// static function for converting from Color to LABColor
public static LABColor FromColor(Color c)
{
float D65x = 0.9505f;
float D65y = 1.0f;
float D65z = 1.0890f;
float rLinear = c.r;
float gLinear = c.g;
float bLinear = c.b;
float r = (rLinear > 0.04045f) ? Mathf.Pow((rLinear + 0.055f) / (1f + 0.055f), 2.2f) : (rLinear / 12.92f);
float g = (gLinear > 0.04045f) ? Mathf.Pow((gLinear + 0.055f) / (1f + 0.055f), 2.2f) : (gLinear / 12.92f);
float b = (bLinear > 0.04045f) ? Mathf.Pow((bLinear + 0.055f) / (1f + 0.055f), 2.2f) : (bLinear / 12.92f);
float x = (r * 0.4124f + g * 0.3576f + b * 0.1805f);
float y = (r * 0.2126f + g * 0.7152f + b * 0.0722f);
float z = (r * 0.0193f + g * 0.1192f + b * 0.9505f);
x = (x > 0.9505f) ? 0.9505f : ((x < 0f) ? 0f : x);
y = (y > 1.0f) ? 1.0f : ((y < 0f) ? 0f : y);
z = (z > 1.089f) ? 1.089f : ((z < 0f) ? 0f : z);
LABColor lab = new LABColor(0f, 0f, 0f);
float fx = x / D65x;
float fy = y / D65y;
float fz = z / D65z;
fx = ((fx > 0.008856f) ? Mathf.Pow(fx, (1.0f / 3.0f)) : (7.787f * fx + 16.0f / 116.0f));
fy = ((fy > 0.008856f) ? Mathf.Pow(fy, (1.0f / 3.0f)) : (7.787f * fy + 16.0f / 116.0f));
fz = ((fz > 0.008856f) ? Mathf.Pow(fz, (1.0f / 3.0f)) : (7.787f * fz + 16.0f / 116.0f));
lab.l = 116.0f * fy - 16f;
lab.a = 500.0f * (fx - fy);
lab.b = 200.0f * (fy - fz);
return(lab);
}
// Use this for initialization
void Start()
{
mom = (GameObject)Instantiate(Resources.Load("Blob"));
dad = (GameObject)Instantiate(Resources.Load("Blob"));
//Separate the two so they aren't covering each other
mom.transform.position = new Vector2(3, transform.position.y);
dad.transform.position = new Vector2(-3, transform.position.y);
//Add markings to the dad
//GO = (GameObject)Instantiate(Resources.Load("dogmarkings"));
//GO.transform.parent = dad.transform;
//GO.transform.position = new Vector3(-3, transform.position.y, -1);
//Flip the Mommy around so that she faces the Daddy
mom.transform.eulerAngles = new Vector2(0, 180);
//Make the Mom red and the Dad green
LABColor c1 = new LABColor(Color.yellow);
LABColor c2 = new LABColor(Color.red);
LABColor c3 = new LABColor(Color.white);
LABColor c4 = new LABColor(Color.black);
mom.GetComponent<SpriteRenderer>().color = c1.ToColor();
dad.GetComponent<SpriteRenderer>().color = c2.ToColor();
mom.GetComponent<Blob>().addGene<LABColor>("Color", c1, 0, c3, 0);
dad.GetComponent<Blob>().addGene<LABColor>("Color", c2, 0, c4, 0);
child = Punnett.cross(mom.GetComponent<Blob>(), dad.GetComponent<Blob>());
child.transform.position = new Vector2(0, transform.position.y);
child.GetComponent<SpriteRenderer>().color = child.GetComponent<Blob>().color.ToColor();
}
public void RecolorTanks(string team, string htmlColor)
{
Color newColor;
ColorUtility.TryParseHtmlString(htmlColor, out newColor);
if (LABColor.Compare(new LABColor(newColor), new LABColor(new Color(255, 187, 77))) > 20f)
{
if (team == "Blue" && LABColor.Compare(new LABColor(newColor), new LABColor(m_Tanks[1].m_CurrentColor)) > 40f)
{
for (int i = 0; i < m_Tanks.Length - missingTanks; i++)
{
if (i % 2 == 0)
{
m_Tanks [i].Recolor(newColor);
}
}
m_BlueTeamColor = htmlColor;
m_Setup.m_BlueTeamText.color = newColor;
m_Setup.m_BlueScoreText.color = newColor;
}
else if (team == "Red" && LABColor.Compare(new LABColor(newColor), new LABColor(m_Tanks[0].m_CurrentColor)) > 40f)
{
for (int i = 0; i < m_Tanks.Length - missingTanks; i++)
{
if (i % 2 != 0)
{
m_Tanks [i].Recolor(newColor);
}
}
m_RedTeamColor = htmlColor;
m_Setup.m_RedTeamText.color = newColor;
m_Setup.m_RedScoreText.color = newColor;
}
}
}
// constructor - takes a Color
public LABColor(Color col)
{
LABColor temp = FromColor(col);
L = temp.l;
A = temp.a;
B = temp.b;
}
// constructor - takes a Color
public LABColor(Color col)
{
LABColor temp = FromColor(col);
L = temp.L;
A = temp.A;
B = temp.B;
}
static double LABDistance(LABColor lab1, LABColor lab2)
{
var deltaL = lab1.l - lab2.l;
var deltaA = lab1.a - lab2.a;
var deltaB = lab1.b - lab2.b;
return(Math.Sqrt(deltaA * deltaA + deltaB * deltaB + deltaL * deltaL));
}
// constructor - takes a Color
public LABColor(Color col) : this()
{
LABColor temp = FromColor(col);
l = temp.l;
a = temp.a;
b = temp.b;
}
//difference between two LABColors
public static float[] Diff(LABColor color1, LABColor color2)
{
float[] diffArray = new float[3];
diffArray [0] = color1.l - color2.l;
diffArray [1] = color1.a - color2.a;
diffArray [2] = color1.b - color2.b;
return(diffArray);
}
//call SetColors AFTER sorting
public void SetColors()
{
//count number of animals (sorted such that animal nodes come first)
int seriesCount = seriesNodes.Count;
int plantMax = 7;
int animalCount = 0;
while (animalCount < seriesCount && seriesNodes [animalCount] > plantMax)
{
animalCount++;
}
int plantCount = seriesCount - animalCount;
//get color range from LABColor for best spectrum (converts RGB to linear)
//vary color from red for animals and from green for plants
LABColor firstColor = new LABColor(new Color(1.00f, 0.00f, 0.00f));
LABColor lastAnimalColor = new LABColor(new Color(0.50f, 0.50f, 1.00f)); //incorporate blue
LABColor firstPlantColor = new LABColor(new Color(0.50f, 0.50f, 0.00f));
LABColor lastColor = new LABColor(new Color(0.00f, 1.00f, 0.00f));
float[] deltaAnimalColor = LABColor.Diff(lastAnimalColor, firstColor);
for (int j = 0; j < deltaAnimalColor.Length; j++)
{
deltaAnimalColor[j] = deltaAnimalColor[j] / (Mathf.Max(1.0f, (float)animalCount - 1.0f));
}
if (plantCount == 1)
{
firstPlantColor = lastColor;
}
float[] deltaPlantColor = LABColor.Diff(lastColor, firstPlantColor);
for (int j = 0; j < deltaPlantColor.Length; j++)
{
deltaPlantColor[j] = deltaPlantColor[j] / (Mathf.Max(1.0f, (float)plantCount - 1.0f));
}
LABColor currColor = firstColor;
//loop through series to set series' colors
for (int i = 0; i < seriesCount; i++)
{
if (i == animalCount) //first plant
{
currColor = firstPlantColor;
}
Color color = LABColor.ToColor(currColor);
string name = seriesLabels [i];
seriesColors [name] = color;
seriesColorsHex [name] = Functions.ColorToHex(color);
currColor.Increment(i < animalCount ? deltaAnimalColor : deltaPlantColor);
}
}
public static double HSVDistanceCompare(Color e1, Color e2, int lever)
{
if (lever == 1)
{
float H1, S1, V1, H2, S2, V2;
Color.RGBToHSV(e1, out H1, out S1, out V1);
Color.RGBToHSV(e2, out H2, out S2, out V2);
Vector3 x = new Vector3(H1, S1, V1);
Vector3 y = new Vector3(H2, S2, V2);
return(Vector3.Distance(x, y));
}
else
{
LABColor lab1 = LABColor.FromColor(e1);
LABColor lab2 = LABColor.FromColor(e2);
return(LABColor.Distance(lab1, lab2));
}
}
public void modifyMaterial(Dictionary <string, object> properties, Material[] materials)
{
string timeString = UIDataManager.Instance.MonthKeys[UIDataManager.Instance.TimeIndex];
string heightDataKey = UIDataManager.Instance.MonthKeys[UIDataManager.Instance.TimeIndex];
string sideColorDataKey;
if ((float.Parse(timeString.Substring(0, 4))) > 2005)
{
sideColorDataKey = "2010-minorityPercent";
}
else
{
sideColorDataKey = "2000-minorityPercent";
}
float minDataValue = 0;
float maxDataValue = 100;
float dataValue = minDataValue;
Material sideMaterial = materials[1];
if (properties.ContainsKey(sideColorDataKey) && properties.ContainsKey(heightDataKey))
{
if (float.TryParse(properties[sideColorDataKey].ToString(), out dataValue))
{
float colorPercent = (dataValue - minDataValue) / (maxDataValue - minDataValue);
LABColor minColorVal = new LABColor(0f, 25f, -100f);
LABColor maxColorVal = new LABColor(100f, 0f, 0f);
LABColor sideMaterialColor = LABColor.Lerp(maxColorVal, minColorVal, colorPercent);
sideMaterial.SetColor("_Color", sideMaterialColor.ToColor());
}
}
else
{
// materials[0] = new Material(sideMaterial.shader);
// // TODO: set top material to missing data material
// materials[0].SetColor("_Color", new Color(229f / 255f, 117f / 255f, 52f / 255f, 1f));
// materials [0].mainTexture = sideMaterial.mainTexture;
// materials = new Material[0];
}
}
public static Color ToColor(LABColor lab){
float D65x = 0.9505f;
float D65y = 1.0f;
float D65z = 1.0890f;
float delta = 6.0f/29.0f;
float fy = (lab.l+16f)/116.0f;
float fx = fy + (lab.a/500.0f);
float fz = fy - (lab.b/200.0f);
float x = (fx > delta)? D65x * (fx*fx*fx) : (fx - 16.0f/116.0f)*3f*(delta*delta)*D65x;
float y = (fy > delta)? D65y * (fy*fy*fy) : (fy - 16.0f/116.0f)*3f*(delta*delta)*D65y;
float z = (fz > delta)? D65z * (fz*fz*fz) : (fz - 16.0f/116.0f)*3f*(delta*delta)*D65z;
float r = x*3.2410f - y*1.5374f - z*0.4986f;
float g = -x*0.9692f + y*1.8760f - z*0.0416f;
float b = x*0.0556f - y*0.2040f + z*1.0570f;
r = (r<=0.0031308f)? 12.92f*r : (1f+0.055f)* Mathf.Pow(r, (1.0f/2.4f)) - 0.055f;
g = (g<=0.0031308f)? 12.92f*g : (1f+0.055f)* Mathf.Pow(g, (1.0f/2.4f)) - 0.055f;
b = (b<=0.0031308f)? 12.92f*b : (1f+0.055f)* Mathf.Pow(b, (1.0f/2.4f)) - 0.055f;
r = (r<0)? 0 : r;
g = (g<0)? 0 : g;
b = (b<0)? 0 : b;
return new Color(r, g, b);
}
// static function for linear interpolation between two LABColors
public static LABColor Lerp(LABColor a, LABColor b, float t)
{
return(new LABColor(Mathf.Lerp(a.l, b.l, t), Mathf.Lerp(a.a, b.a, t), Mathf.Lerp(a.b, b.b, t)));
}
// static function for interpolation between two Unity Colors through normalized colorspace
public static Color Lerp(Color a, Color b, float t)
{
return((LABColor.Lerp(LABColor.FromColor(a), LABColor.FromColor(b), t)).ToColor());
}
// Comparison
public static float Compare(LABColor lab1, LABColor lab2)
{
//Set weighting factors to 1
float k_L = 1.0f;
float k_C = 1.0f;
float k_H = 1.0f;
//Calculate Cprime1, Cprime2, Cabbar
float c_star_1_ab = Mathf.Sqrt(lab1.A * lab1.A + lab1.B * lab1.B);
float c_star_2_ab = Mathf.Sqrt(lab2.A * lab2.A + lab2.B * lab2.B);
float c_star_average_ab = (c_star_1_ab + c_star_2_ab) / 2;
float c_star_average_ab_pot7 = c_star_average_ab * c_star_average_ab * c_star_average_ab;
c_star_average_ab_pot7 *= c_star_average_ab_pot7 * c_star_average_ab;
float G = 0.5f * (1 - Mathf.Sqrt(c_star_average_ab_pot7 / (c_star_average_ab_pot7 + 6103515625))); //25^7
float a1_prime = (1 + G) * lab1.A;
float a2_prime = (1 + G) * lab2.A;
float C_prime_1 = Mathf.Sqrt(a1_prime * a1_prime + lab1.B * lab1.B);
float C_prime_2 = Mathf.Sqrt(a2_prime * a2_prime + lab2.B * lab2.B);
//Angles in Degree.
float h_prime_1 = (Mathf.Rad2Deg * ((Mathf.Atan2(lab1.B, a1_prime)) + 360) % 360f);
float h_prime_2 = (Mathf.Rad2Deg * ((Mathf.Atan2(lab2.B, a2_prime)) + 360) % 360f);
float delta_L_prime = lab2.L - lab1.L;
float delta_C_prime = C_prime_2 - C_prime_1;
float h_bar = Mathf.Abs(h_prime_1 - h_prime_2);
float delta_h_prime;
if (C_prime_1 * C_prime_2 == 0)
{
delta_h_prime = 0;
}
else
{
if (h_bar <= 180f)
{
delta_h_prime = h_prime_2 - h_prime_1;
}
else if (h_bar > 180f && h_prime_2 <= h_prime_1)
{
delta_h_prime = h_prime_2 - h_prime_1 + 360f;
}
else
{
delta_h_prime = h_prime_2 - h_prime_1 - 360f;
}
}
float delta_H_prime = 2 * Mathf.Sqrt(C_prime_1 * C_prime_2) * Mathf.Sin(Mathf.Deg2Rad * (delta_h_prime / 2));
// Calculate CIEDE2000
float L_prime_average = (lab1.L + lab2.L) / 2f;
float C_prime_average = (C_prime_1 + C_prime_2) / 2f;
//Calculate h_prime_average
float h_prime_average;
if (C_prime_1 * C_prime_2 == 0)
{
h_prime_average = 0;
}
else
{
if (h_bar <= 180f)
{
h_prime_average = (h_prime_1 + h_prime_2) / 2;
}
else if (h_bar > 180f && (h_prime_1 + h_prime_2) < 360f)
{
h_prime_average = (h_prime_1 + h_prime_2 + 360f) / 2;
}
else
{
h_prime_average = (h_prime_1 + h_prime_2 - 360f) / 2;
}
}
float L_prime_average_minus_50_square = (L_prime_average - 50);
L_prime_average_minus_50_square *= L_prime_average_minus_50_square;
float S_L = 1 + ((.015f * L_prime_average_minus_50_square) / Mathf.Sqrt(20 + L_prime_average_minus_50_square));
float S_C = 1 + .045f * C_prime_average;
float T = 1
- .17f * Mathf.Cos(Mathf.Deg2Rad * (h_prime_average - 30))
+ .24f * Mathf.Cos(Mathf.Deg2Rad * (h_prime_average * 2))
+ .32f * Mathf.Cos(Mathf.Deg2Rad * (h_prime_average * 3 + 6))
- .2f * Mathf.Cos(Mathf.Deg2Rad * (h_prime_average * 4 - 63));
float S_H = 1 + .015f * T * C_prime_average;
float h_prime_average_minus_275_div_25_square = (h_prime_average - 275) / (25);
h_prime_average_minus_275_div_25_square *= h_prime_average_minus_275_div_25_square;
float delta_theta = 30 * Mathf.Exp(-h_prime_average_minus_275_div_25_square);
float C_prime_average_pot_7 = C_prime_average * C_prime_average * C_prime_average;
C_prime_average_pot_7 *= C_prime_average_pot_7 * C_prime_average;
float R_C = 2 * Mathf.Sqrt(C_prime_average_pot_7 / (C_prime_average_pot_7 + 6103515625));
float R_T = -Mathf.Sin(Mathf.Deg2Rad * ((2 * delta_theta))) * R_C;
float delta_L_prime_div_k_L_S_L = delta_L_prime / (S_L * k_L);
float delta_C_prime_div_k_C_S_C = delta_C_prime / (S_C * k_C);
float delta_H_prime_div_k_H_S_H = delta_H_prime / (S_H * k_H);
float CIEDE2000 = Mathf.Sqrt(
delta_L_prime_div_k_L_S_L * delta_L_prime_div_k_L_S_L
+ delta_C_prime_div_k_C_S_C * delta_C_prime_div_k_C_S_C
+ delta_H_prime_div_k_H_S_H * delta_H_prime_div_k_H_S_H
+ R_T * delta_C_prime_div_k_C_S_C * delta_H_prime_div_k_H_S_H
);
return(CIEDE2000);
}
SKColor colorQuantify(SKColor c)
{
LABColor l = ToLAB(c);
return(LAB2RGB[LABMap.OrderBy((x) => LABDistance(x, l)).First()]);
}
//call SetColors AFTER sorting
public void SetColors()
{
//count number of animals (sorted such that animal nodes come first)
int seriesCount = seriesNodes.Count;
int plantMax = 7;
int animalCount = 0;
while (animalCount < seriesCount && seriesNodes [animalCount] > plantMax) {
animalCount ++;
}
int plantCount = seriesCount - animalCount;
//get color range from LABColor for best spectrum (converts RGB to linear)
//vary color from red for animals and from green for plants
LABColor firstColor = new LABColor (new Color (1.00f, 0.00f, 0.00f));
LABColor lastAnimalColor = new LABColor (new Color (0.50f, 0.50f, 1.00f)); //incorporate blue
LABColor firstPlantColor = new LABColor (new Color (0.50f, 0.50f, 0.00f));
LABColor lastColor = new LABColor (new Color (0.00f, 1.00f, 0.00f));
float[] deltaAnimalColor = LABColor.Diff (lastAnimalColor, firstColor);
for (int j=0; j < deltaAnimalColor.Length; j++) {
deltaAnimalColor[j] = deltaAnimalColor[j] / (Mathf.Max(1.0f, (float)animalCount - 1.0f));
}
if (plantCount == 1) {
firstPlantColor = lastColor;
}
float[] deltaPlantColor = LABColor.Diff (lastColor, firstPlantColor);
for (int j=0; j < deltaPlantColor.Length; j++) {
deltaPlantColor[j] = deltaPlantColor[j] / (Mathf.Max(1.0f, (float)plantCount - 1.0f));
}
LABColor currColor = firstColor;
//loop through series to set series' colors
for (int i = 0; i < seriesCount; i ++) {
if (i == animalCount ) { //first plant
currColor = firstPlantColor;
}
Color color = LABColor.ToColor (currColor);
string name = seriesLabels [i];
seriesColors [name] = color;
seriesColorsHex [name] = Functions.ColorToHex (color);
currColor.Increment(i < animalCount ? deltaAnimalColor : deltaPlantColor);
}
}
// function for converting an instance of LABColor to Color
public Color ToColor()
{
return(LABColor.ToColor(this));
}
public static Color AverageColorsLAB(Color a, Color b)
{
return(LABColor.Lerp(a, b, 0.5f));
}
// https://en.wikipedia.org/wiki/Color_difference
public static float GetDifference(this Color a, Color b)
{
var lab1 = LABColor.ToLABColor(a);
var lab2 = LABColor.ToLABColor(b);
var c_star_1_ab = Mathf.Sqrt(lab1.A * lab1.A + lab1.B * lab1.B);
var c_star_2_ab = Mathf.Sqrt(lab2.A * lab2.A + lab2.B * lab2.B);
var c_star_average_ab = (c_star_1_ab + c_star_2_ab) * 0.5f;
var c_star_average_ab_pot7 = c_star_average_ab * c_star_average_ab * c_star_average_ab;
c_star_average_ab_pot7 *= c_star_average_ab_pot7 * c_star_average_ab;
var G = 0.5f * (1.0f - Mathf.Sqrt(c_star_average_ab_pot7 / (c_star_average_ab_pot7 + 6103515625f))); // 25^7
var a1_prime = (1.0f + G) * lab1.A;
var a2_prime = (1.0f + G) * lab2.A;
var C_prime_1 = Mathf.Sqrt(a1_prime * a1_prime + lab1.B * lab1.B);
var C_prime_2 = Mathf.Sqrt(a2_prime * a2_prime + lab2.B * lab2.B);
var h_prime_1 = (Mathf.Atan2(lab1.B, a1_prime) * 180.0f / Mathf.PI + 360.0f) % 360.0f;
var h_prime_2 = (Mathf.Atan2(lab2.B, a2_prime) * 180.0f / Mathf.PI + 360.0f) % 360.0f;
var delta_L_prime = lab2.L - lab1.L;
var delta_C_prime = C_prime_2 - C_prime_1;
var h_bar = Mathf.Abs(h_prime_1 - h_prime_2);
float delta_h_prime;
if (C_prime_1 * C_prime_2 == 0.0f)
{
delta_h_prime = 0.0f;
}
else
{
if (h_bar <= 180.0f)
{
delta_h_prime = h_prime_2 - h_prime_1;
}
else if (h_bar > 180.0f && h_prime_2 <= h_prime_1)
{
delta_h_prime = h_prime_2 - h_prime_1 + 360.0f;
}
else
{
delta_h_prime = h_prime_2 - h_prime_1 - 360.0f;
}
}
var delta_H_prime = 2.0f * Mathf.Sqrt(C_prime_1 * C_prime_2) * Mathf.Sin(delta_h_prime * Mathf.PI / 360.0f);
var L_prime_average = (lab1.L + lab2.L) * 0.5f;
var C_prime_average = (C_prime_1 + C_prime_2) * 0.5f;
float h_prime_average;
if (C_prime_1 * C_prime_2 == 0.0f)
{
h_prime_average = 0.0f;
}
else
{
if (h_bar <= 180.0f)
{
h_prime_average = (h_prime_1 + h_prime_2) * 0.5f;
}
else if (h_bar > 180.0f && h_prime_1 + h_prime_2 < 360.0f)
{
h_prime_average = (h_prime_1 + h_prime_2 + 360.0f) * 0.5f;
}
else
{
h_prime_average = (h_prime_1 + h_prime_2 - 360.0f) * 0.5f;
}
}
var L_prime_average_minus_50_square = L_prime_average - 50.0f;
L_prime_average_minus_50_square *= L_prime_average_minus_50_square;
var S_L = 1.0f + 0.015f * L_prime_average_minus_50_square / Mathf.Sqrt(20.0f + L_prime_average_minus_50_square);
var S_C = 1.0f + 0.045f * C_prime_average;
var T = 1.0f
- 0.17f * Mathf.Cos(Mathf.Deg2Rad * (h_prime_average - 30.0f))
+ 0.24f * Mathf.Cos(Mathf.Deg2Rad * (h_prime_average * 2.0f))
+ 0.32f * Mathf.Cos(Mathf.Deg2Rad * (h_prime_average * 3.0f + 6.0f))
- 0.2f * Mathf.Cos(Mathf.Deg2Rad * (h_prime_average * 4.0f - 63.0f));
var S_H = 1.0f + 0.015f * T * C_prime_average;
var h_prime_average_minus_275_div_25_square = (h_prime_average - 275.0f) / 25.0f;
h_prime_average_minus_275_div_25_square *= h_prime_average_minus_275_div_25_square;
var delta_theta = 30.0f * Mathf.Exp(-h_prime_average_minus_275_div_25_square);
var C_prime_average_pot_7 = C_prime_average * C_prime_average * C_prime_average;
C_prime_average_pot_7 *= C_prime_average_pot_7 * C_prime_average;
var R_C = 2.0f * Mathf.Sqrt(C_prime_average_pot_7 / (C_prime_average_pot_7 + 6103515625f));
var R_T = -Mathf.Sin(Mathf.Deg2Rad * (2.0f * delta_theta)) * R_C;
var delta_L_prime_div_k_L_S_L = delta_L_prime / S_L;
var delta_C_prime_div_k_C_S_C = delta_C_prime / S_C;
var delta_H_prime_div_k_H_S_H = delta_H_prime / S_H;
return(Mathf.Sqrt(delta_L_prime_div_k_L_S_L * delta_L_prime_div_k_L_S_L
+ delta_C_prime_div_k_C_S_C * delta_C_prime_div_k_C_S_C
+ delta_H_prime_div_k_H_S_H * delta_H_prime_div_k_H_S_H
+ R_T * delta_C_prime_div_k_C_S_C * delta_H_prime_div_k_H_S_H));
}
// static function for returning the color difference in a normalized colorspace (Delta-E)
public static float Distance(LABColor a, LABColor b)
{
return Mathf.Sqrt(Mathf.Pow((a.l - b.l), 2f) + Mathf.Pow((a.a - b.a), 2f) + Mathf.Pow((a.b - b.b),2f));
}
// static function for converting from Color to LABColor
public static LABColor FromColor(Color c)
{
float D65x = 0.9505f;
float D65y = 1.0f;
float D65z = 1.0890f;
float rLinear = c.r;
float gLinear = c.g;
float bLinear = c.b;
float r = (rLinear > 0.04045f)? Mathf.Pow((rLinear + 0.055f)/(1f + 0.055f), 2.2f) : (rLinear/12.92f) ;
float g = (gLinear > 0.04045f)? Mathf.Pow((gLinear + 0.055f)/(1f + 0.055f), 2.2f) : (gLinear/12.92f) ;
float b = (bLinear > 0.04045f)? Mathf.Pow((bLinear + 0.055f)/(1f + 0.055f), 2.2f) : (bLinear/12.92f) ;
float x = (r*0.4124f + g*0.3576f + b*0.1805f);
float y = (r*0.2126f + g*0.7152f + b*0.0722f);
float z = (r*0.0193f + g*0.1192f + b*0.9505f);
x = (x>0.9505f)? 0.9505f : ((x<0f)? 0f : x);
y = (y>1.0f)? 1.0f : ((y<0f)? 0f : y);
z = (z>1.089f)? 1.089f : ((z<0f)? 0f : z);
LABColor lab = new LABColor(0f,0f,0f);
float fx = x/D65x;
float fy = y/D65y;
float fz = z/D65z;
fx = ((fx > 0.008856f)? Mathf.Pow(fx, (1.0f/3.0f)) : (7.787f*fx + 16.0f/116.0f));
fy = ((fy > 0.008856f)? Mathf.Pow(fy, (1.0f/3.0f)) : (7.787f*fy + 16.0f/116.0f));
fz = ((fz > 0.008856f)? Mathf.Pow(fz, (1.0f/3.0f)) : (7.787f*fz + 16.0f/116.0f));
lab.l = 116.0f * fy - 16f;
lab.a = 500.0f * (fx - fy);
lab.b = 200.0f * (fy - fz);
return lab;
}
// static function for converting from LABColor to Color
public static Color ToColor(LABColor lab)
{
float D65x = 0.9505f;
float D65y = 1.0f;
float D65z = 1.0890f;
float delta = 6.0f/29.0f;
float fy = (lab.l+16f)/116.0f;
float fx = fy + (lab.a/500.0f);
float fz = fy - (lab.b/200.0f);
float x = (fx > delta)? D65x * (fx*fx*fx) : (fx - 16.0f/116.0f)*3f*(delta*delta)*D65x;
float y = (fy > delta)? D65y * (fy*fy*fy) : (fy - 16.0f/116.0f)*3f*(delta*delta)*D65y;
float z = (fz > delta)? D65z * (fz*fz*fz) : (fz - 16.0f/116.0f)*3f*(delta*delta)*D65z;
float r = x*3.2410f - y*1.5374f - z*0.4986f;
float g = -x*0.9692f + y*1.8760f - z*0.0416f;
float b = x*0.0556f - y*0.2040f + z*1.0570f;
r = (r<=0.0031308f)? 12.92f*r : (1f+0.055f)* Mathf.Pow(r, (1.0f/2.4f)) - 0.055f;
g = (g<=0.0031308f)? 12.92f*g : (1f+0.055f)* Mathf.Pow(g, (1.0f/2.4f)) - 0.055f;
b = (b<=0.0031308f)? 12.92f*b : (1f+0.055f)* Mathf.Pow(b, (1.0f/2.4f)) - 0.055f;
r = (r<0)? 0 : r;
g = (g<0)? 0 : g;
b = (b<0)? 0 : b;
return new Color(r, g, b);
}
public static Color LerpColorsLAB(Color a, Color b, float t)
{
return(LABColor.Lerp(a, b, t));
}
// static function for returning the color difference in a normalized colorspace (Delta-E)
public static float Distance(LABColor a, LABColor b)
{
return(Mathf.Sqrt(Mathf.Pow((a.l - b.l), 2f) + Mathf.Pow((a.a - b.a), 2f) + Mathf.Pow((a.b - b.b), 2f)));
}
// static function for linear interpolation between two LABColors
public static LABColor Lerp(LABColor a, LABColor b, float t)
{
return(new LABColor(Mathf.Lerp(a.L, b.L, t), Mathf.Lerp(a.A, b.A, t), Mathf.Lerp(a.B, b.B, t)));
}
// static function for returning the color difference in a normalized colorspace (Delta-E)
public static float Distance(LABColor a, LABColor b)
{
return(Mathf.Sqrt(Mathf.Pow((a.L - b.L), 2f) + Mathf.Pow((a.A - b.A), 2f) + Mathf.Pow((a.B - b.B), 2f)));
}
// static function for linear interpolation between two LABColors
public static LABColor Lerp(LABColor a, LABColor b, float t)
{
return new LABColor(Mathf.Lerp(a.l, b.l, t), Mathf.Lerp(a.a, b.a, t), Mathf.Lerp(a.b, b.b, t));
}
//difference between two LABColors
public static float[] Diff(LABColor color1, LABColor color2)
{
float[] diffArray = new float[3];
diffArray [0] = color1.l - color2.l;
diffArray [1] = color1.a - color2.a;
diffArray [2] = color1.b - color2.b;
return diffArray;
}
