C#開發(fā)的人臉左右相似度計(jì)算軟件源碼分析

更新時(shí)間：2015年04月23日 09:29:51 作者：小蘿莉

這篇文章主要介紹了C#開發(fā)的人臉左右相似度計(jì)算軟件,較為詳細(xì)的分析了相似度計(jì)算的相關(guān)原理與具體實(shí)現(xiàn)技巧,需要的朋友可以參考下

本文實(shí)例講述了C#開發(fā)的人臉左右相似度計(jì)算軟件。分享給大家供大家參考。具體分析如下：

模仿湖南衛(wèi)視快樂大本營中所使用的一款人臉左右對稱相似度計(jì)算軟件,自己寫的一個(gè)小軟件,使用語言是C#,希望跟喜歡這個(gè)軟件的同志們共享!

1. FaceClass類程序

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(shù)
  /// </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(shù)
  /// </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(shù)
  /// </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(shù)
  /// </summary>
  /// <param name="src"></param>
  /// <returns></returns>
  public static Bitmap ImageGray(Bitmap src)
  {
   int w = src.Width;
   int h = src.Height;
   //構(gòu)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(nèi)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(diào)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;
   }
  }
 }
}

2. SameRatioClass類程序

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(shù)
  /// </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(shù)
  /// </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;
   }
  }
 }
}

3. 主窗體程序

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(diào)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(shù)
  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(shù)
  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
 }
}

希望本文所述對大家的C#程序設(shè)計(jì)有所幫助。

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