public static Double CompareCieLAB(Image img1, Image img2, IlluminantItem _userIlluminant)
{
CieLAB CieLABItem1 = TranFormImageToCieLAB(img1, _userIlluminant),
CieLABItem2 = TranFormImageToCieLAB(img2, _userIlluminant);
return(CompareCieLAB(CieLABItem1, CieLABItem2));
}
private static CieLAB TranFormImageToCieLAB(Image image, IlluminantItem _userIlluminant)
{
var averageRGB = new AverageRGB(image);
var XYZ = new XYZ(averageRGB);
var cieLAB = new CieLAB(XYZ, _userIlluminant);
return(cieLAB);
}
public CieLAB(XYZ xYZ, IlluminantItem illuminant)
{
var x = illuminant.RefX - xYZ.X;
var y = illuminant.RefY - xYZ.Y;
var z = illuminant.RefZ - xYZ.Z;
var xyz = new Dictionary <String, Double>()
{
{ "X", x }, { "Y", y }, { "Z", z }
};
foreach (var pos in xyz)
{
var posValue = (pos.Value > 0.008856) ? Math.Pow(pos.Value, (1 / 3)) : (7.787 * pos.Value) + (16 / 116);
}
_cieL = (116 * xyz["Y"]) - 16;
_cieA = 500 * (xyz["X"] - xyz["Y"]);
_cieB = 200 * (xyz["Y"] - xyz["Z"]);
}
private static void IntialiseIlluminantItem()
{
String observer = String.Empty,
illuminantInput = String.Empty;
while (String.IsNullOrWhiteSpace(observer) || !(observer.Equals("0") || observer.Equals("1")))
{
Console.WriteLine($"\nPlease select of Observer by typing 0 - (2° (CIE 1931)) or 1 (10° (CIE 1964))");
observer = Console.ReadLine();
}
var count = 1;
foreach (var illuminant in IlluminantReference.IlluminantCollection)
{
var xVal = observer.Equals("0") ? illuminant.x2 : illuminant.x10;
var yVal = observer.Equals("0") ? illuminant.y2 : illuminant.y10;
var zVal = observer.Equals("0") ? illuminant.z2 : illuminant.z10;
Console.WriteLine($"number :{count} - {illuminant.illuminant} - X :{xVal} - Y :{xVal} - Z :{xVal}");
count++;
}
while (String.IsNullOrWhiteSpace(illuminantInput))
{
Console.WriteLine($"Please select of option by typing the number of the item");
illuminantInput = Console.ReadLine();
var isValid = false;
for (var i = 1; i < count; i++)
{
if (illuminantInput.Equals(i.ToString()))
{
isValid = true;
}
}
illuminantInput = isValid ? illuminantInput : String.Empty;
}
_userIlluminant = new IlluminantItem(IlluminantReference.IlluminantCollection[Convert.ToInt32(illuminantInput)], observer);
}
