Equalize() 공개 메소드

Equalizes the histogram
public Equalize ( ) : void
리턴 void
 /// <summary>
 /// Uses an RGB histogram to equalize the image
 /// </summary>
 /// <param name="OriginalImage">Image to manipulate</param>
 /// <returns>The resulting SwiftBitmap image</returns>
 public static SwiftBitmap Equalize(this SwiftBitmap OriginalImage)
 {
     Contract.Requires<ArgumentNullException>(OriginalImage != null, "OriginalImage");
     using (SwiftBitmap NewSwiftBitmap = new SwiftBitmap(OriginalImage.Width, OriginalImage.Height))
     {
         var TempHistogram = new RGBHistogram(OriginalImage);
         TempHistogram.Equalize();
         NewSwiftBitmap.Lock();
         OriginalImage.Lock();
         Parallel.For(0, OriginalImage.Width, x =>
         {
             for (int y = 0; y < OriginalImage.Height; ++y)
             {
                 Color Current = OriginalImage.GetPixel(x, y);
                 var NewR = (int)TempHistogram.R[Current.R];
                 var NewG = (int)TempHistogram.G[Current.G];
                 var NewB = (int)TempHistogram.B[Current.B];
                 NewR = NewR.Clamp(255, 0);
                 NewG = NewG.Clamp(255, 0);
                 NewB = NewB.Clamp(255, 0);
                 NewSwiftBitmap.SetPixel(x, y, Color.FromArgb(NewR, NewG, NewB));
             }
         });
         NewSwiftBitmap.Unlock();
         return OriginalImage.Unlock().Copy(NewSwiftBitmap);
     }
 }
예제 #2
0
 /// <summary>
 /// Uses an RGB histogram to equalize the image
 /// </summary>
 /// <param name="Image">Image to manipulate</param>
 public static Bitmap Equalize(Bitmap Image)
 {
     System.Drawing.Bitmap TempBitmap = Image;
     System.Drawing.Bitmap NewBitmap = new System.Drawing.Bitmap(TempBitmap.Width, TempBitmap.Height);
     System.Drawing.Graphics NewGraphics = System.Drawing.Graphics.FromImage(NewBitmap);
     NewGraphics.DrawImage(TempBitmap, new System.Drawing.Rectangle(0, 0, TempBitmap.Width, TempBitmap.Height), new System.Drawing.Rectangle(0, 0, TempBitmap.Width, TempBitmap.Height), System.Drawing.GraphicsUnit.Pixel);
     NewGraphics.Dispose();
     RGBHistogram TempHistogram = new RGBHistogram(NewBitmap);
     TempHistogram.Equalize();
     for (int x = 0; x < NewBitmap.Width; ++x)
     {
         for (int y = 0; y < NewBitmap.Height; ++y)
         {
             Color Current=NewBitmap.GetPixel(x,y);
             int NewR = (int)TempHistogram.R[Current.R];
             int NewG = (int)TempHistogram.G[Current.G];
             int NewB = (int)TempHistogram.B[Current.B];
             if (NewR >= 256)
                 NewR = 255;
             if (NewG >= 256)
                 NewG = 255;
             if (NewB >= 256)
                 NewB = 255;
             NewBitmap.SetPixel(x, y, Color.FromArgb(NewR, NewG, NewB));
         }
     }
     return NewBitmap;
 }