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Convert.html
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<!DOCTYPE html>
<html>
<head>
<meta charset='UTF-8'>
<title>CamanJS Documentation</title>
<link rel='stylesheet' href='../../assets/codo.css' type='text/css'>
<script src='../../assets/codo.js'></script>
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<a href='../../README.md.html' title='CamanJS'>CamanJS</a>
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<span class='title'>Convert</span>
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<div id='content'>
<h1>
Class:
Caman.Convert
</h1>
<table class='box'>
<tr>
<td>Defined in:</td>
<td>src/core/convert.coffee</td>
</tr>
</table>
<h2>Overview</h2>
<div class='docstring'>
<p>Tons of color conversion utility functions.</p>
</div>
<div class='tags'>
</div>
<h2>Class Method Summary</h2>
<ul class='summary'>
<li>
<span class='signature'>
<a href='#hexToRGB-class'>
+ (Array) <strong>hexToRGB</strong>(hex)
</a>
</span>
<span class='desc'>
Converts the hex representation of a color to RGB values.
</span>
</li>
<li>
<span class='signature'>
<a href='#rgbToHSL-class'>
+ (Array) <strong>rgbToHSL</strong>(r, g, b)
</a>
</span>
<span class='desc'>
Converts an RGB color to HSL.
</span>
</li>
<li>
<span class='signature'>
<a href='#hslToRGB-class'>
+ (Array) <strong>hslToRGB</strong>(h, s, l)
</a>
</span>
<span class='desc'>
Converts an HSL color value to RGB.
</span>
</li>
<li>
<span class='signature'>
<a href='#hueToRGB-class'>
+ (Number) <strong>hueToRGB</strong>(p, q, t)
</a>
</span>
<span class='desc'>
Converts from the hue color space back to RGB.
</span>
</li>
<li>
<span class='signature'>
<a href='#rgbToHSV-class'>
+ (Array) <strong>rgbToHSV</strong>(r, g, b)
</a>
</span>
<span class='desc'>
Converts an RGB color value to HSV.
</span>
</li>
<li>
<span class='signature'>
<a href='#hsvToRGB-class'>
+ (Array) <strong>hsvToRGB</strong>(h, s, v)
</a>
</span>
<span class='desc'>
Converts an HSV color value to RGB.
</span>
</li>
<li>
<span class='signature'>
<a href='#rgbToXYZ-class'>
+ (Array) <strong>rgbToXYZ</strong>(r, g, b)
</a>
</span>
<span class='desc'>
Converts a RGB color value to the XYZ color space.
</span>
</li>
<li>
<span class='signature'>
<a href='#xyzToRGB-class'>
+ (Array) <strong>xyzToRGB</strong>(x, y, z)
</a>
</span>
<span class='desc'>
Converts a XYZ color value to the sRGB color space.
</span>
</li>
<li>
<span class='signature'>
<a href='#xyzToLab-class'>
+ (Array) <strong>xyzToLab</strong>(x, y, z)
</a>
</span>
<span class='desc'>
Converts a XYZ color value to the CIELAB color space.
</span>
</li>
<li>
<span class='signature'>
<a href='#labToXYZ-class'>
+ (Array) <strong>labToXYZ</strong>(l, a, b)
</a>
</span>
<span class='desc'>
Converts a L<em>, a</em>, b* color values from the CIELAB color space to the XYZ color space.
</span>
</li>
<li>
<span class='signature'>
<a href='#rgbToLab-class'>
+ (void) <strong>rgbToLab</strong>(r, g, b)
</a>
</span>
<span class='desc'>
Converts L<em>, a</em>, b* back to RGB values.
</span>
</li>
<li>
<span class='signature'>
<a href='#labToRGB-class'>
+ (void) <strong>labToRGB</strong>(l, a, b)
</a>
</span>
<span class='desc'>
</span>
</li>
</ul>
<h2>Class Method Details</h2>
<div class='methods'>
<div class='method_details'>
<p class='signature' id='hexToRGB-class'>
+ (Array) <strong>hexToRGB</strong>(hex)
</p>
<div class='docstring'>
<p>Converts the hex representation of a color to RGB values.
Hex value can optionally start with the hash (#).</p>
</div>
<div class='tags'>
<h3>Parameters:</h3>
<ul class='param'>
<li>
<span class='name'>hex</span>
<span class='type'>
(<tt>String</tt>)
</span>
—
<span class='desc'>The colors hex value</span>
</li>
</ul>
<h3>Returns:</h3>
<ul class='return'>
<li>
<span class='type'></span>
(<tt>Array</tt>)
—
<span class='desc'>The RGB representation</span>
</li>
</ul>
</div>
</div>
<div class='method_details'>
<p class='signature' id='rgbToHSL-class'>
+ (Array) <strong>rgbToHSL</strong>(r, g, b)
<br>
+ (Array) <strong>rgbToHSL</strong>(rgb)
<br>
</p>
<div class='docstring'>
<p>Converts an RGB color to HSL.
Assumes r, g, and b are in the set [0, 255] and
returns h, s, and l in the set [0, 1].</p>
</div>
<div class='tags'>
<h3>Returns:</h3>
<ul class='return'>
<li>
<span class='type'></span>
(<tt>Array</tt>)
—
<span class='desc'>The HSL representation</span>
</li>
</ul>
<div class='overloads'>
<h3>Overloads:</h3>
<div class='overload'>
<p class='signature'>
+ (Array) <strong>rgbToHSL</strong>(r, g, b)
</p>
<div class='tags'>
<h3>Parameters:</h3>
<ul class='param'>
<li>
<span class='name'>r</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>Red channel</span>
</li>
<li>
<span class='name'>g</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>Green channel</span>
</li>
<li>
<span class='name'>b</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>Blue channel</span>
</li>
</ul>
</div>
</div>
<div class='overload'>
<p class='signature'>
+ (Array) <strong>rgbToHSL</strong>(rgb)
</p>
<div class='tags'>
<h3>Parameters:</h3>
<ul class='param'>
<li>
<span class='name'>rgb</span>
<span class='type'>
(<tt>Object</tt>)
</span>
—
<span class='desc'>The RGB object.</span>
</li>
</ul>
<h3>
Options Hash:
(rgb):
</h3>
<ul class='options'>
<li>
<span class='name'>r</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The red channel.</span>
</li>
<li>
<span class='name'>g</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The green channel.</span>
</li>
<li>
<span class='name'>b</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The blue channel.</span>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
<div class='method_details'>
<p class='signature' id='hslToRGB-class'>
+ (Array) <strong>hslToRGB</strong>(h, s, l)
<br>
+ (Array) <strong>hslToRGB</strong>(hsl)
<br>
</p>
<div class='docstring'>
<p>Converts an HSL color value to RGB. Conversion formula
adapted from <a href="http://en.wikipedia.org/wiki/HSL_color_space">http://en.wikipedia.org/wiki/HSL_color_space</a>.
Assumes h, s, and l are contained in the set [0, 1] and
returns r, g, and b in the set [0, 255].</p>
</div>
<div class='tags'>
<h3>Returns:</h3>
<ul class='return'>
<li>
<span class='type'></span>
(<tt>Array</tt>)
—
<span class='desc'>The RGB representation</span>
</li>
</ul>
<div class='overloads'>
<h3>Overloads:</h3>
<div class='overload'>
<p class='signature'>
+ (Array) <strong>hslToRGB</strong>(h, s, l)
</p>
<div class='tags'>
<h3>Parameters:</h3>
<ul class='param'>
<li>
<span class='name'>h</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The hue</span>
</li>
<li>
<span class='name'>s</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The saturation</span>
</li>
<li>
<span class='name'>l</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The lightness</span>
</li>
</ul>
</div>
</div>
<div class='overload'>
<p class='signature'>
+ (Array) <strong>hslToRGB</strong>(hsl)
</p>
<div class='tags'>
<h3>Parameters:</h3>
<ul class='param'>
<li>
<span class='name'>hsl</span>
<span class='type'>
(<tt>Object</tt>)
</span>
—
<span class='desc'>The HSL object.</span>
</li>
</ul>
<h3>
Options Hash:
(hsl):
</h3>
<ul class='options'>
<li>
<span class='name'>h</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The hue.</span>
</li>
<li>
<span class='name'>s</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The saturation.</span>
</li>
<li>
<span class='name'>l</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The lightness.</span>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
<div class='method_details'>
<p class='signature' id='hueToRGB-class'>
+ (Number) <strong>hueToRGB</strong>(p, q, t)
</p>
<div class='docstring'>
<p>Converts from the hue color space back to RGB.</p>
</div>
<div class='tags'>
<h3>Parameters:</h3>
<ul class='param'>
<li>
<span class='name'>p</span>
<span class='type'>
(<tt>Number</tt>)
</span>
</li>
<li>
<span class='name'>q</span>
<span class='type'>
(<tt>Number</tt>)
</span>
</li>
<li>
<span class='name'>t</span>
<span class='type'>
(<tt>Number</tt>)
</span>
</li>
</ul>
<h3>Returns:</h3>
<ul class='return'>
<li>
<span class='type'></span>
(<tt>Number</tt>)
—
<span class='desc'>RGB value</span>
</li>
</ul>
</div>
</div>
<div class='method_details'>
<p class='signature' id='rgbToHSV-class'>
+ (Array) <strong>rgbToHSV</strong>(r, g, b)
</p>
<div class='docstring'>
<p>Converts an RGB color value to HSV. Conversion formula
adapted from {<a href="http://en.wikipedia.org/wiki/HSV_color_space}">http://en.wikipedia.org/wiki/HSV_color_space}</a>.
Assumes r, g, and b are contained in the set [0, 255] and
returns h, s, and v in the set [0, 1].</p>
</div>
<div class='tags'>
<h3>Parameters:</h3>
<ul class='param'>
<li>
<span class='name'>r</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The red color value</span>
</li>
<li>
<span class='name'>g</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The green color value</span>
</li>
<li>
<span class='name'>b</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The blue color value</span>
</li>
</ul>
<h3>Returns:</h3>
<ul class='return'>
<li>
<span class='type'></span>
(<tt>Array</tt>)
—
<span class='desc'>The HSV representation</span>
</li>
</ul>
</div>
</div>
<div class='method_details'>
<p class='signature' id='hsvToRGB-class'>
+ (Array) <strong>hsvToRGB</strong>(h, s, v)
</p>
<div class='docstring'>
<p>Converts an HSV color value to RGB. Conversion formula
adapted from <a href="http://en.wikipedia.org/wiki/HSV_color_space">http://en.wikipedia.org/wiki/HSV_color_space</a>.
Assumes h, s, and v are contained in the set [0, 1] and
returns r, g, and b in the set [0, 255].</p>
</div>
<div class='tags'>
<h3>Parameters:</h3>
<ul class='param'>
<li>
<span class='name'>h</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The hue</span>
</li>
<li>
<span class='name'>s</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The saturation</span>
</li>
<li>
<span class='name'>v</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The value</span>
</li>
</ul>
<h3>Returns:</h3>
<ul class='return'>
<li>
<span class='type'></span>
(<tt>Array</tt>)
—
<span class='desc'>The RGB representation</span>
</li>
</ul>
</div>
</div>
<div class='method_details'>
<p class='signature' id='rgbToXYZ-class'>
+ (Array) <strong>rgbToXYZ</strong>(r, g, b)
</p>
<div class='docstring'>
<p>Converts a RGB color value to the XYZ color space. Formulas
are based on <a href="http://en.wikipedia.org/wiki/SRGB">http://en.wikipedia.org/wiki/SRGB</a> assuming that
RGB values are sRGB.</p><p>Assumes r, g, and b are contained in the set [0, 255] and
returns x, y, and z.</p>
</div>
<div class='tags'>
<h3>Parameters:</h3>
<ul class='param'>
<li>
<span class='name'>r</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The red color value</span>
</li>
<li>
<span class='name'>g</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The green color value</span>
</li>
<li>
<span class='name'>b</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The blue color value</span>
</li>
</ul>
<h3>Returns:</h3>
<ul class='return'>
<li>
<span class='type'></span>
(<tt>Array</tt>)
—
<span class='desc'>The XYZ representation</span>
</li>
</ul>
</div>
</div>
<div class='method_details'>
<p class='signature' id='xyzToRGB-class'>
+ (Array) <strong>xyzToRGB</strong>(x, y, z)
</p>
<div class='docstring'>
<p>Converts a XYZ color value to the sRGB color space. Formulas
are based on <a href="http://en.wikipedia.org/wiki/SRGB">http://en.wikipedia.org/wiki/SRGB</a> and the resulting
RGB value will be in the sRGB color space.
Assumes x, y and z values are whatever they are and returns
r, g and b in the set [0, 255].</p>
</div>
<div class='tags'>
<h3>Parameters:</h3>
<ul class='param'>
<li>
<span class='name'>x</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The X value</span>
</li>
<li>
<span class='name'>y</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The Y value</span>
</li>
<li>
<span class='name'>z</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The Z value</span>
</li>
</ul>
<h3>Returns:</h3>
<ul class='return'>
<li>
<span class='type'></span>
(<tt>Array</tt>)
—
<span class='desc'>The RGB representation</span>
</li>
</ul>
</div>
</div>
<div class='method_details'>
<p class='signature' id='xyzToLab-class'>
+ (Array) <strong>xyzToLab</strong>(x, y, z)
<br>
+ (Array) <strong>xyzToLab</strong>(xyz)
<br>
</p>
<div class='docstring'>
<p>Converts a XYZ color value to the CIELAB color space. Formulas
are based on <a href="http://en.wikipedia.org/wiki/Lab_color_space">http://en.wikipedia.org/wiki/Lab_color_space</a>
The reference white point used in the conversion is D65.
Assumes x, y and z values are whatever they are and returns
L<em>, a</em> and b* values</p>
</div>
<div class='tags'>
<h3>Returns:</h3>
<ul class='return'>
<li>
<span class='type'></span>
(<tt>Array</tt>)
—
<span class='desc'>The Lab representation</span>
</li>
</ul>
<div class='overloads'>
<h3>Overloads:</h3>
<div class='overload'>
<p class='signature'>
+ (Array) <strong>xyzToLab</strong>(x, y, z)
</p>
<div class='tags'>
<h3>Parameters:</h3>
<ul class='param'>
<li>
<span class='name'>x</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The X value</span>
</li>
<li>
<span class='name'>y</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The Y value</span>
</li>
<li>
<span class='name'>z</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The Z value</span>
</li>
</ul>
</div>
</div>
<div class='overload'>
<p class='signature'>
+ (Array) <strong>xyzToLab</strong>(xyz)
</p>
<div class='tags'>
<h3>Parameters:</h3>
<ul class='param'>
<li>
<span class='name'>xyz</span>
<span class='type'>
(<tt>Object</tt>)
</span>
—
<span class='desc'>The XYZ object.</span>
</li>
</ul>
<h3>
Options Hash:
(xyz):
</h3>
<ul class='options'>
<li>
<span class='name'>x</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The X value.</span>
</li>
<li>
<span class='name'>y</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The Y value.</span>
</li>
<li>
<span class='name'>z</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The z value.</span>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
<div class='method_details'>
<p class='signature' id='labToXYZ-class'>
+ (Array) <strong>labToXYZ</strong>(l, a, b)
<br>
+ (Array) <strong>labToXYZ</strong>(lab)
<br>
</p>
<div class='docstring'>
<p>Converts a L<em>, a</em>, b* color values from the CIELAB color space
to the XYZ color space. Formulas are based on
<a href="http://en.wikipedia.org/wiki/Lab_color_space">http://en.wikipedia.org/wiki/Lab_color_space</a></p><p>The reference white point used in the conversion is D65.
Assumes L<em>, a</em> and b* values are whatever they are and returns
x, y and z values.</p>
</div>
<div class='tags'>
<h3>Returns:</h3>
<ul class='return'>
<li>
<span class='type'></span>
(<tt>Array</tt>)
—
<span class='desc'>The XYZ representation</span>
</li>
</ul>
<div class='overloads'>
<h3>Overloads:</h3>
<div class='overload'>
<p class='signature'>
+ (Array) <strong>labToXYZ</strong>(l, a, b)
</p>
<div class='tags'>
<h3>Parameters:</h3>
<ul class='param'>
<li>
<span class='name'>l</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The L* value</span>
</li>
<li>
<span class='name'>a</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The a* value</span>
</li>
<li>
<span class='name'>b</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The b* value</span>
</li>
</ul>
</div>
</div>
<div class='overload'>
<p class='signature'>
+ (Array) <strong>labToXYZ</strong>(lab)
</p>
<div class='tags'>
<h3>Parameters:</h3>
<ul class='param'>
<li>
<span class='name'>lab</span>
<span class='type'>
(<tt>Object</tt>)
</span>
—
<span class='desc'>The LAB values</span>
</li>
</ul>
<h3>
Options Hash:
(lab):
</h3>
<ul class='options'>
<li>
<span class='name'>l</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The L* value.</span>
</li>
<li>
<span class='name'>a</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The a* value.</span>
</li>
<li>
<span class='name'>b</span>
<span class='type'>
(<tt>Number</tt>)
</span>
—
<span class='desc'>The b* value.</span>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
<div class='method_details'>
<p class='signature' id='rgbToLab-class'>
+ (void) <strong>rgbToLab</strong>(r, g, b)
</p>
<div class='docstring'>
<p>Converts L<em>, a</em>, b* back to RGB values.</p>
</div>
<div class='tags'>
<h3>See also:</h3>
<ul class='see'>
<li>
Convert.rgbToXYZ
</li>
<li>
Convert.xyzToLab
</li>
</ul>
</div>
</div>
<div class='method_details'>
<p class='signature' id='labToRGB-class'>
+ (void) <strong>labToRGB</strong>(l, a, b)
</p>
<div class='tags'>
</div>
</div>
</div>
</div>
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