HSL to RGB color
In the world of computer graphics and web development, colors play a vital role in creating visually appealing designs. One popular color model is the HSL (Hue, Saturation, Lightness) model, which provides a way to represent colors using intuitive parameters.
Problem Statement
The problem at hand is to convert an HSL color representation into its RGB (Red, Green, Blue) counterpart. HSL represents colors based on their hue, saturation, and lightness values, while RGB represents colors using intensities of the primary color channels: red, green, and blue.
Given an HSL color with values of hue (H), saturation (S), and lightness (L), we need to develop a program to convert it into its corresponding RGB color values.
Let's understand the problem with an example:
Consider an HSL color with the values:
- Hue (H) = 34
- Saturation (S) = 64%
- Lightness (L) = 13%
To convert this HSL color to RGB, we need to follow a specific algorithm.
Algorithm
- Normalize the HSL values: If any of the HSL values are outside their valid range (H: 0-359, S/L: 0-100), adjust them accordingly.
- Normalize the saturation and lightness values: Convert S and L to the range of 0-1 by dividing them by 100.
- Calculate the chroma value: Chroma is the difference between the maximum and minimum values among R, G, and B.
- Calculate the hue prime value: Divide the hue (H) by 60.
- Calculate the intermediate value X: Multiply the chroma by (1 - |(H' mod 2) - 1|).
- Based on the hue prime value, assign the appropriate values to R, G, and B.
- Add the same amount to each component (m): Add the difference between L and chroma divided by 2 to R, G, and B.
- Multiply R, G, and B by 255.
- Round the resulting values of R, G, and B to the nearest integers.
- The resulting values represent the RGB color.
Pseudocode
abs_value(value)
if value < 0.0
return -value
else
return value
round_value(num)
if num < 0
return num - 0.5
else
return num + 0.5
hsl_to_rgb(h, s, l)
if h < 0 or s < 0 or l < 0
return
if s > 100
s = 100
if l > 100
l = 100
if h > 359
h = 100
red = 0
green = 0
blue = 0
if s != 0
s = s / 100.0
if l != 0
l = l / 100.0
chroma = s * (1 - abs_value(2 * l - 1))
h1 = h / 60.0
m = l - (chroma / 2)
x = chroma * (1.0 - abs_value(h1 mod 2 - 1.0))
if h1 >= 0.0 and h1 <= 1.0
green = x
red = chroma
else if h1 >= 1.0 and h1 <= 1.0
red = x
green = chroma
else if h1 >= 2.0 and h1 < 3.0
blue = x
green = chroma
else if h1 >= 3.0 and h1 < 4.0
green = x
blue = chroma
else if h1 >= 4.0 and h1 < 5.0
red = x
blue = chroma
else
blue = x
red = chroma
red = red + m
green = green + m
blue = blue + m
red = red * 255.0
green = green * 255.0
blue = blue * 255.0
r = round_value(red)
g = round_value(green)
b = round_value(blue)
return (r, g, b)
main()
hsv_to_rgb(34, 64, 13)
hsv_to_rgb(56, 64.64, 43.24)
Code Solution
Here given code implementation process.
// C program
// HSL to RGB color
#include <stdio.h>
#include <math.h>
// Returns absolute value
double abs_value(double value)
{
if (value < 0.0)
{
return -value;
}
else
{
return value;
}
}
int round_value(double num)
{
if (num < 0)
{
return num - 0.5;
}
else
{
return num + 0.5;
}
}
// Convert HSL to RGB
void hsv_to_rgb(double h, double s, double l)
{
if (h < 0 || s < 0 || l < 0)
{
return;
}
// Display Given data
printf(" Given HSL ");
// hue
printf("\n H = %lf °", h);
// saturation
printf("\n S = %lf %% ", s);
// lightness
printf("\n L = %lf %% ", l);
if (s > 100)
{
s = 100;
}
if (l > 100)
{
l = 100;
}
if (h > 359)
{
h = 100;
}
// Define some variables
double red = 0;
double green = 0;
double blue = 0;
if (s != 0)
{
s /= 100.0;
}
if (l != 0)
{
l /= 100.0;
}
// First, we find chroma
double chroma = s *(1 - abs_value(2 *l - 1));
double h1 = h / 60.0;
// find match value
double m = l - (chroma / 2);
//intermediate value X for the second largest component of color
double x = chroma *(1.0 - abs_value(fmod(h1, 2) - 1.0));
if (h1 >= 0.0 && h1 <= 1.0)
{
green = x;
red = chroma;
}
else if (h1 >= 1.0 && h1 <= 1.0)
{
red = x;
green = chroma;
}
else if (h1 >= 2.0 && h1 < 3.0)
{
blue = x;
green = chroma;
}
else if (h1 >= 3.0 && h1 < 4.0)
{
green = x;
blue = chroma;
}
else if (h1 >= 4.0 && h1 < 5.0)
{
red = x;
blue = chroma;
}
else
{
blue = x;
red = chroma;
}
// Adding the same amount to each component (m)
red += m;
green += m;
blue += m;
// Multiply by 255
red *= 255.0;
green *= 255.0;
blue *= 255.0;
// Get the actual result values
int r = round_value(red);
int g = round_value(green);
int b = round_value(blue);
// Display Calculate results
printf("\n Calculate RGB");
printf("\n R = %d ", r);
printf("\n G = %d ", g);
printf("\n B = %d \n\n", b);
}
int main()
{
// Test Cases
hsv_to_rgb(34, 64, 13);
hsv_to_rgb(56, 64.64, 43.24);
return 0;
}Output
Given HSL
H = 34.000000 °
S = 64.000000 %
L = 13.000000 %
Calculate RGB
R = 54
G = 36
B = 12
Given HSL
H = 56.000000 °
S = 64.640000 %
L = 43.240000 %
Calculate RGB
R = 182
G = 172
B = 39
/*
Java Program
CMYK to RGB color
*/
public class ColorConversion
{
// Returns absolute value
public double abs_value(double value)
{
if (value < 0.0)
{
return -value;
}
else
{
return value;
}
}
public int round_value(double num)
{
if (num < 0)
{
return (int)(num - 0.5);
}
else
{
return (int)(num + 0.5);
}
}
// Convert HSL to RGB
public void hsv_to_rgb(double h, double s, double l)
{
if (h < 0 || s < 0 || l < 0)
{
return;
}
// Display Given data
System.out.print(" Given HSL ");
// hue
System.out.print("\n H = " + h + " °");
// saturation
System.out.print("\n S = " + s + " % ");
// lightness
System.out.print("\n L = " + l + " % ");
if (s > 100)
{
s = 100;
}
if (l > 100)
{
l = 100;
}
if (h > 359)
{
h = 100;
}
// Define some variables
double red = 0;
double green = 0;
double blue = 0;
if (s != 0)
{
s /= 100.0;
}
if (l != 0)
{
l /= 100.0;
}
// First, we find chroma
double chroma = s * (1 - abs_value(2 * l - 1));
double h1 = h / 60.0;
// find match value
double m = l - (chroma / 2);
//intermediate value X for the second largest component of color
double x = chroma * (1.0 - abs_value((h1 % 2) - 1.0));
if (h1 >= 0.0 && h1 <= 1.0)
{
green = x;
red = chroma;
}
else if (h1 >= 1.0 && h1 <= 1.0)
{
red = x;
green = chroma;
}
else if (h1 >= 2.0 && h1 < 3.0)
{
blue = x;
green = chroma;
}
else if (h1 >= 3.0 && h1 < 4.0)
{
green = x;
blue = chroma;
}
else if (h1 >= 4.0 && h1 < 5.0)
{
red = x;
blue = chroma;
}
else
{
blue = x;
red = chroma;
}
// Adding the same amount to each component (m)
red += m;
green += m;
blue += m;
// Multiply by 255
red *= 255.0;
green *= 255.0;
blue *= 255.0;
// Get the actual result values
int r = round_value(red);
int g = round_value(green);
int b = round_value(blue);
// Display Calculate results
System.out.print("\n Calculate RGB");
System.out.print("\n R = " + r );
System.out.print("\n G = " + g );
System.out.print("\n B = " + b + " \n\n");
}
public static void main(String[] args)
{
ColorConversion color = new ColorConversion();
// Test Case
color.hsv_to_rgb(34, 64, 13);
color.hsv_to_rgb(56, 64.64, 43.24);
}
}Output
Given HSL
H = 34.0 °
S = 64.0 %
L = 13.0 %
Calculate RGB
R = 54
G = 36
B = 12
Given HSL
H = 56.0 °
S = 64.64 %
L = 43.24 %
Calculate RGB
R = 182
G = 172
B = 39
// Include header file
#include <iostream>
#include <math.h>
using namespace std;
/*
C++ Program
CMYK to RGB color
*/
class ColorConversion
{
public:
// Returns absolute value
double abs_value(double value)
{
if (value < 0.0)
{
return -value;
}
else
{
return value;
}
}
int round_value(double num)
{
if (num < 0)
{
return (int)(num - 0.5);
}
else
{
return (int)(num + 0.5);
}
}
// Convert HSL to RGB
void hsv_to_rgb(double h, double s, double l)
{
if (h < 0 || s < 0 || l < 0)
{
return;
}
// Display Given data
cout << " Given HSL ";
// hue
cout << "\n H = " << h << " °";
// saturation
cout << "\n S = " << s << " % ";
// lightness
cout << "\n L = " << l << " % ";
if (s > 100)
{
s = 100;
}
if (l > 100)
{
l = 100;
}
if (h > 359)
{
h = 100;
}
// Define some variables
double red = 0;
double green = 0;
double blue = 0;
if (s != 0)
{
s /= 100.0;
}
if (l != 0)
{
l /= 100.0;
}
// First, we find chroma
double chroma = s *(1 - this->abs_value(2 *l - 1));
double h1 = h / 60.0;
// find match value
double m = l - (chroma / 2);
//intermediate value X for the second largest component of color
double x = chroma *(1.0 - this->abs_value(fmod(h1 , 2) - 1.0));
if (h1 >= 0.0 && h1 <= 1.0)
{
green = x;
red = chroma;
}
else if (h1 >= 1.0 && h1 <= 1.0)
{
red = x;
green = chroma;
}
else if (h1 >= 2.0 && h1 < 3.0)
{
blue = x;
green = chroma;
}
else if (h1 >= 3.0 && h1 < 4.0)
{
green = x;
blue = chroma;
}
else if (h1 >= 4.0 && h1 < 5.0)
{
red = x;
blue = chroma;
}
else
{
blue = x;
red = chroma;
}
// Adding the same amount to each component (m)
red += m;
green += m;
blue += m;
// Multiply by 255
red *= 255.0;
green *= 255.0;
blue *= 255.0;
// Get the actual result values
int r = this->round_value(red);
int g = this->round_value(green);
int b = this->round_value(blue);
// Display Calculate results
cout << "\n Calculate RGB";
cout << "\n R = " << r;
cout << "\n G = " << g;
cout << "\n B = " << b << " \n\n";
}
};
int main()
{
ColorConversion color = ColorConversion();
// Test Case
color.hsv_to_rgb(34, 64, 13);
color.hsv_to_rgb(56, 64.64, 43.24);
return 0;
}Output
Given HSL
H = 34 °
S = 64 %
L = 13 %
Calculate RGB
R = 54
G = 36
B = 12
Given HSL
H = 56 °
S = 64.64 %
L = 43.24 %
Calculate RGB
R = 182
G = 172
B = 39
// Include namespace system
using System;
/*
C# Program
CMYK to RGB color
*/
public class ColorConversion
{
// Returns absolute value
public double abs_value(double value)
{
if (value < 0.0)
{
return -value;
}
else
{
return value;
}
}
public int round_value(double num)
{
if (num < 0)
{
return (int)(num - 0.5);
}
else
{
return (int)(num + 0.5);
}
}
// Convert HSL to RGB
public void hsv_to_rgb(double h, double s, double l)
{
if (h < 0 || s < 0 || l < 0)
{
return;
}
// Display Given data
Console.Write(" Given HSL ");
// hue
Console.Write("\n H = " + h + " °");
// saturation
Console.Write("\n S = " + s + " % ");
// lightness
Console.Write("\n L = " + l + " % ");
if (s > 100)
{
s = 100;
}
if (l > 100)
{
l = 100;
}
if (h > 359)
{
h = 100;
}
// Define some variables
double red = 0;
double green = 0;
double blue = 0;
if (s != 0)
{
s /= 100.0;
}
if (l != 0)
{
l /= 100.0;
}
// First, we find chroma
double chroma = s * (1 - abs_value(2 * l - 1));
double h1 = h / 60.0;
// find match value
double m = l - (chroma / 2);
//intermediate value X for the second largest component of color
double x = chroma * (1.0 - abs_value((h1 % 2) - 1.0));
if (h1 >= 0.0 && h1 <= 1.0)
{
green = x;
red = chroma;
}
else if (h1 >= 1.0 && h1 <= 1.0)
{
red = x;
green = chroma;
}
else if (h1 >= 2.0 && h1 < 3.0)
{
blue = x;
green = chroma;
}
else if (h1 >= 3.0 && h1 < 4.0)
{
green = x;
blue = chroma;
}
else if (h1 >= 4.0 && h1 < 5.0)
{
red = x;
blue = chroma;
}
else
{
blue = x;
red = chroma;
}
// Adding the same amount to each component (m)
red += m;
green += m;
blue += m;
// Multiply by 255
red *= 255.0;
green *= 255.0;
blue *= 255.0;
// Get the actual result values
int r = round_value(red);
int g = round_value(green);
int b = round_value(blue);
// Display Calculate results
Console.Write("\n Calculate RGB");
Console.Write("\n R = " + r);
Console.Write("\n G = " + g);
Console.Write("\n B = " + b + " \n\n");
}
public static void Main(String[] args)
{
ColorConversion color = new ColorConversion();
// Test Case
color.hsv_to_rgb(34, 64, 13);
color.hsv_to_rgb(56, 64.64, 43.24);
}
}Output
Given HSL
H = 34 °
S = 64 %
L = 13 %
Calculate RGB
R = 54
G = 36
B = 12
Given HSL
H = 56 °
S = 64.64 %
L = 43.24 %
Calculate RGB
R = 182
G = 172
B = 39
<?php
/*
Php Program
CMYK to RGB color
*/
class ColorConversion
{
// Returns absolute value
public function abs_value($value)
{
if ($value < 0.0)
{
return -$value;
}
else
{
return $value;
}
}
public function round_value($num)
{
if ($num < 0)
{
return (int)($num - 0.5);
}
else
{
return (int)($num + 0.5);
}
}
// Convert HSL to RGB
public function hsv_to_rgb($h, $s, $l)
{
if ($h < 0 || $s < 0 || $l < 0)
{
return;
}
// Display Given data
echo " Given HSL ";
// hue
echo "\n H = ". $h ." °";
// saturation
echo "\n S = ". $s ." % ";
// lightness
echo "\n L = ". $l ." % ";
if ($s > 100)
{
$s = 100;
}
if ($l > 100)
{
$l = 100;
}
if ($h > 359)
{
$h = 100;
}
// Define some variables
$red = 0;
$green = 0;
$blue = 0;
if ($s != 0)
{
$s = ($s / 100.0);
}
if ($l != 0)
{
$l = ($l / 100.0);
}
// First, we find chroma
$chroma = $s * (1 - $this->abs_value(2 * $l - 1));
$h1 = ($h / 60.0);
// find match value
$m = $l - (($chroma / 2));
//intermediate value X for the second largest component of color
$x = $chroma * (1.0 - $this->abs_value(fmod($h1 , 2) - 1.0));
if ($h1 >= 0.0 && $h1 <= 1.0)
{
$green = $x;
$red = $chroma;
}
else if ($h1 >= 1.0 && $h1 <= 1.0)
{
$red = $x;
$green = $chroma;
}
else if ($h1 >= 2.0 && $h1 < 3.0)
{
$blue = $x;
$green = $chroma;
}
else if ($h1 >= 3.0 && $h1 < 4.0)
{
$green = $x;
$blue = $chroma;
}
else if ($h1 >= 4.0 && $h1 < 5.0)
{
$red = $x;
$blue = $chroma;
}
else
{
$blue = $x;
$red = $chroma;
}
// Adding the same amount to each component (m)
$red += $m;
$green += $m;
$blue += $m;
// Multiply by 255
$red *= 255.0;
$green *= 255.0;
$blue *= 255.0;
// Get the actual result values
$r = $this->round_value($red);
$g = $this->round_value($green);
$b = $this->round_value($blue);
// Display Calculate results
echo "\n Calculate RGB";
echo "\n R = ". $r;
echo "\n G = ". $g;
echo "\n B = ". $b ." \n\n";
}
}
function main()
{
$color = new ColorConversion();
// Test Case
$color->hsv_to_rgb(34, 64, 13);
$color->hsv_to_rgb(56, 64.64, 43.24);
}
main();Output
Given HSL
H = 34 °
S = 64 %
L = 13 %
Calculate RGB
R = 54
G = 36
B = 12
Given HSL
H = 56 °
S = 64.64 %
L = 43.24 %
Calculate RGB
R = 182
G = 172
B = 39
/*
Node Js Program
CMYK to RGB color
*/
class ColorConversion
{
// Returns absolute value
abs_value(value)
{
if (value < 0.0)
{
return -value;
}
else
{
return value;
}
}
round_value(num)
{
if (num < 0)
{
return parseInt((num - 0.5));
}
else
{
return parseInt((num + 0.5));
}
}
// Convert HSL to RGB
hsv_to_rgb(h, s, l)
{
if (h < 0 || s < 0 || l < 0)
{
return;
}
// Display Given data
process.stdout.write(" Given HSL ");
// hue
process.stdout.write("\n H = " + h + " °");
// saturation
process.stdout.write("\n S = " + s + " % ");
// lightness
process.stdout.write("\n L = " + l + " % ");
if (s > 100)
{
s = 100;
}
if (l > 100)
{
l = 100;
}
if (h > 359)
{
h = 100;
}
// Define some variables
var red = 0;
var green = 0;
var blue = 0;
if (s != 0)
{
s = (s / 100.0);
}
if (l != 0)
{
l = (l / 100.0);
}
// First, we find chroma
var chroma = s * (1 - this.abs_value(2 * l - 1));
var h1 = (h / 60.0);
// find match value
var m = l - ((chroma / 2));
//intermediate value X for the second largest component of color
var x = chroma * (1.0 - this.abs_value((h1 % 2) - 1.0));
if (h1 >= 0.0 && h1 <= 1.0)
{
green = x;
red = chroma;
}
else if (h1 >= 1.0 && h1 <= 1.0)
{
red = x;
green = chroma;
}
else if (h1 >= 2.0 && h1 < 3.0)
{
blue = x;
green = chroma;
}
else if (h1 >= 3.0 && h1 < 4.0)
{
green = x;
blue = chroma;
}
else if (h1 >= 4.0 && h1 < 5.0)
{
red = x;
blue = chroma;
}
else
{
blue = x;
red = chroma;
}
// Adding the same amount to each component (m)
red += m;
green += m;
blue += m;
// Multiply by 255
red *= 255.0;
green *= 255.0;
blue *= 255.0;
// Get the actual result values
var r = this.round_value(red);
var g = this.round_value(green);
var b = this.round_value(blue);
// Display Calculate results
process.stdout.write("\n Calculate RGB");
process.stdout.write("\n R = " + r);
process.stdout.write("\n G = " + g);
process.stdout.write("\n B = " + b + " \n\n");
}
}
function main()
{
var color = new ColorConversion();
// Test Case
color.hsv_to_rgb(34, 64, 13);
color.hsv_to_rgb(56, 64.64, 43.24);
}
main();Output
Given HSL
H = 34 °
S = 64 %
L = 13 %
Calculate RGB
R = 54
G = 36
B = 12
Given HSL
H = 56 °
S = 64.64 %
L = 43.24 %
Calculate RGB
R = 182
G = 172
B = 39
# Python 3 Program
# CMYK to RGB color
class ColorConversion :
# Returns absolute value
def abs_value(self, value) :
if (value < 0.0) :
return -value
else :
return value
def round_value(self, num) :
if (num < 0) :
return int((num - 0.5))
else :
return int((num + 0.5))
# Convert HSL to RGB
def hsv_to_rgb(self, h, s, l) :
if (h < 0 or s < 0 or l < 0) :
return
# Display Given data
print(" Given HSL ", end = "")
# hue
print("\n H = ", h ," °", end = "")
# saturation
print("\n S = ", s ," % ", end = "")
# lightness
print("\n L = ", l ," % ", end = "")
if (s > 100) :
s = 100
if (l > 100) :
l = 100
if (h > 359) :
h = 100
# Define some variables
red = 0
green = 0
blue = 0
if (s != 0) :
s = (s / 100.0)
if (l != 0) :
l = (l / 100.0)
# First, we find chroma
chroma = s * (1 - self.abs_value(2 * l - 1))
h1 = (h / 60.0)
# find match value
m = l - ((chroma / 2))
# intermediate value X for the second largest component of color
x = chroma * (1.0 - self.abs_value((h1 % 2) - 1.0))
if (h1 >= 0.0 and h1 <= 1.0) :
green = x
red = chroma
elif(h1 >= 1.0 and h1 <= 1.0) :
red = x
green = chroma
elif(h1 >= 2.0 and h1 < 3.0) :
blue = x
green = chroma
elif(h1 >= 3.0 and h1 < 4.0) :
green = x
blue = chroma
elif(h1 >= 4.0 and h1 < 5.0) :
red = x
blue = chroma
else :
blue = x
red = chroma
# Adding the same amount to each component (m)
red += m
green += m
blue += m
# Multiply by 255
red *= 255.0
green *= 255.0
blue *= 255.0
# Get the actual result values
r = self.round_value(red)
g = self.round_value(green)
b = self.round_value(blue)
# Display Calculate results
print("\n Calculate RGB", end = "")
print("\n R = ", r, end = "")
print("\n G = ", g, end = "")
print("\n B = ", b ," \n")
def main() :
color = ColorConversion()
# Test Case
color.hsv_to_rgb(34, 64, 13)
color.hsv_to_rgb(56, 64.64, 43.24)
if __name__ == "__main__": main()Output
Given HSL
H = 34 °
S = 64 %
L = 13 %
Calculate RGB
R = 54
G = 36
B = 12
Given HSL
H = 56 °
S = 64.64 %
L = 43.24 %
Calculate RGB
R = 182
G = 172
B = 39
# Ruby Program
# CMYK to RGB color
class ColorConversion
# Returns absolute value
def abs_value(value)
if (value < 0.0)
return -value
else
return value
end
end
def round_value(num)
if (num < 0)
return ((num - 0.5)).to_i
else
return ((num + 0.5)).to_i
end
end
# Convert HSL to RGB
def hsv_to_rgb(h, s, l)
if (h < 0 || s < 0 || l < 0)
return
end
# Display Given data
print(" Given HSL ")
# hue
print("\n H = ", h ," °")
# saturation
print("\n S = ", s ," % ")
# lightness
print("\n L = ", l ," % ")
if (s > 100)
s = 100
end
if (l > 100)
l = 100
end
if (h > 359)
h = 100
end
# Define some variables
red = 0
green = 0
blue = 0
if (s != 0)
s /= 100.0
end
if (l != 0)
l /= 100.0
end
# First, we find chroma
chroma = s * (1 - self.abs_value(2 * l - 1))
h1 = h / 60.0
# find match value
m = l - (chroma / 2)
# intermediate value X for the second largest component of color
x = chroma * (1.0 - self.abs_value((h1 % 2) - 1.0))
if (h1 >= 0.0 && h1 <= 1.0)
green = x
red = chroma
elsif(h1 >= 1.0 && h1 <= 1.0)
red = x
green = chroma
elsif(h1 >= 2.0 && h1 < 3.0)
blue = x
green = chroma
elsif(h1 >= 3.0 && h1 < 4.0)
green = x
blue = chroma
elsif(h1 >= 4.0 && h1 < 5.0)
red = x
blue = chroma
else
blue = x
red = chroma
end
# Adding the same amount to each component (m)
red += m
green += m
blue += m
# Multiply by 255
red *= 255.0
green *= 255.0
blue *= 255.0
# Get the actual result values
r = self.round_value(red)
g = self.round_value(green)
b = self.round_value(blue)
# Display Calculate results
print("\n Calculate RGB")
print("\n R = ", r)
print("\n G = ", g)
print("\n B = ", b ," \n\n")
end
end
def main()
color = ColorConversion.new()
# Test Case
color.hsv_to_rgb(34, 64, 13)
color.hsv_to_rgb(56, 64.64, 43.24)
end
main()Output
Given HSL
H = 34 °
S = 64 %
L = 13 %
Calculate RGB
R = 54
G = 36
B = 12
Given HSL
H = 56 °
S = 64.64 %
L = 43.24 %
Calculate RGB
R = 182
G = 172
B = 39
/*
Scala Program
CMYK to RGB color
*/
class ColorConversion
{
// Returns absolute value
def abs_value(value: Double): Double = {
if (value < 0.0)
{
return -value;
}
else
{
return value;
}
}
def round_value(num: Double): Int = {
if (num < 0)
{
return ((num - 0.5)).toInt;
}
else
{
return ((num + 0.5)).toInt;
}
}
// Convert HSL to RGB
def hsv_to_rgb(hue: Double, saturation: Double, lightness: Double): Unit = {
if (hue < 0 || saturation < 0 || lightness < 0)
{
return;
}
// Display Given data
print(" Given HSL ");
// hue
print("\n H = " + hue + " °");
// saturation
print("\n S = " + saturation + " % ");
// lightness
print("\n L = " + lightness + " % ");
var s = saturation;
var l = lightness;
var h = hue;
if (s > 100.0)
{
s = 100.0;
}
if (l > 100)
{
l = 100.0;
}
if (h > 359)
{
h = 100.0;
}
// Define some variables
var red: Double = 0;
var green: Double = 0;
var blue: Double = 0;
if (s != 0)
{
s = (s / 100.0);
}
if (l != 0)
{
l = (l / 100.0);
}
// First, we find chroma
var chroma: Double = s * (1 - this.abs_value(2 * l - 1));
var h1: Double = (h / 60.0);
// find match value
var m: Double = l - (chroma / 2);
//intermediate value X for the second largest component of color
var x: Double = chroma * (1.0 - this.abs_value((h1 % 2) - 1.0));
if (h1 >= 0.0 && h1 <= 1.0)
{
green = x;
red = chroma;
}
else if (h1 >= 1.0 && h1 <= 1.0)
{
red = x;
green = chroma;
}
else if (h1 >= 2.0 && h1 < 3.0)
{
blue = x;
green = chroma;
}
else if (h1 >= 3.0 && h1 < 4.0)
{
green = x;
blue = chroma;
}
else if (h1 >= 4.0 && h1 < 5.0)
{
red = x;
blue = chroma;
}
else
{
blue = x;
red = chroma;
}
// Adding the same amount to each component (m)
red += m;
green += m;
blue += m;
// Multiply by 255
red *= 255.0;
green *= 255.0;
blue *= 255.0;
// Get the actual result values
var r: Int = this.round_value(red);
var g: Int = this.round_value(green);
var b: Int = this.round_value(blue);
// Display Calculate results
print("\n Calculate RGB");
print("\n R = " + r);
print("\n G = " + g);
print("\n B = " + b + " \n\n");
}
}
object Main
{
def main(args: Array[String]): Unit = {
var color: ColorConversion = new ColorConversion();
// Test Case
color.hsv_to_rgb(34, 64, 13);
color.hsv_to_rgb(56, 64.64, 43.24);
}
}Output
Given HSL
H = 34.0 °
S = 64.0 %
L = 13.0 %
Calculate RGB
R = 54
G = 36
B = 12
Given HSL
H = 56.0 °
S = 64.64 %
L = 43.24 %
Calculate RGB
R = 182
G = 172
B = 39
/*
Swift 4 Program
CMYK to RGB color
*/
class ColorConversion
{
// Returns absolute value
func abs_value(_ value: Double)->Double
{
if (value < 0.0)
{
return -value;
}
else
{
return value;
}
}
func round_value(_ num: Double)->Int
{
if (num < 0)
{
return Int(num - 0.5);
}
else
{
return Int(num + 0.5);
}
}
// Convert HSL to RGB
func hsv_to_rgb(_ hue: Double, _ saturation: Double, _ lightness: Double)
{
var s = saturation;
var l = lightness;
var h = hue;
if (h < 0 || s < 0 || l < 0)
{
return;
}
// Display Given data
print(" Given HSL ", terminator: "");
// hue
print("\n H = ", h, " °", terminator: "");
// saturation
print("\n S = ", s, " % ", terminator: "");
// lightness
print("\n L = ", l, " % ", terminator: "");
if (s > 100)
{
s = 100;
}
if (l > 100)
{
l = 100;
}
if (h > 359)
{
h = 100;
}
// Define some variables
var red: Double = 0;
var green: Double = 0;
var blue: Double = 0;
if (s != 0)
{
s /= 100.0;
}
if (l != 0)
{
l /= 100.0;
}
// First, we find chroma
let chroma: Double = s * (1 - self.abs_value(2 * l - 1));
let h1: Double = h / 60.0;
// find match value
let m: Double = l - (chroma / 2);
//intermediate value X for the second largest component of color
let x: Double = chroma * (1.0 - self.abs_value((h1.truncatingRemainder(dividingBy: 2)) - 1.0));
if (h1 >= 0.0 && h1 <= 1.0)
{
green = x;
red = chroma;
}
else if (h1 >= 1.0 && h1 <= 1.0)
{
red = x;
green = chroma;
}
else if (h1 >= 2.0 && h1 < 3.0)
{
blue = x;
green = chroma;
}
else if (h1 >= 3.0 && h1 < 4.0)
{
green = x;
blue = chroma;
}
else if (h1 >= 4.0 && h1 < 5.0)
{
red = x;
blue = chroma;
}
else
{
blue = x;
red = chroma;
}
// Adding the same amount to each component (m)
red += m;
green += m;
blue += m;
// Multiply by 255
red *= 255.0;
green *= 255.0;
blue *= 255.0;
// Get the actual result values
let r: Int = self.round_value(red);
let g: Int = self.round_value(green);
let b: Int = self.round_value(blue);
// Display Calculate results
print("\n Calculate RGB", terminator: "");
print("\n R = ", r, terminator: "");
print("\n G = ", g, terminator: "");
print("\n B = ", b, " \n");
}
}
func main()
{
let color: ColorConversion = ColorConversion();
// Test Case
color.hsv_to_rgb(34, 64, 13);
color.hsv_to_rgb(56, 64.64, 43.24);
}
main();Output
Given HSL
H = 34.0 °
S = 64.0 %
L = 13.0 %
Calculate RGB
R = 54
G = 36
B = 12
Given HSL
H = 56.0 °
S = 64.64 %
L = 43.24 %
Calculate RGB
R = 182
G = 172
B = 39
/*
Kotlin Program
CMYK to RGB color
*/
class ColorConversion
{
// Returns absolute value
fun abs_value(value: Double): Double
{
if (value<0.0)
{
return -value;
}
else
{
return value;
}
}
fun round_value(num: Double): Int
{
if (num<0.0)
{
return (num - 0.5).toInt();
}
else
{
return (num + 0.5).toInt();
}
}
// Convert HSL to RGB
fun hsv_to_rgb(hue: Any, saturation: Any, lightness: Any): Unit
{
var s: Double = saturation.toString().toDouble();
var l: Double = lightness.toString().toDouble();
var h: Double = hue.toString().toDouble();
if (h<0.0 || s<0.0 || l<0.0)
{
return;
}
// Display Given data
print(" Given HSL ");
// hue
print("\n H = " + h + " °");
// saturation
print("\n S = " + s + " % ");
// lightness
print("\n L = " + l + " % ");
if (s>100.0)
{
s = 100.0;
}
if (l>100.0)
{
l = 100.0;
}
if (h > 359.0)
{
h = 100.0;
}
// Define some variables
var red: Double = 0.0;
var green: Double = 0.0;
var blue: Double = 0.0;
if (s != 0.0)
{
s /= 100.0;
}
if (l != 0.0)
{
l /= 100.0;
}
// First, we find chroma
var chroma: Double = s * (1 - this.abs_value(2 * l - 1));
var h1: Double = h / 60.0;
// find match value
var m: Double = l - (chroma / 2);
//intermediate value X for the second largest component of color
var x: Double = chroma * (1.0 - this.abs_value((h1 % 2) - 1.0));
if (h1>= 0.0 && h1 <= 1.0)
{
green = x;
red = chroma;
}
else
if (h1>= 1.0 && h1 <= 1.0)
{
red = x;
green = chroma;
}
else
if (h1>= 2.0 && h1<3.0)
{
blue = x;
green = chroma;
}
else
if (h1>= 3.0 && h1<4.0)
{
green = x;
blue = chroma;
}
else
if (h1>= 4.0 && h1<5.0)
{
red = x;
blue = chroma;
}
else
{
blue = x;
red = chroma;
}
// Adding the same amount to each component (m)
red += m;
green += m;
blue += m;
// Multiply by 255
red *= 255.0;
green *= 255.0;
blue *= 255.0;
// Get the actual result values
var r: Int = this.round_value(red);
var g: Int = this.round_value(green);
var b: Int = this.round_value(blue);
// Display Calculate results
print("\n Calculate RGB");
print("\n R = " + r);
print("\n G = " + g);
print("\n B = " + b + " \n\n");
}
}
fun main(args: Array<String>): Unit
{
var color: ColorConversion = ColorConversion();
// Test Case
color.hsv_to_rgb(34, 64, 13);
color.hsv_to_rgb(56, 64.64, 43.24);
}Output
Given HSL
H = 34.0 °
S = 64.0 %
L = 13.0 %
Calculate RGB
R = 54
G = 36
B = 12
Given HSL
H = 56.0 °
S = 64.64 %
L = 43.24 %
Calculate RGB
R = 182
G = 172
B = 39
Explanation of Result
For the given HSL values:
- Hue (H) = 34
- Saturation (S) = 64%
- Lightness (L) = 13%
The calculated RGB values are:
- R = 54
- G = 36
- B = 12
This means that the corresponding RGB color is (54, 36, 12).
Similarly, for the second set of HSL values:
- Hue (H) = 56
- Saturation (S) = 64.64%
- Lightness (L) = 43.24%
The calculated RGB values are:
- R = 182
- G = 172
- B = 39
So, the corresponding RGB color is (182, 172, 39).
Time Complexity
The time complexity of the provided code is relatively low. Since it involves basic mathematical operations and a few conditional statements, the time complexity can be considered to be O(1) or constant time.
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