstBitmap = new Bitmap(src.Width, src.Height, System.Drawing.Imaging.PixelFormat.Format24bppRgb);   //將原圖像存入內存   System.Drawing.Imaging.BitmapData srcData = src.LockBits(new Rectangle(0, 0, w, h), System.Drawing.Imaging.ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format24bppRgb);   System.Drawing.Imaging.BitmapData dstData = dstBitmap.LockBits(new Rectangle(0, 0, w, h), System.Drawing.Imaging.ImageLockMode.WriteOnly, System.Drawing.Imaging.PixelFormat.Format24bppRgb);   unsafe   {    byte* pIn = (byte*)srcData.Scan0.ToPointer();    byte* pOut = (byte*)dstData.Scan0.ToPointer();    byte* p;    int stride = srcData.Stride;    int r, g, b;    for (int y = 0; y < h; y++)    {     for (int x = 0; x < w; x++)     {      p = pIn;      r = p[2];      g = p[1];      b = p[0];      //調用圖像灰度化公式      pOut[0] = pOut[1] = pOut[2] = (byte)(b * 0.114 + g * 0.587 + r * 0.299);      pIn += 3;      pOut += 3;     }     pIn += srcData.Stride - w * 3;     pOut += srcData.Stride - w * 3;    }    src.UnlockBits(srcData);    dstBitmap.UnlockBits(dstData);    return dstBitmap;   }  } }}

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Drawing;using System.Drawing.Drawing2D;namespace FaceSmile{ class SameRatioClass {  /// <summary>  /// 左右臉相似度函數  /// </summary>  /// <param name="src"></param>  /// <param name="dst"></param>  /// <returns></returns>  public static double SameRatio(Bitmap src, Bitmap dst)  {   byte[] srcData = GetBytes(src);   byte[] dstData = GetBytes(dst);   double ratio = 0;   int sum = 0;   int std=0;   for (int i = 0; i < srcData.Length; i++)   {    sum += Math.Abs(srcData[i] - dstData[i]);    std += srcData[i];   }   ratio = 100-(double)(100*sum / std);   return ratio;  }  /// <summary>  /// 得到圖像信息函數  /// </summary>  /// <param name="src"></param>  /// <returns></returns>  private static byte[] GetBytes(Bitmap src)  {   int w = src.Width;   int h = src.Height;   byte[] dataImage = new byte[w * h];   System.Drawing.Imaging.BitmapData srcData = src.LockBits(new Rectangle(0, 0, w, h), System.Drawing.Imaging.ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format24bppRgb);      unsafe   {    byte* pIn = (byte*)srcData.Scan0.ToPointer();        byte* p;    int stride = srcData.Stride;    int r, g, b;    for (int y = 0; y < h; y++)    {     for (int x = 0; x < w; x++)     {      p = pIn;      r = p[2];      g = p[1];      b = p[0];      dataImage[x + y * x] = (byte)((r + g + b) / 3);      pIn += 3;           }     pIn += srcData.Stride - w * 3;         }    src.UnlockBits(srcData);    return dataImage;   }  } }}

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;namespace FaceSmile{ public partial class Form1 : Form {  public Form1()  {   InitializeComponent();   groupBox1.Visible = true;   groupBox2.Visible = false;  }  #region 全局變量定義  //定義原始圖像變量  private Bitmap src ;  //定義圖像相似度變量  private double ratio = 0;  //定義圖像路徑變量  private string curFileName;  //定義人臉位置圖像調整變量  private int numAdjust = 0;  #endregion  #region 軟件操作  //左臉對稱  private void button1_Click(object sender, EventArgs e)  {   if (src != null)   {    Bitmap temp = (Bitmap)src.Clone();    Bitmap a = FaceClass.FaceFlipLeft(temp);    pictureBox1.Image = (Image)a;    ratio = SameRatioClass.SameRatio(a, src);    label1.Text = ratio.ToString();   }   else   {    MessageBox.Show("Please open one image!");   }  }  //右臉對稱  private void button2_Click(object sender, EventArgs e)  {   if (src != null)   {    Bitmap temp = (Bitmap)src.Clone();    Bitmap a = FaceClass.FaceFlipRight(temp);    pictureBox1.Image = (Image)a;    ratio = SameRatioClass.SameRatio(a, src);    label1.Text = ratio.ToString();   }   else   {    MessageBox.Show("Please open one image!");   }  }  //打開圖像  private void button3_Click(object sender, EventArgs e)  {   OpenImage();   if (src != null)   {    pictureBox1.Image = (Image)src;    pictureBox1.Width = src.Width;    pictureBox1.Height = src.Height;   }   else   {    MessageBox.Show("Please open one image!");   }  }  //保存圖像  private void button4_Click(object sender, EventArgs e)  {   SaveImage();  }  //圖像打開函數  private void OpenImage()  {   try   {    ofd.Filter = "All files (*.*)|*.*|bmp files (*.bmp)|*.bmp|jpeg files (*.jpg)|*.jpg|png files (*.png)|*.png";    ofd.Title = "打開";    ofd.ShowHelp = true;    if (ofd.ShowDialog() == DialogResult.OK)    {     curFileName = ofd.FileName;     src = new Bitmap(curFileName);    }   }   catch (Exception ex)   {    MessageBox.Show(ex.Message);   }  }  //圖像保存函數  private void SaveImage()  {   try   {    sfd.Filter = "保存(*.bmp)|*.bmp";    sfd.Title = "保存";    sfd.ShowHelp = true;    if (sfd.ShowDialog() == DialogResult.OK)    {     Bitmap temp = (Bitmap)pictureBox1.Image;     temp.Save(sfd.FileName, System.Drawing.Imaging.ImageFormat.Bmp);    }   }   catch (Exception ex)   {    MessageBox.Show(ex.Message);   }  }  //其他操作  private void button5_Click(object sender, EventArgs e)  {   groupBox2.Location = new Point(groupBox1.Location.X, groupBox1.Location.Y);   groupBox2.Visible = true;   groupBox1.Visible = false;  }  //膚色檢測  private void button6_Click(object sender, EventArgs e)  {   if (pictureBox1.Image != null)   {    pictureBox1.Image = (Image)FaceClass.SkinDetect((Bitmap)pictureBox1.Image);   }   else   {    MessageBox.Show("Please open one image!");   }  }  //返回操作  private void button7_Click(object sender, EventArgs e)  {   groupBox1.Visible = true;   groupBox2.Visible = false;  }  //灰度化  private void button8_Click(object sender, EventArgs e)  {   if (pictureBox1.Image != null)   {    pictureBox1.Image = (Image)FaceClass.ImageGray((Bitmap)pictureBox1.Image);   }   else   {    MessageBox.Show("Please open one image!");   }  }  //博客連接  private void label2_Click(object sender, EventArgs e)  {   System.Diagnostics.Process.Start("IEXPLORE.EXE", "http://dongtingyueh.blog.163.com/");  }  //修正人臉位置  private void button9_Click(object sender, EventArgs e)  {   if (numAdjust != 0)   {    int a = numAdjust;    int b = src.Width - a;    int result = a < b ? a : b;    if (result == b)    {     src = src.Clone(new Rectangle(src.Width - 2 * result, 0, 2 * result, src.Height), src.PixelFormat);    }    else    {     src = src.Clone(new Rectangle(0, 0, 2 * result, src.Height), src.PixelFormat);    }    pictureBox1.Image = (Image)src;    pictureBox1.Width = src.Width;    pictureBox1.Height = src.Height;   }   trackBar1.Value = 0;   label4.Text = "0";  }  #endregion  #region 人臉位置修正  private void trackBar1_Scroll(object sender, EventArgs e)  {   if (src != null)   {    trackBar1.Maximum = src.Width;    trackBar1.Minimum = 0;    numAdjust = trackBar1.Value;    label4.Text = numAdjust.ToString();   }   else   {    MessageBox.Show("Please open one image!");   }  }  private void trackBar1_ValueChanged(object sender, EventArgs e)  {   pictureBox1.Invalidate();  }  private void trackBar1_MouseUp(object sender, MouseEventArgs e)  {   if (src != null)   {    Graphics g = pictureBox1.CreateGraphics();    g.DrawLine(new Pen(Color.Red, 2), new Point((int)(numAdjust), 0), new Point((int)(numAdjust), src.Height));    g.Dispose();   }   else   {    MessageBox.Show("Please open one image!");   }  }  #endregion }}