Java Utililty Methods HSL Color Convert

List of utility methods to do HSL Color Convert

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Description

The list of methods to do HSL Color Convert are organized into topic(s).

Method

intHSLtoRGB(float h, float s, float l)
HS Lto RGB 
float m2 = (l <= 0.5f) ? (l * (s + 1)) : (l + s - l * s);
float m1 = 2 * l - m2;
int r = (int) (255 * HUEtoRGB(m1, m2, h + (1f / 3)));
int g = (int) (255 * HUEtoRGB(m1, m2, h));
int b = (int) (255 * HUEtoRGB(m1, m2, h - (1f / 3)));
return (((r << 8) | g) << 8) | b;
float[]HslToRgb(float h, float s, float l, float a)
Hsl To Rgb 
float[] result = new float[4];
if (s == 0) {
    result[0] = l;
    result[1] = l;
    result[2] = l;
    result[3] = a;
} else {
    float q = (l < 0.5f) ? (l * (1.0f + s)) : (l + s - (l * s));
...
intHSLtoRGB(float hue, float sat, float lum)
all in [0,1] ! 
float v;
float red, green, blue;
float m;
float sv;
int sextant;
float fract, vsf, mid1, mid2;
red = lum; 
green = lum;
...
float[]hslToRgb(float[] hsl)
Converts an HSL color value to RGB. 
float r, g, b;
float h, s, l;
h = hsl[0];
s = hsl[1];
l = hsl[2];
if (s == 0) {
    r = g = b = l; 
} else {
...
intHSLtoRGB(float[] hsl)
Converts from HSL color space to RGB color. 
float r, g, b, h, s, l; 
float temp1, temp2, tempr, tempg, tempb;
h = hsl[0];
s = hsl[1];
l = hsl[2];
if (s == 0) {
    r = g = b = l;
else {
    if (l < 0.5)
        temp2 = l * (1 + s);
    else
        temp2 = (l + s) - (l * s);
    temp1 = 2 * l - temp2;
    tempr = h + 1.0f / 3.0f;
    if (tempr > 1)
        tempr--;
    tempg = h;
    tempb = h - 1.0f / 3.0f;
    if (tempb < 0)
        tempb++;
    if (tempr < 1.0 / 6.0)
        r = temp1 + (temp2 - temp1) * 6.0f * tempr;
    else if (tempr < 0.5)
        r = temp2;
    else if (tempr < 2.0 / 3.0)
        r = temp1 + (temp2 - temp1) * ((2.0f / 3.0f) - tempr) * 6.0f;
    else
        r = temp1;
    if (tempg < 1.0 / 6.0)
        g = temp1 + (temp2 - temp1) * 6.0f * tempg;
    else if (tempg < 0.5)
        g = temp2;
    else if (tempg < 2.0 / 3.0)
        g = temp1 + (temp2 - temp1) * ((2.0f / 3.0f) - tempg) * 6.0f;
    else
        g = temp1;
    if (tempb < 1.0 / 6.0)
        b = temp1 + (temp2 - temp1) * 6.0f * tempb;
    else if (tempb < 0.5)
        b = temp2;
    else if (tempb < 2.0 / 3.0)
        b = temp1 + (temp2 - temp1) * ((2.0f / 3.0f) - tempb) * 6.0f;
    else
        b = temp1;
int result = 0;
result += ((int) (r * 255) & 0xFF) << 16;
result += ((int) (g * 255) & 0xFF) << 8;
result += ((int) (b * 255) & 0xFF);
return result;
float[]hslToRGB(int h, float s, float l)
hsl To RGB 
final int hue = normalizeHue(h);
float saturation = s;
if (saturation > 100) {
    saturation = 100;
if (saturation < 0) {
    saturation = 0;
float lightness = l;
if (lightness > 100) {
    lightness = 100;
if (lightness < 0) {
    lightness = 0;
float m2;
if (lightness <= 0.5) {
    m2 = lightness * (saturation + 1);
} else {
    m2 = lightness + saturation - lightness * saturation;
float m1 = lightness * 2 - m2;
float r = hueToRGB(m1, m2, hue + ONE_THIRD);
float g = hueToRGB(m1, m2, hue);
float b = hueToRGB(m1, m2, hue - ONE_THIRD);
return new float[] { r, g, b };
floathueFromColor(Color c)
hue From Color 
double r = c.getRed() / 255.;
double g = c.getGreen() / 255.;
double b = c.getBlue() / 255.;
double min, max;
min = Math.min(r, Math.min(g, b));
max = Math.max(r, Math.max(g, b));
double v = max;
double h = 0;
...