public static Image Outline(Image img, int borderSize, Color borderColor)
{
Bitmap result = img.CreateEmptyBitmap(borderSize * 2, borderSize * 2);
ColorMatrix maskMatrix = new ColorMatrix();
maskMatrix.Matrix00 = 0;
maskMatrix.Matrix11 = 0;
maskMatrix.Matrix22 = 0;
maskMatrix.Matrix33 = 1;
maskMatrix.Matrix40 = ((float)borderColor.R).Remap(0, 255, 0, 1);
maskMatrix.Matrix41 = ((float)borderColor.G).Remap(0, 255, 0, 1);
maskMatrix.Matrix42 = ((float)borderColor.B).Remap(0, 255, 0, 1);
using (img)
using (Image shadow = maskMatrix.Apply(img))
using (Graphics g = Graphics.FromImage(result))
{
for (int i = 0; i <= borderSize * 2; i++)
{
g.DrawImage(shadow, new Rectangle(i, 0, shadow.Width, shadow.Height));
g.DrawImage(shadow, new Rectangle(i, borderSize * 2, shadow.Width, shadow.Height));
g.DrawImage(shadow, new Rectangle(0, i, shadow.Width, shadow.Height));
g.DrawImage(shadow, new Rectangle(borderSize * 2, i, shadow.Width, shadow.Height));
}
g.DrawImage(img, new Rectangle(borderSize, borderSize, img.Width, img.Height));
}
return(result);
}
public static Bitmap ConvertBlackAndWhite(Bitmap Image, Boolean invert)
{
ColorMatrix TempMatrix = new ColorMatrix();
float v = 9;
float[][] FloatColorMatrixB =
{
new float[] { v, v, v, 0, 0 },
new float[] { v, v, v, 0, 0 },
new float[] { v, v, v, 0, 0 },
new float[] { 0, 0, 0, v, 0 },
new float[] { -v, -v, -v, 0, v }
};
float[][] FloatColorMatrixI =
{
new float[] { -1, 0, 0, 0, 0 },
new float[] { 0, -1, 0, 0, 0 },
new float[] { 0, 0, -1, 0, 0 },
new float[] { 0, 0, 0, 1, 0 },
new float[] { 1, 1, 1, 1, 1 }
};
if (invert == false)
{
TempMatrix.Matrix = FloatColorMatrixB;
}
else
{
TempMatrix.Matrix = FloatColorMatrixI;
}
return(TempMatrix.Apply(Image));
}
public static Bitmap AddShadow(Image sourceImage, float opacity, int size, float darkness, Color color, Point offset)
{
Image shadowImage = null;
try
{
shadowImage = sourceImage.CreateEmptyBitmap(size * 2, size * 2);
ColorMatrix maskMatrix = new ColorMatrix();
maskMatrix.Matrix00 = 0;
maskMatrix.Matrix11 = 0;
maskMatrix.Matrix22 = 0;
maskMatrix.Matrix33 = opacity;
maskMatrix.Matrix40 = ((float)color.R).Remap(0, 255, 0, 1);
maskMatrix.Matrix41 = ((float)color.G).Remap(0, 255, 0, 1);
maskMatrix.Matrix42 = ((float)color.B).Remap(0, 255, 0, 1);
Rectangle shadowRectangle = new Rectangle(size, size, sourceImage.Width, sourceImage.Height);
maskMatrix.Apply(sourceImage, shadowImage, shadowRectangle);
if (size > 0)
{
Blur((Bitmap)shadowImage, size);
}
if (darkness > 1)
{
ColorMatrix alphaMatrix = new ColorMatrix();
alphaMatrix.Matrix33 = darkness;
Image shadowImage2 = alphaMatrix.Apply(shadowImage);
shadowImage.Dispose();
shadowImage = shadowImage2;
}
Bitmap result = shadowImage.CreateEmptyBitmap(Math.Abs(offset.X), Math.Abs(offset.Y));
using (Graphics g = Graphics.FromImage(result))
{
g.SetHighQuality();
g.DrawImage(shadowImage, Math.Max(0, offset.X), Math.Max(0, offset.Y), shadowImage.Width, shadowImage.Height);
g.DrawImage(sourceImage, Math.Max(size, -offset.X + size), Math.Max(size, -offset.Y + size), sourceImage.Width, sourceImage.Height);
}
return(result);
}
finally
{
if (sourceImage != null)
{
sourceImage.Dispose();
}
if (shadowImage != null)
{
shadowImage.Dispose();
}
}
}
/// <summary>
/// Image processing module
/// </summary>
/// <param name="Image"></param>
/// <param name="Value"></param>
/// <returns></returns>
public static Bitmap AdjustBrightness(Bitmap Image, int Value)
{
float FinalValue = (float)Value / 255.0f;
ColorMatrix TempMatrix = new ColorMatrix();
TempMatrix.Matrix = new float[][] {
new float[] { 1, 0, 0, 0, 0 },
new float[] { 0, 1, 0, 0, 0 },
new float[] { 0, 0, 1, 0, 0 },
new float[] { 0, 0, 0, 1, 0 },
new float[] { FinalValue, FinalValue, FinalValue, 1, 1 }
};
return(TempMatrix.Apply(Image));
}
public override Image Apply(Image img)
{
ColorMatrix colorMatrix = new ColorMatrix(new[]
{
new float[] { Rr, Gr, Br, Ar, 0 },
new float[] { Rg, Gg, Bg, Ag, 0 },
new float[] { Rb, Gb, Bb, Ab, 0 },
new float[] { Ra, Ga, Ba, Aa, 0 },
new float[] { Ro, Go, Bo, Ao, 1 }
});
using (img)
{
return(colorMatrix.Apply(img));
}
}
public override Bitmap Apply(Bitmap bmp)
{
ColorMatrix colorMatrix = new ColorMatrix(new[]
{
new float[] { Rr, Gr, Br, Ar, 0 },
new float[] { Rg, Gg, Bg, Ag, 0 },
new float[] { Rb, Gb, Bb, Ab, 0 },
new float[] { Ra, Ga, Ba, Aa, 0 },
new float[] { Ro, Go, Bo, Ao, 1 }
});
using (bmp)
{
return(colorMatrix.Apply(bmp));
}
}