private void Distort(IMagickImage output, PointD[] corners, MagickGeometry inputDimensions, MagickGeometry trimmedDimensions, MagickColor backgroundColor)
{
MagickGeometry outputDimensions = GetDimensions(output, corners, inputDimensions, trimmedDimensions);
double[] arguments = new double[16]
{
corners[0].X, corners[0].Y, 0, 0,
corners[1].X, corners[1].Y, 0, outputDimensions.Height,
corners[2].X, corners[2].Y, outputDimensions.Width, outputDimensions.Height,
corners[3].X, corners[3].Y, outputDimensions.Width, 0
};
output.VirtualPixelMethod = VirtualPixelMethod.Background;
output.BackgroundColor = backgroundColor;
if (!DisableViewportCrop)
{
output.SetArtifact("distort:viewport", GetViewport(arguments, corners).ToString());
}
var distortSettings = new DistortSettings()
{
Bestfit = true
};
output.Distort(DistortMethod.Perspective, distortSettings, arguments);
output.BorderColor = backgroundColor;
output.Border(2);
output.ColorFuzz = ColorFuzz;
output.Trim();
output.RePage();
}
private MagickGeometry TrimImage(IMagickImage image, MagickColor backgroundColor, int borderSize)
{
image.BorderColor = backgroundColor;
image.Border(borderSize);
image.ColorFuzz = ColorFuzz;
image.Trim();
image.RePage();
return(new MagickGeometry(image.Width, image.Height));
}
private void PadImage(IMagickImage image)
{
if (Padding == 0)
{
return;
}
image.Compose = CompositeOperator.Over;
image.BorderColor = BackgroundColor;
image.Border(Padding);
}
public void CastShadow(IMagickImage caster, int offsetX, int offsetY, double size, Percentage alpha, MagickColor color, bool extendCasterWithBorder = true)
{
using (IMagickImage shadow = caster.Clone())
{
shadow.Shadow(offsetX, offsetY, size, alpha, color);
if (extendCasterWithBorder)
{
caster.BorderColor = MagickColors.Transparent;
caster.Border((int)size);
}
caster.Composite(shadow, 0, 0, CompositeOperator.DstOver);
}
}
private static void PadImage(IMagickImage image, int borderSize)
{
image.Border(borderSize);
}