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)));
}
public void TheSameColorTest()
{
var color1 = RGBColor.FromRGB8bit(100, 150, 105);
var color2 = RGBColor.FromRGB8bit(100, 150, 105);
var result =
ColorDifferenceAnalyzer.ComputeColorDifference(ColorConverter.ToLab(color1),
ColorConverter.ToLab(color2));
Assert.AreEqual(0.0d, result);
}
public void OneHundredPointsDifferenceInColor()
{
var color1 = RGBColor.FromRGB8bit(100, 150, 105);
var color2 = RGBColor.FromRGB8bit(100, 250, 105);
var result =
ColorDifferenceAnalyzer.ComputeColorDifference(ColorConverter.ToLab(color1),
ColorConverter.ToLab(color2));
Assert.AreEqual(27.275115148843373d, result);
}
public void MaxDifferenceInColor()
{
var color1 = RGBColor.FromRGB8bit(0, 0, 0);
var color2 = RGBColor.FromRGB8bit(255, 255, 255);
var result =
ColorDifferenceAnalyzer.ComputeColorDifference(ColorConverter.ToLab(color1),
ColorConverter.ToLab(color2));
Assert.AreEqual(100.0d, result);
}
public void OnePointDifferenceInColor()
{
var color1 = RGBColor.FromRGB8bit(100, 150, 105);
var color2 = RGBColor.FromRGB8bit(101, 150, 105);
var result =
ColorDifferenceAnalyzer.ComputeColorDifference(ColorConverter.ToLab(color1),
ColorConverter.ToLab(color2));
Assert.AreEqual(0.20453188911597528d, result);
}
