Capture and compare finger print image

Question

I\'m developing an attendance management system using finger print recognition. So what i want is comparing the two bmp images those are generated by the scanner. I\'ve hea

Answer 1

I think you are looking for :

https://github.com/cameronmcefee/Image-Diff-View-Modes/commit/8e95f70c9c47168305970e91021072673d7cdad8

For Simple Approach:

   1: private bool ImageCompareArray(Bitmap firstImage, Bitmap secondImage) 
   2: {
   3:     bool flag = true;
   4:     string firstPixel;
   5:     string secondPixel;
   6:  
   7:     if (firstImage.Width == secondImage.Width 
   8:         && firstImage.Height == secondImage.Height)
   9:     {
  10:         for (int i = 0; i < firstImage.Width; i++)
  11:         {
  12:             for (int j = 0; j < firstImage.Height; j++)
  13:             {
  14:                 firstPixel = firstImage.GetPixel(i, j).ToString();
  15:                 secondPixel = secondImage.GetPixel(i, j).ToString();
  16:                 if (firstPixel != secondPixel)
  17:                 {
  18:                     flag = false;
  19:                     break;
  20:                 }
  21:             }
  22:         }
  23:  
  24:         if (flag == false)
  25:         {
  26:             return false;
  27:         }
  28:         else
  29:         {
  30:             return true;
  31:         }
  32:     }
  33:     else
  34:     {
  35:         return false;
  36:     }
  37: }

Also see : http://blogs.msdn.com/b/domgreen/archive/2009/09/06/comparing-two-images-in-c.aspx