/// <summary>
/// Implements the operator |.
/// </summary>
/// <param name="Image1">The first image.</param>
/// <param name="Image2">The second image</param>
/// <returns>The result of the operator.</returns>
public static SwiftBitmap operator |(SwiftBitmap Image1, SwiftBitmap Image2)
{
Contract.Requires <ArgumentNullException>(Image1 != null, "Image1");
Contract.Requires <ArgumentNullException>(Image2 != null, "Image2");
Image1.Lock();
Image2.Lock();
var Result = new SwiftBitmap(Image1.Width, Image1.Height);
Result.Lock();
Parallel.For(0, Result.Width, x =>
{
for (int y = 0; y < Result.Height; ++y)
{
var Pixel1 = Image1.GetPixel(x, y);
var Pixel2 = Image2.GetPixel(x, y);
Result.SetPixel(x, y,
Color.FromArgb(Pixel1.R | Pixel2.R,
Pixel1.G | Pixel2.G,
Pixel1.B | Pixel2.B));
}
});
Image2.Unlock();
Image1.Unlock();
return(Result.Unlock());
}
/// <summary>
/// Applies the convolution filter to the image
/// </summary>
/// <param name="filter">The filter.</param>
/// <param name="absolute">if set to <c>true</c> then the absolute value is used</param>
/// <param name="offset">The offset to use for each pixel</param>
/// <returns>Returns the image with the filter applied</returns>
public SwiftBitmap ApplyConvolutionFilter(int[][] filter, bool absolute = false, int offset = 0)
{
Contract.Requires <NullReferenceException>(InternalBitmap != null);
using (SwiftBitmap Result = new SwiftBitmap(Width, Height))
{
Lock();
Result.Lock();
Parallel.For(0, Width, x =>
{
for (int y = 0; y < Height; ++y)
{
int RValue = 0;
int GValue = 0;
int BValue = 0;
int Weight = 0;
int XCurrent = -filter[0].Length / 2;
for (int x2 = 0; x2 < filter[0].Length; ++x2)
{
if (XCurrent + x < Width && XCurrent + x >= 0)
{
int YCurrent = -filter.Length / 2;
for (int y2 = 0; y2 < filter.Length; ++y2)
{
if (YCurrent + y < Height && YCurrent + y >= 0)
{
var Pixel = GetPixel(XCurrent + x, YCurrent + y);
RValue += filter[x2][y2] * Pixel.R;
GValue += filter[x2][y2] * Pixel.G;
BValue += filter[x2][y2] * Pixel.B;
Weight += filter[x2][y2];
}
++YCurrent;
}
}
++XCurrent;
}
var MeanPixel = GetPixel(x, y);
if (Weight == 0)
{
Weight = 1;
}
if (Weight > 0)
{
if (absolute)
{
RValue = System.Math.Abs(RValue);
GValue = System.Math.Abs(GValue);
BValue = System.Math.Abs(BValue);
}
RValue = (RValue / Weight) + offset;
RValue = RValue.Clamp(255, 0);
GValue = (GValue / Weight) + offset;
GValue = GValue.Clamp(255, 0);
BValue = (BValue / Weight) + offset;
BValue = BValue.Clamp(255, 0);
MeanPixel = Color.FromArgb(RValue, GValue, BValue);
}
Result.SetPixel(x, y, MeanPixel);
}
});
Unlock();
Result.Unlock();
return(Copy(Result));
}
}