public (int, int, double) ClosestColorPalettePositionWithDistance(BrickadiaColor color, ColorSpaceSetting colorSpace)
{
int x = -1;
int y = -1;
double colorDistance = double.MaxValue;
for (int colx = 0; colx < Colors.Count; colx++)
{
for (int coly = 0; coly < Colors[colx].Count; coly++)
{
BrickadiaColor bColor = Colors[colx][coly];
double distance = double.MaxValue;
switch (colorSpace)
{
case ColorSpaceSetting.sRGB:
distance = color.DistanceSrgb(bColor);
break;
case ColorSpaceSetting.Oklab:
distance = color.DistanceOklab(bColor);
break;
}
if (distance < colorDistance)
{
x = colx;
y = coly;
colorDistance = distance;
}
}
}
return(x, y, colorDistance);
}
public BrickadiaColor ClosestColor(BrickadiaColor color, ColorSpaceSetting colorSpace)
{
BrickadiaColor nearColor = default;
double colorDistance = double.MaxValue;
for (int x = 0; x < Colors.Count; x++)
{
for (int y = 0; y < Colors[x].Count; y++)
{
BrickadiaColor bColor = Colors[x][y];
double distance = double.MaxValue;
switch (colorSpace)
{
case ColorSpaceSetting.sRGB:
distance = color.DistanceSrgb(bColor);
break;
case ColorSpaceSetting.Oklab:
distance = color.DistanceOklab(bColor);
break;
}
if (distance < colorDistance)
{
nearColor = bColor;
colorDistance = distance;
}
}
}
return(nearColor);
}
public double DistanceOklab(BrickadiaColor other)
{
var(aa, ab, ac) = ToOklab();
var(ba, bb, bc) = other.ToOklab();
var adiff = ba - aa;
var bdiff = bb - ab;
var cdiff = bc - ac;
return(Math.Sqrt(adiff * adiff + bdiff * bdiff + cdiff * cdiff));
}
public (int, int) ClosestColorPalettePosition(BrickadiaColor color, ColorSpaceSetting colorSpace)
{
(int x, int y, double _) = ClosestColorPalettePositionWithDistance(color, colorSpace);
return(x, y);
}