public static void prepareFiltersDefinitions()
{
LinearFilter treshold_Filter = new LinearFilter("Treshold", (byte R, byte G, byte B, byte A) => {
byte R_new, G_new, B_new, A_new;
byte value = (byte)(Filter.brightness(R, G, B) < 70 ? 0 : 255);
R_new = value;
G_new = value;
B_new = value;
A_new = A;
return(new byte[4] {
R_new, G_new, B_new, A_new
});
});
filters.Add(treshold_Filter);
LinearFilter brightness_Filter = new LinearFilter("Brightness", (byte R, byte G, byte B, byte A) => {
byte R_new, G_new, B_new, A_new;
byte value = (byte)Filter.brightness(R, G, B);
R_new = value;
G_new = value;
B_new = value;
A_new = A;
return(new byte[4] {
R_new, G_new, B_new, A_new
});
});
filters.Add(brightness_Filter);
LinearFilter invert_Filter = new LinearFilter("Invert", (byte R, byte G, byte B, byte A) => {
byte R_new, G_new, B_new, A_new;
R_new = (byte)(255 - R);
G_new = (byte)(255 - G);
B_new = (byte)(255 - B);
A_new = A;
return(new byte[4] {
R_new, G_new, B_new, A_new
});
});
filters.Add(invert_Filter);
LinearFilter ChannelR_Filter = new LinearFilter("Channel R", (byte R, byte G, byte B, byte A) => {
byte R_new, G_new, B_new, A_new;
R_new = G_new = B_new = R;
A_new = A;
return(new byte[4] {
R_new, G_new, B_new, A_new
});
});
filters.Add(ChannelR_Filter);
LinearFilter ChannelG_Filter = new LinearFilter("Channel G", (byte R, byte G, byte B, byte A) => {
byte R_new, G_new, B_new, A_new;
R_new = G_new = B_new = G;
A_new = A;
return(new byte[4] {
R_new, G_new, B_new, A_new
});
});
filters.Add(ChannelG_Filter);
LinearFilter ChannelB_Filter = new LinearFilter("Channel B", (byte R, byte G, byte B, byte A) => {
byte R_new, G_new, B_new, A_new;
R_new = G_new = B_new = B;
A_new = A;
return(new byte[4] {
R_new, G_new, B_new, A_new
});
});
filters.Add(ChannelB_Filter);
LinearFilter whiteToTransparent = new LinearFilter("WhiteToTransparent", (byte R, byte G, byte B, byte A) => {
byte A_new;
A_new = (byte)((R == 255 && G == 255 && B == 255) ? 0 : A);
return(new byte[4] {
R, G, B, A_new
});
});
filters.Add(whiteToTransparent);
LinearFilter blackToTransparent = new LinearFilter("BlackToTransparent", (byte R, byte G, byte B, byte A) => {
byte A_new;
A_new = (byte)((R == 0 && G == 0 && B == 0) ? 0 : A);
return(new byte[4] {
R, G, B, A_new
});
});
filters.Add(blackToTransparent);
double[,] blur3x3_Filter_matrix = new double[, ] {
{ 1.0 / 9, 1.0 / 9, 1.0 / 9 },
{ 1.0 / 9, 1.0 / 9, 1.0 / 9 },
{ 1.0 / 9, 1.0 / 9, 1.0 / 9 }
};
MatrixFilter blur3x3_Filter = new MatrixFilter("Blur_3x3", blur3x3_Filter_matrix);
filters.Add(blur3x3_Filter);
double[,] blur5x5_Filter_matrix = new double[, ] {
{ 1.0 / 25, 1.0 / 25, 1.0 / 25, 1.0 / 25, 1.0 / 25 },
{ 1.0 / 25, 1.0 / 25, 1.0 / 25, 1.0 / 25, 1.0 / 25 },
{ 1.0 / 25, 1.0 / 25, 1.0 / 25, 1.0 / 25, 1.0 / 25 },
{ 1.0 / 25, 1.0 / 25, 1.0 / 25, 1.0 / 25, 1.0 / 25 },
{ 1.0 / 25, 1.0 / 25, 1.0 / 25, 1.0 / 25, 1.0 / 25 }
};
MatrixFilter blur5x5_Filter = new MatrixFilter("Blur_5x5", blur5x5_Filter_matrix);
filters.Add(blur5x5_Filter);
double[,] blur7x7_Filter_matrix = new double[, ] {
{ 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49 },
{ 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49 },
{ 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49 },
{ 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49 },
{ 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49 },
{ 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49 },
{ 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49, 1.0 / 49 }
};
MatrixFilter blur7x7_Filter = new MatrixFilter("Blur_7x7", blur7x7_Filter_matrix);
filters.Add(blur7x7_Filter);
double[,] sharp1_Filter_matrix = new double[, ] {
{ 1, -2, 1 },
{ -2, 9, -2 },
{ 1, -2, 1 }
};
MatrixFilter sharp1_3x3_Filter = new MatrixFilter("Sharp1_3x3", sharp1_Filter_matrix);
filters.Add(sharp1_3x3_Filter);
double[,] sharp2_Filter_matrix = new double[, ] {
{ 0, -1, 0 },
{ -1, 5, -1 },
{ 0, -1, 0 }
};
MatrixFilter sharp2_3x3_Filter = new MatrixFilter("Sharp2_3x3", sharp2_Filter_matrix);
filters.Add(sharp2_3x3_Filter);
double[,] sharp3_Filter_matrix = new double[, ] {
{ -1, -1, 0 },
{ -1, 1, 1 },
{ 0, 1, 1 }
};
MatrixFilter sharp3_3x3_Filter = new MatrixFilter("Sharp3_3x3", sharp3_Filter_matrix);
filters.Add(sharp3_3x3_Filter);
double[,] laplace_Filter_matrix = new double[, ] {
{ 0, 1, 0 },
{ 1, -4, 1 },
{ 0, 1, 0 }
};
MatrixFilter laplace_3x3_Filter = new MatrixFilter("Laplace_3x3", laplace_Filter_matrix);
filters.Add(laplace_3x3_Filter);
double[,] edges1_Filter_matrix = new double[, ] {
{ 0, -1, 0 },
{ -1, 4, -1 },
{ 0, -1, 0 }
};
MatrixFilter edges1_3x3_Filter = new MatrixFilter("Edges1_3x3", edges1_Filter_matrix);
filters.Add(edges1_3x3_Filter);
double[,] edges2_Filter_matrix = new double[, ] {
{ -1, -1, -1 },
{ -1, 8, -1 },
{ -1, -1, -1 }
};
MatrixFilter edges2_3x3_Filter = new MatrixFilter("Edges2_3x3", edges2_Filter_matrix);
filters.Add(edges2_3x3_Filter);
double[,] edges3_Filter_matrix = new double[, ] {
{ 1, -2, 1 },
{ -2, 4, -2 },
{ 1, -2, 1 }
};
MatrixFilter edges3_3x3_Filter = new MatrixFilter("Edges3_3x3", edges3_Filter_matrix);
filters.Add(edges3_3x3_Filter);
double[,] edges4_Filter_matrix = new double[, ] {
{ 0, -1, 0 },
{ 0, 1, 0 },
{ 0, 0, 0 }
};
MatrixFilter edges4_3x3_Filter = new MatrixFilter("Edges4_3x3", edges4_Filter_matrix);
filters.Add(edges4_3x3_Filter);
double[,] sobelVertical_Filter_matrix = new double[, ] {
{ -1, 0, 1 },
{ -2, 1, 2 },
{ -1, 0, 1 }
};
MatrixFilter sobelVertical_3x3_Filter = new MatrixFilter("SharpSobelVertical_3x3", sobelVertical_Filter_matrix);
filters.Add(sobelVertical_3x3_Filter);
double[,] sobelHorizontal_Filter_matrix = new double[, ] {
{ -1, -2, -1 },
{ 0, 1, 0 },
{ 1, 2, 1 }
};
MatrixFilter sobelHorizontal_3x3_Filter = new MatrixFilter("SharpSobelHorizontal_3x3", sobelHorizontal_Filter_matrix);
filters.Add(sobelHorizontal_3x3_Filter);
double[,] edgesHorizontal_Filter_matrix = new double[, ] {
{ -1, -2, -1 },
{ 0, 0, 0 },
{ 1, 2, 1 }
};
MatrixFilter edgesHorizontal_3x3_Filter = new MatrixFilter("EdgesSobelHorizontal_3x3", edgesHorizontal_Filter_matrix);
filters.Add(edgesHorizontal_3x3_Filter);
double[,] edgesVertical_Filter_matrix = new double[, ] {
{ -1, 0, 1 },
{ -2, 0, 2 },
{ -1, 0, 1 }
};
MatrixFilter edgesVertical_3x3_Filter = new MatrixFilter("EdgesSobelVertical_3x3", edgesVertical_Filter_matrix);
filters.Add(edgesVertical_3x3_Filter);
}
public override byte[] apply(byte[] pixels, int width, int height)
{
return(MatrixFilter.applyMatrix(pixels, width, height, this.matrix));
}