public PixelColor BlendPixel(
PixelColor[,] first,
PixelColor[,] second,
Func <PixelColor?, PixelColor?, PixelColor> blendFunction,
int col, int row)
{
var colorFirst =
col >= first.Width() || row >= first.Height()
? (PixelColor?)null
: first[col, row];
var colorSecond =
col >= second.Width() || row >= second.Height()
? (PixelColor?)null
: second[col, row];
return(blendFunction(colorFirst, colorSecond));
}
public PixelColor[,] Blend(
PixelColor[,] first,
PixelColor[,] second,
Func <PixelColor?, PixelColor?, PixelColor> blendFunction)
{
var width = Math.Max(first.Width(), second.Width());
var height = Math.Max(first.Height(), second.Height());
var blend = new PixelColor[width, height];
for (int col = 0; col != width; ++col)
{
for (int row = 0; row != height; ++row)
{
var color = BlendPixel(first, second, blendFunction, col, row);
blend[col, row] = color;
}
}
return(blend);
}
