private void radioButton_CheckedChanged(object sender, EventArgs e)
{
if (rbtnRgbEuclid.Checked)
{
currentColorSpaceForFormula = ConfigPCT.ColorSpace.RGB;
currentDistanceFormulaRGB = ConfigPCT.FormulaRGB.RGB_Euclid;
}
else if (rbtnCIE76.Checked)
{
currentColorSpaceForFormula = ConfigPCT.ColorSpace.Lab;
currentDistanceFormulaLab = ConfigPCT.FormulaLab.Lab_CIE76;
}
else if (rbtnCMCIC.Checked)
{
currentColorSpaceForFormula = ConfigPCT.ColorSpace.Lab;
currentDistanceFormulaLab = ConfigPCT.FormulaLab.Lab_CMCIC;
}
else if (rbtnCIE94.Checked)
{
currentColorSpaceForFormula = ConfigPCT.ColorSpace.Lab;
currentDistanceFormulaLab = ConfigPCT.FormulaLab.Lab_CIE94;
}
else if (rbtnCIE2000.Checked)
{
currentColorSpaceForFormula = ConfigPCT.ColorSpace.Lab;
currentDistanceFormulaLab = ConfigPCT.FormulaLab.Lab_CIE2000;
}
panel1.Refresh();
}
// force to use a formula to calculate
public static int ColorKNN(Color c, List <Color> listColor, ConfigPCT.ColorSpace colorSpace, ConfigPCT.FormulaRGB formulaRGBForUse, ConfigPCT.FormulaLab formulaLabForUse)
{
if (listColor == null || listColor.Count == 0)
{
return(-1);
}
CalDistanceLabDlgt calDistanceHandlerLocal = null;
if (colorSpace == ConfigPCT.ColorSpace.Lab)
{
if (formulaLabForUse == ConfigPCT.FormulaLab.Lab_CIE76)
{
calDistanceHandlerLocal = CalDistance_CIE76;
}
else if (formulaLabForUse == ConfigPCT.FormulaLab.Lab_CMCIC)
{
calDistanceHandlerLocal = CalDistance_CMCIC;
}
else if (formulaLabForUse == ConfigPCT.FormulaLab.Lab_CIE94)
{
calDistanceHandlerLocal = CalDistance_CIE94;
}
else if (formulaLabForUse == ConfigPCT.FormulaLab.Lab_CIE2000)
{
calDistanceHandlerLocal = CalDistance_CIE2000;
}
}
Lab labColor = ColorHelper.RgbToLab(new Rgb {
R = c.R, G = c.G, B = c.B
});
double minDistance;
if (colorSpace == ConfigPCT.ColorSpace.RGB)
{
minDistance = CalDistance_RGBEuclid(c, listColor[0]);
}
else
{
minDistance = calDistanceHandlerLocal(labColor, ColorHelper.RgbToLab(new Rgb {
R = listColor[0].R, G = listColor[0].G, B = listColor[0].B
}));
}
int size = listColor.Count;
int indexColor = 0;
for (int i = 1; i < size; i++)
{
double dis;
if (colorSpace == ConfigPCT.ColorSpace.RGB)
{
dis = CalDistance_RGBEuclid(c, listColor[i]);
}
else
{
dis = calDistanceHandlerLocal(labColor, ColorHelper.RgbToLab(new Rgb {
R = listColor[i].R, G = listColor[i].G, B = listColor[i].B
}));
}
if (dis < minDistance)
{
minDistance = dis;
indexColor = i;
}
}
return(indexColor);
}