public void FourDifferentColorsTest()
{
var matrix = new ImageLabColorMatrix(2, 2);
matrix.AddColor(0, 0, 10, 20, 30);
matrix.AddColor(1, 0, 120, 230, 130);
matrix.AddColor(0, 1, 60, 50, 40);
matrix.AddColor(1, 1, 132, 221, 39);
//first point
Assert.AreEqual(5.8508421241227389d, matrix[0, 0].L);
Assert.AreEqual(-1.4962768959702193d, matrix[0, 0].a);
Assert.AreEqual(-8.2548250495584838d, matrix[0, 0].b);
//second point
Assert.AreEqual(21.655220595591864d, matrix[0, 1].L);
Assert.AreEqual(3.280509548974714d, matrix[0, 1].a);
Assert.AreEqual(8.1445067737438315d, matrix[0, 1].b);
//third point
Assert.AreEqual(83.050799346571111d, matrix[1, 0].L);
Assert.AreEqual(-48.362370827319864d, matrix[1, 0].a);
Assert.AreEqual(38.474842882762729d, matrix[1, 0].b);
//fourth point
Assert.AreEqual(80.230934014636588d, matrix[1, 1].L);
Assert.AreEqual(-47.580683430828493d, matrix[1, 1].a);
Assert.AreEqual(71.103078949925276d, matrix[1, 1].b);
}
public double Process(ImageLabColorMatrix colorMatrix1, ImageLabColorMatrix colorMatrix2)
{
if (colorMatrix1.Width != colorMatrix2.Width || colorMatrix1.Height != colorMatrix2.Height)
{
return(100.0);
}
double counter = 0d;
double sum = 0.0d;
for (int x = 0; x < colorMatrix1.Width; x++)
{
for (int y = 0; y < colorMatrix1.Height; y++)
{
var color1 = colorMatrix1[x, y];
var color2 = colorMatrix2[x, y];
var result = ColorDifferenceAnalyzer.ComputeColorDifference(color1, color2);
if (result > 0.0d)
{
counter++;
}
sum += result;
}
}
if (Math.Abs(counter) < 0.00001)
{
return(0.0d);
}
return((sum / counter) * (counter / (colorMatrix1.Width * colorMatrix1.Height)));
}
