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data-event-name="pinnable-header.vector-toc.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">hide</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">(Top)</div> </a> </li> <li id="toc-Conversion_between_RGB_and_TSL" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Conversion_between_RGB_and_TSL"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Conversion between RGB and TSL</span> </div> </a> <ul id="toc-Conversion_between_RGB_and_TSL-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Advantages_of_TSL" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Advantages_of_TSL"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Advantages of TSL</span> </div> </a> <button aria-controls="toc-Advantages_of_TSL-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Advantages of TSL subsection</span> </button> <ul id="toc-Advantages_of_TSL-sublist" class="vector-toc-list"> <li id="toc-Comparison_of_TSL_to_other_color_spaces" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Comparison_of_TSL_to_other_color_spaces"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Comparison of TSL to other color spaces</span> </div> </a> <ul id="toc-Comparison_of_TSL_to_other_color_spaces-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Disadvantages_of_TSL" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Disadvantages_of_TSL"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Disadvantages of TSL</span> </div> </a> <ul id="toc-Disadvantages_of_TSL-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Applications" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Applications"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Applications</span> </div> </a> <ul id="toc-Applications-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 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space</a> which defines color as <a href="/wiki/Tint" class="mw-redirect" title="Tint">tint</a> (the degree to which a stimulus can be described as similar to or different from another stimuli that are described as <a href="/wiki/Red" title="Red">red</a>, <a href="/wiki/Green" title="Green">green</a>, <a href="/wiki/Blue" title="Blue">blue</a>, <a href="/wiki/Yellow" title="Yellow">yellow</a>, and <a href="/wiki/White" title="White">white</a>, can be thought of as <a href="/wiki/Hue" title="Hue">hue</a> with white added), <a href="/wiki/Saturation_(color_theory)" class="mw-redirect" title="Saturation (color theory)">saturation</a> (the <a href="/wiki/Colorfulness" title="Colorfulness">colorfulness</a> of a stimulus relative to its own <a href="/wiki/Brightness" title="Brightness">brightness</a>), and <a href="/wiki/Lightness" title="Lightness">lightness</a> (the brightness of a stimulus relative to a stimulus that appears white in similar viewing conditions). Proposed by <a href="/w/index.php?title=Jean-Christophe_Terrillon&action=edit&redlink=1" class="new" title="Jean-Christophe Terrillon (page does not exist)">Jean-Christophe Terrillon</a> and <a href="/w/index.php?title=Shigeru_Akamatsu&action=edit&redlink=1" class="new" title="Shigeru Akamatsu (page does not exist)">Shigeru Akamatsu</a>,<sup id="cite_ref-terrillon1_1-0" class="reference"><a href="#cite_note-terrillon1-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> TSL color space was developed primarily for the purpose of <a href="/wiki/Face_detection" title="Face detection">face detection</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Conversion_between_RGB_and_TSL">Conversion between RGB and TSL</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=TSL_color_space&action=edit&section=1" title="Edit section: Conversion between RGB and TSL"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Rg_normalized_color_coordinates.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/en/thumb/7/7b/Rg_normalized_color_coordinates.png/200px-Rg_normalized_color_coordinates.png" decoding="async" width="200" height="196" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/7/7b/Rg_normalized_color_coordinates.png/300px-Rg_normalized_color_coordinates.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/7/7b/Rg_normalized_color_coordinates.png/400px-Rg_normalized_color_coordinates.png 2x" data-file-width="1124" data-file-height="1104" /></a><figcaption>rg chromaticities</figcaption></figure> <p>The conversion from gamma-corrected <a href="/wiki/RGB" class="mw-redirect" title="RGB">RGB</a> values (0–1) to TSL is straightforward:<sup id="cite_ref-terrillon1_1-1" class="reference"><a href="#cite_note-terrillon1-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <ul><li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\textstyle T={\begin{cases}0.5-{\frac {\operatorname {atan2} (g',r')}{2\pi }},&{\mbox{if}}~g'\neq 0\\0,&{\mbox{if}}~g'=0\\\end{cases}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mi>T</mi> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mrow> <mo>{</mo> <mtable columnalign="left left" rowspacing=".2em" columnspacing="1em" displaystyle="false"> <mtr> <mtd> <mn>0.5</mn> <mo>−</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mi>atan2</mi> <mo>⁡</mo> <mo stretchy="false">(</mo> <msup> <mi>g</mi> <mo>′</mo> </msup> <mo>,</mo> <msup> <mi>r</mi> <mo>′</mo> </msup> <mo stretchy="false">)</mo> </mrow> <mrow> <mn>2</mn> <mi>π</mi> </mrow> </mfrac> </mrow> <mo>,</mo> </mtd> <mtd> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mtext>if</mtext> </mstyle> </mrow> <mtext> </mtext> <msup> <mi>g</mi> <mo>′</mo> </msup> <mo>≠</mo> <mn>0</mn> </mtd> </mtr> <mtr> <mtd> <mn>0</mn> <mo>,</mo> </mtd> <mtd> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mtext>if</mtext> </mstyle> </mrow> <mtext> </mtext> <msup> <mi>g</mi> <mo>′</mo> </msup> <mo>=</mo> <mn>0</mn> </mtd> </mtr> </mtable> <mo fence="true" stretchy="true" symmetric="true"></mo> </mrow> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\textstyle T={\begin{cases}0.5-{\frac {\operatorname {atan2} (g',r')}{2\pi }},&{\mbox{if}}~g'\neq 0\\0,&{\mbox{if}}~g'=0\\\end{cases}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/0d512115b35bd2bd9b68613c77fca0e1f3a2c02d" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -3.171ex; width:33.332ex; height:7.509ex;" alt="{\textstyle T={\begin{cases}0.5-{\frac {\operatorname {atan2} (g',r')}{2\pi }},&{\mbox{if}}~g'\neq 0\\0,&{\mbox{if}}~g'=0\\\end{cases}}}"></span> – the zero special case is to maintain the original behavior</li> <li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\textstyle S={\sqrt {{\frac {9}{5}}\left(r'^{2}+g'^{2}\right)}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mi>S</mi> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <msqrt> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mn>9</mn> <mn>5</mn> </mfrac> </mrow> <mrow> <mo>(</mo> <mrow> <msup> <mi>r</mi> <mrow> <mo class="MJX-variant">′</mo> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </mrow> </msup> <mo>+</mo> <msup> <mi>g</mi> <mrow> <mo class="MJX-variant">′</mo> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </mrow> </msup> </mrow> <mo>)</mo> </mrow> </msqrt> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\textstyle S={\sqrt {{\frac {9}{5}}\left(r'^{2}+g'^{2}\right)}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/ad8ba8262b3ce3846c5a6129a1c475b23e121826" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.671ex; width:18.797ex; height:4.676ex;" alt="{\textstyle S={\sqrt {{\frac {9}{5}}\left(r'^{2}+g'^{2}\right)}}}"></span></li> <li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\textstyle L=0.299R+0.587G+0.114B}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mi>L</mi> <mo>=</mo> <mn>0.299</mn> <mi>R</mi> <mo>+</mo> <mn>0.587</mn> <mi>G</mi> <mo>+</mo> <mn>0.114</mn> <mi>B</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\textstyle L=0.299R+0.587G+0.114B}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/e4d06054484f94dd07b330ff58e5547ed0b67159" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.505ex; width:31.607ex; height:2.343ex;" alt="{\textstyle L=0.299R+0.587G+0.114B}"></span> – the <a href="/wiki/Luma_(video)" title="Luma (video)">Luma</a></li></ul> <p>where: </p> <ul><li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\textstyle r={\tfrac {R}{R+G+B}},g={\tfrac {G}{R+G+B}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mi>r</mi> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mfrac> <mi>R</mi> <mrow> <mi>R</mi> <mo>+</mo> <mi>G</mi> <mo>+</mo> <mi>B</mi> </mrow> </mfrac> </mstyle> </mrow> <mo>,</mo> <mi>g</mi> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mfrac> <mi>G</mi> <mrow> <mi>R</mi> <mo>+</mo> <mi>G</mi> <mo>+</mo> <mi>B</mi> </mrow> </mfrac> </mstyle> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\textstyle r={\tfrac {R}{R+G+B}},g={\tfrac {G}{R+G+B}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/d073471e48838ffc65757dbd9cb223424ac2a491" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.505ex; width:23.755ex; height:4.009ex;" alt="{\textstyle r={\tfrac {R}{R+G+B}},g={\tfrac {G}{R+G+B}}}"></span> – the <a href="/wiki/Rg_chromaticity" title="Rg chromaticity">rg chromaticity</a></li> <li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\textstyle r'=r-{\tfrac {1}{3}},g'=g-{\tfrac {1}{3}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <msup> <mi>r</mi> <mo>′</mo> </msup> <mo>=</mo> <mi>r</mi> <mo>−</mo> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mfrac> <mn>1</mn> <mn>3</mn> </mfrac> </mstyle> </mrow> <mo>,</mo> <msup> <mi>g</mi> <mo>′</mo> </msup> <mo>=</mo> <mi>g</mi> <mo>−</mo> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mfrac> <mn>1</mn> <mn>3</mn> </mfrac> </mstyle> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\textstyle r'=r-{\tfrac {1}{3}},g'=g-{\tfrac {1}{3}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/056ce3e2f7588b017ec639358bc66c413b16550e" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.338ex; width:21.929ex; height:3.676ex;" alt="{\textstyle r'=r-{\tfrac {1}{3}},g'=g-{\tfrac {1}{3}}}"></span> – centering on white</li></ul> <p>Likewise, the reverse transform is as follows:<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p> <ul><li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\textstyle R=k\cdot r}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mi>R</mi> <mo>=</mo> <mi>k</mi> <mo>⋅</mo> <mi>r</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\textstyle R=k\cdot r}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/097efa6edc25b4536bdc2024c9d1ec8d07ecf1f9" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:8.801ex; height:2.176ex;" alt="{\textstyle R=k\cdot r}"></span></li> <li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\textstyle G=k\cdot g}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mi>G</mi> <mo>=</mo> <mi>k</mi> <mo>⋅</mo> <mi>g</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\textstyle G=k\cdot g}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/22520883b15c9f1170be505ec8410d5e74fb3fab" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:8.932ex; height:2.509ex;" alt="{\textstyle G=k\cdot g}"></span></li> <li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\textstyle B=k\cdot (1-r-g)}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mi>B</mi> <mo>=</mo> <mi>k</mi> <mo>⋅</mo> <mo stretchy="false">(</mo> <mn>1</mn> <mo>−</mo> <mi>r</mi> <mo>−</mo> <mi>g</mi> <mo stretchy="false">)</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\textstyle B=k\cdot (1-r-g)}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/5a422ffba14b3f0eb7aebc3b79c7a500380084a2" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:18.57ex; height:2.843ex;" alt="{\textstyle B=k\cdot (1-r-g)}"></span></li></ul> <p>where: </p> <ul><li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\textstyle r=r'+{\frac {1}{3}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mi>r</mi> <mo>=</mo> <msup> <mi>r</mi> <mo>′</mo> </msup> <mo>+</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mn>1</mn> <mn>3</mn> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\textstyle r=r'+{\frac {1}{3}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/c05469e5460e7c25947de3eb1a8599203a5a5587" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.338ex; width:10.379ex; height:3.676ex;" alt="{\textstyle r=r'+{\frac {1}{3}}}"></span></li> <li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\textstyle g=g'+{\frac {1}{3}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mi>g</mi> <mo>=</mo> <msup> <mi>g</mi> <mo>′</mo> </msup> <mo>+</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mn>1</mn> <mn>3</mn> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\textstyle g=g'+{\frac {1}{3}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/c53d8b115f028aa5637adb56fd2aba3f59344913" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.338ex; width:10.516ex; height:3.676ex;" alt="{\textstyle g=g'+{\frac {1}{3}}}"></span></li> <li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle r'={\sqrt {\frac {5S^{2}}{9(x^{-1}+1)}}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msup> <mi>r</mi> <mo>′</mo> </msup> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <msqrt> <mfrac> <mrow> <mn>5</mn> <msup> <mi>S</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mrow> <mrow> <mn>9</mn> <mo stretchy="false">(</mo> <msup> <mi>x</mi> <mrow class="MJX-TeXAtom-ORD"> <mo>−</mo> <mn>1</mn> </mrow> </msup> <mo>+</mo> <mn>1</mn> <mo stretchy="false">)</mo> </mrow> </mfrac> </msqrt> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle r'={\sqrt {\frac {5S^{2}}{9(x^{-1}+1)}}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/6b341222fd4fd778eaeb6960b6897977a7285fa1" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -3.338ex; width:18.629ex; height:7.676ex;" alt="{\displaystyle r'={\sqrt {\frac {5S^{2}}{9(x^{-1}+1)}}}}"></span></li> <li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle g'={\sqrt {\frac {5S^{2}}{9(x+1)}}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msup> <mi>g</mi> <mo>′</mo> </msup> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <msqrt> <mfrac> <mrow> <mn>5</mn> <msup> <mi>S</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mrow> <mrow> <mn>9</mn> <mo stretchy="false">(</mo> <mi>x</mi> <mo>+</mo> <mn>1</mn> <mo stretchy="false">)</mo> </mrow> </mfrac> </msqrt> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle g'={\sqrt {\frac {5S^{2}}{9(x+1)}}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/4a258c2f08e70012655b4b9d6389d7107ccae8ae" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -3.338ex; width:16.366ex; height:7.676ex;" alt="{\displaystyle g'={\sqrt {\frac {5S^{2}}{9(x+1)}}}}"></span></li> <li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\textstyle k={\frac {L}{0.185r+0.473g+0.114}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mi>k</mi> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mi>L</mi> <mrow> <mn>0.185</mn> <mi>r</mi> <mo>+</mo> <mn>0.473</mn> <mi>g</mi> <mo>+</mo> <mn>0.114</mn> </mrow> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\textstyle k={\frac {L}{0.185r+0.473g+0.114}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/423382185dc08ca5c48c1233ee36229e08e3e6b6" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.505ex; width:20.469ex; height:3.843ex;" alt="{\textstyle k={\frac {L}{0.185r+0.473g+0.114}}}"></span> – Luma converted to average intensity</li> <li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\textstyle x=\tan ^{2}({2\pi \cdot (T-{\frac {1}{4}})})}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mi>x</mi> <mo>=</mo> <msup> <mi>tan</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> <mo>⁡</mo> <mo stretchy="false">(</mo> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> <mi>π</mi> <mo>⋅</mo> <mo stretchy="false">(</mo> <mi>T</mi> <mo>−</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mn>1</mn> <mn>4</mn> </mfrac> </mrow> <mo stretchy="false">)</mo> </mrow> <mo stretchy="false">)</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\textstyle x=\tan ^{2}({2\pi \cdot (T-{\frac {1}{4}})})}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/8be8888e75aa45348c782468cd8c6ae96c09ff82" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.171ex; width:22.769ex; height:3.509ex;" alt="{\textstyle x=\tan ^{2}({2\pi \cdot (T-{\frac {1}{4}})})}"></span></li></ul> <p>For <span class="texhtml mvar" style="font-style:italic;">T</span> = 0, conversion from TSL to RGB is not unique because the sign of <span class="texhtml mvar" style="font-style:italic;">r'</span> is lost by the forward conversion due to the <span class="texhtml mvar" style="font-style:italic;">g'</span> = 0 special case. Removing the special case produces a system that deviates from the original paper but preserves the sign. </p> <div class="mw-heading mw-heading2"><h2 id="Advantages_of_TSL">Advantages of TSL</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=TSL_color_space&action=edit&section=2" title="Edit section: Advantages of TSL"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The advantages of TSL color space lie within the normalization within the RGB-TSL transform. Utilizing normalized r and g allows for chrominance spaces TSL to be more efficient for skin color segmentation. Additionally with this normalization, the sensitivity of the chrominance distributions to the variability of skin color is significantly reduced, allowing for an easier detection of different skin tones.<sup id="cite_ref-terrillon2_3-0" class="reference"><a href="#cite_note-terrillon2-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Comparison_of_TSL_to_other_color_spaces">Comparison of TSL to other color spaces</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=TSL_color_space&action=edit&section=3" title="Edit section: Comparison of TSL to other color spaces"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Terrillon investigated the efficiency of facial detection for several different color spaces. Testing consisted of using the same algorithm with 10 different color spaces to detect faces in 90 images with 133 faces and 59 subjects - 27 Asian, 31 Caucasian, and 1 African). TSL showed superior performance to the other spaces, with 90.8% correct detection and 84.9% correct rejection. A full comparison can be seen in the table below.<sup id="cite_ref-terrillon2_3-1" class="reference"><a href="#cite_note-terrillon2-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p> <table class="wikitable"> <tbody><tr> <th>Color Space</th> <th># of Elements</th> <th>CD (%)</th> <th>CR (%) </th></tr> <tr> <td>TSL</td> <td>258</td> <td>90.8</td> <td>84.9 </td></tr> <tr> <td><a href="/wiki/Rg_chromaticity" title="Rg chromaticity">r-g</a></td> <td>328</td> <td>74.6</td> <td>80.3 </td></tr> <tr> <td>CIE-xy</td> <td>388</td> <td>56.6</td> <td>83.5 </td></tr> <tr> <td>CIE-DSH</td> <td>318</td> <td>60.9</td> <td>75.0 </td></tr> <tr> <td><a href="/wiki/HSL_and_HSV" title="HSL and HSV">HSV</a></td> <td>408</td> <td>55.7</td> <td>84.7 </td></tr> <tr> <td>YIQ</td> <td>471</td> <td>47.3</td> <td>79.8 </td></tr> <tr> <td>YES</td> <td>494</td> <td>41.6</td> <td>80.3 </td></tr> <tr> <td><a href="/wiki/CIELUV" title="CIELUV">CIELUV</a></td> <td>418</td> <td>24.1</td> <td>79.0 </td></tr> <tr> <td><a href="/wiki/CIELAB" class="mw-redirect" title="CIELAB">CIELAB</a></td> <td>399</td> <td>38.4</td> <td>83.6 </td></tr></tbody></table> <div class="mw-heading mw-heading2"><h2 id="Disadvantages_of_TSL">Disadvantages of TSL</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=TSL_color_space&action=edit&section=4" title="Edit section: Disadvantages of TSL"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>TSL space could be made more efficient and robust. There currently exists no color correction algorithms for different camera systems. Additionally, despite a better accuracy of skin tone detection, detecting dark skin color still proves to be a challenge.<sup id="cite_ref-terrillon1_1-2" class="reference"><a href="#cite_note-terrillon1-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Applications">Applications</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=TSL_color_space&action=edit&section=5" title="Edit section: Applications"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Being a relatively new color space and having very specific uses, TSL hasn’t been widely implemented. Again, it is only very useful in skin detection algorithms. Skin detection itself can be used for a variety of applications – face detection, person tracking (for <a href="/wiki/Surveillance" title="Surveillance">surveillance</a> and <a href="/wiki/Match_Moving" class="mw-redirect" title="Match Moving">cinematographic purposes</a>), and <a href="/wiki/Pornography" title="Pornography">pornography</a> filtering are a few examples. A <a href="/wiki/Self-Organizing_Map" class="mw-redirect" title="Self-Organizing Map">Self-Organizing Map</a> (SOM) was implemented in skin detection using TSL and achieved comparable results to older methods of <a href="/wiki/Histograms" class="mw-redirect" title="Histograms">histograms</a> and Gaussian <a href="/wiki/Mixture_models" class="mw-redirect" title="Mixture models">mixture models</a>.<sup id="cite_ref-brown_4-0" class="reference"><a href="#cite_note-brown-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=TSL_color_space&action=edit&section=6" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/HSL_and_HSV" title="HSL and HSV">HSL and HSV</a></li> <li><a href="/wiki/Face_detection" title="Face detection">Face detection</a></li> <li><a href="/wiki/List_of_color_spaces_and_their_uses" title="List of color spaces and their uses">List of color spaces and their uses</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=TSL_color_space&action=edit&section=7" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-terrillon1-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-terrillon1_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-terrillon1_1-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-terrillon1_1-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFTerrillonAkamatsu1998" class="citation conference cs1">Terrillon, Jean-Christophe; Akamatsu, Shigeru (1998). <i>Automatic Detection of Human Faces in Natural Scene Images by Use of a Skin Color Model and of Invariant Moments</i>. Proc. Of the Third International Conference on Automatic Face and Gesture Recognition. Nara, Japan. pp. 130–135.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=conference&rft.btitle=Automatic+Detection+of+Human+Faces+in+Natural+Scene+Images+by+Use+of+a+Skin+Color+Model+and+of+Invariant+Moments&rft.place=Nara%2C+Japan&rft.pages=130-135&rft.date=1998&rft.aulast=Terrillon&rft.aufirst=Jean-Christophe&rft.au=Akamatsu%2C+Shigeru&rfr_id=info%3Asid%2Fen.wikipedia.org%3ATSL+color+space" class="Z3988"></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFDmitry_Ivanov2023" class="citation web cs1">Dmitry Ivanov (21 June 2023). <a rel="nofollow" class="external text" href="https://github.com/colorjs/color-space/blob/822a488ad752326f85bd5491a853a4a5c32adc59/tsl.js">"Color-space: tsl.js"</a>. <i>GitHub</i>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=GitHub&rft.atitle=Color-space%3A+tsl.js&rft.date=2023-06-21&rft.au=Dmitry+Ivanov&rft_id=https%3A%2F%2Fgithub.com%2Fcolorjs%2Fcolor-space%2Fblob%2F822a488ad752326f85bd5491a853a4a5c32adc59%2Ftsl.js&rfr_id=info%3Asid%2Fen.wikipedia.org%3ATSL+color+space" class="Z3988"></span></span> </li> <li id="cite_note-terrillon2-3"><span class="mw-cite-backlink">^ <a href="#cite_ref-terrillon2_3-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-terrillon2_3-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFTerrillonAkamatsu1999" class="citation book cs1">Terrillon, Jean-Christophe; Akamatsu, Shigeru (1999). "Comparative performance of different skin chrominance models and chrominance spaces for the automatic detection of human faces in color images". <i>Proceedings Fourth IEEE International Conference on Automatic Face and Gesture Recognition (Cat. No. PR00580)</i>. Vol. 99. pp. 54–61. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1109%2FAFGR.2000.840612">10.1109/AFGR.2000.840612</a>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-7695-0580-5" title="Special:BookSources/0-7695-0580-5"><bdi>0-7695-0580-5</bdi></a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:39824480">39824480</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.atitle=Comparative+performance+of+different+skin+chrominance+models+and+chrominance+spaces+for+the+automatic+detection+of+human+faces+in+color+images&rft.btitle=Proceedings+Fourth+IEEE+International+Conference+on+Automatic+Face+and+Gesture+Recognition+%28Cat.+No.+PR00580%29&rft.pages=54-61&rft.date=1999&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A39824480%23id-name%3DS2CID&rft_id=info%3Adoi%2F10.1109%2FAFGR.2000.840612&rft.isbn=0-7695-0580-5&rft.aulast=Terrillon&rft.aufirst=Jean-Christophe&rft.au=Akamatsu%2C+Shigeru&rfr_id=info%3Asid%2Fen.wikipedia.org%3ATSL+color+space" class="Z3988"></span></span> </li> <li id="cite_note-brown-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-brown_4-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFBrownCrawLewthwaite2001" class="citation conference cs1">Brown, D.; Craw, I.; Lewthwaite, J. (2001). <i>A SOM Based Approach to Skin Detection with Application in Real Time Systems</i>. British Machine Vision Conference. Manchester, United Kingdom.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=conference&rft.btitle=A+SOM+Based+Approach+to+Skin+Detection+with+Application+in+Real+Time+Systems&rft.place=Manchester%2C+United+Kingdom&rft.date=2001&rft.aulast=Brown&rft.aufirst=D.&rft.au=Craw%2C+I.&rft.au=Lewthwaite%2C+J.&rfr_id=info%3Asid%2Fen.wikipedia.org%3ATSL+color+space" class="Z3988"></span></span> </li> </ol></div></div> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl 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a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Color_space" title="Template:Color space"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Color_space" title="Template talk:Color space"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Color_space" title="Special:EditPage/Template:Color space"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Color_space" style="font-size:114%;margin:0 4em"><a href="/wiki/Color_space" title="Color space">Color space</a></div></th></tr><tr><td class="navbox-abovebelow" colspan="2"><div> <ul><li><a href="/wiki/List_of_color_spaces_and_their_uses" title="List of color spaces and their uses">List of color spaces</a></li> <li><a href="/wiki/Color_model" title="Color model">Color models</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Color_appearance_model" title="Color appearance model">CAM</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/CIECAM02" title="CIECAM02">CIECAM02</a></li> <li><a href="/wiki/ICAM_(color_appearance_model)" title="ICAM (color appearance model)">iCAM</a></li> <li><a href="/wiki/CAM16" class="mw-redirect" title="CAM16">CAM16</a></li> <li><a href="/w/index.php?title=CIECAM16&action=edit&redlink=1" class="new" title="CIECAM16 (page does not exist)">CIECAM16</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/International_Commission_on_Illumination" title="International Commission on Illumination">CIE</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/CIE_1931_color_space" title="CIE 1931 color space">XYZ (1931)</a></li> <li><a href="/wiki/CIE_1931_color_space#CIE_RGB_color_space" title="CIE 1931 color space">RGB (1931)</a></li> <li><a href="/wiki/CIE_1960_color_space" title="CIE 1960 color space">YUV (1960)</a></li> <li><a href="/wiki/CIE_1964_color_space" title="CIE 1964 color space">UVW (1964)</a></li> <li><a href="/wiki/CIELAB_color_space" title="CIELAB color space">CIELAB (1976)</a></li> <li><a href="/wiki/CIELUV" title="CIELUV">CIELUV (1976)</a></li> <li><a href="/wiki/CIECAM02" title="CIECAM02">CIECAM02</a></li> <li><a href="/w/index.php?title=CIECAM16&action=edit&redlink=1" class="new" title="CIECAM16 (page does not exist)">CIECAM16</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/RGB_color_model" title="RGB color model">RGB</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/RGB_color_spaces" title="RGB color spaces">RGB color spaces</a></li> <li><a href="/wiki/SRGB" title="SRGB">sRGB</a></li> <li><a href="/wiki/Rg_chromaticity" title="Rg chromaticity">rg chromaticity</a></li> <li><a href="/wiki/Adobe_RGB_color_space" title="Adobe RGB color space">Adobe</a></li> <li><a href="/wiki/Wide-gamut_RGB_color_space" title="Wide-gamut RGB color space">Wide-gamut</a></li> <li><a href="/wiki/ProPhoto_RGB_color_space" title="ProPhoto RGB color space">ProPhoto</a></li> <li><a href="/wiki/ScRGB" title="ScRGB">scRGB</a></li> <li><a href="/wiki/DCI-P3" title="DCI-P3">DCI-P3</a></li> <li><a href="/wiki/Rec._601" title="Rec. 601">Rec. 601</a></li> <li><a href="/wiki/NTSC#SMPTE_C" title="NTSC">SMPTE 240M/"C"</a></li> <li><a href="/wiki/Rec._709" title="Rec. 709">Rec. 709</a></li> <li><a href="/wiki/Rec._2020" title="Rec. 2020">Rec. 2020</a></li> <li><a href="/wiki/Rec._2100" title="Rec. 2100">Rec. 2100</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Y%E2%80%B2UV" title="Y′UV">Y′UV</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Y%E2%80%B2UV" title="Y′UV">YUV</a> <ul><li><a href="/wiki/PAL" title="PAL">PAL</a></li></ul></li> <li><a href="/wiki/YDbDr" title="YDbDr">YDbDr</a> <ul><li><a href="/wiki/SECAM" title="SECAM">SECAM</a></li></ul></li> <li><a href="/wiki/YIQ" title="YIQ">YIQ</a> <ul><li><a href="/wiki/NTSC" title="NTSC">NTSC</a></li></ul></li> <li><a href="/wiki/YCbCr" title="YCbCr">YCbCr</a> <ul><li><a href="/wiki/Rec._601" title="Rec. 601">Rec. 601</a></li> <li><a href="/wiki/Rec._709" title="Rec. 709">Rec. 709</a></li> <li><a href="/wiki/Rec._2020" title="Rec. 2020">Rec. 2020</a></li> <li><a href="/wiki/Rec._2100" title="Rec. 2100">Rec. 2100</a></li></ul></li> <li><a href="/wiki/ICtCp" title="ICtCp">ICtCp</a> <ul><li><a href="/wiki/Rec._2100" title="Rec. 2100">Rec. 2100</a></li></ul></li> <li><a href="/wiki/YPbPr" title="YPbPr">YPbPr</a> <ul><li><a href="/wiki/Multiplexed_Analogue_Components" title="Multiplexed Analogue Components">MAC</a></li></ul></li> <li><a href="/wiki/XvYCC" title="XvYCC">xvYCC</a></li> <li><a href="/wiki/YCoCg" title="YCoCg">YCoCg</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/CcMmYK_color_model" title="CcMmYK color model">CcMmYK</a></li> <li><a href="/wiki/CMYK_color_model" title="CMYK color model">CMYK</a></li> <li><a href="/wiki/ColorADD" title="ColorADD">ColorADD</a></li> <li><a href="/wiki/Coloroid" title="Coloroid">Coloroid</a></li> <li><a href="/wiki/LMS_color_space" title="LMS color space">LMS</a></li> <li><a href="/wiki/Hexachrome" title="Hexachrome">Hexachrome</a></li> <li><a href="/wiki/HSL_and_HSV" title="HSL and HSV">HSL, HSV</a></li> <li><a href="/wiki/HCL_color_space" title="HCL color space">HCL</a></li> <li><a href="/wiki/Impossible_color" title="Impossible color">Imaginary color</a></li> <li><a href="/wiki/Oklab_color_space" title="Oklab color space">Oklab</a></li> <li><a href="/wiki/OSA-UCS" title="OSA-UCS">OSA-UCS</a></li> <li><a href="/wiki/Practical_Color_Coordinate_System" title="Practical Color Coordinate System">PCCS</a></li> <li><a href="/wiki/RG_color_models" title="RG color models">RG</a></li> <li><a href="/wiki/RYB_color_model" title="RYB color model">RYB</a></li> <li><a href="/wiki/HWB_color_model" title="HWB color model">HWB</a></li> <li><a href="/wiki/YJK" title="YJK">YJK</a></li> <li><a class="mw-selflink selflink">TSL</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Color systems<br />and standards</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Academy_Color_Encoding_System" title="Academy Color Encoding System">ACES</a></li> <li><a href="/wiki/News_Media_Alliance" title="News Media Alliance">ANPA</a></li> <li><a href="/wiki/Colour_Index_International" title="Colour Index International">Colour Index International</a> <ul><li><a href="/wiki/List_of_dyes" title="List of dyes">CI list of dyes</a></li></ul></li> <li><a href="/wiki/DIC_Corporation" title="DIC Corporation">DIC</a></li> <li><a href="/wiki/Federal_Standard_595" title="Federal Standard 595">Federal Standard 595</a></li> <li><a href="/wiki/HKS_(colour_system)" title="HKS (colour system)">HKS</a></li> <li><a href="/wiki/ICC_profile" title="ICC profile">ICC profile</a></li> <li><a href="/wiki/ISCC%E2%80%93NBS_system" title="ISCC–NBS system">ISCC–NBS</a></li> <li><a href="/wiki/Munsell_color_system" title="Munsell color system">Munsell</a></li> <li><a href="/wiki/Natural_Color_System" title="Natural Color System">NCS</a></li> <li><a href="/wiki/Ostwald_color_system" title="Ostwald color system">Ostwald</a></li> <li><a href="/wiki/Pantone" title="Pantone">Pantone</a></li> <li><a href="/wiki/RAL_colour_standard" title="RAL colour standard">RAL</a> <ul><li><a href="/wiki/List_of_RAL_colors" class="mw-redirect" title="List of RAL colors">list</a></li></ul></li> <li><a href="/w/index.php?title=JIS_Z8102&action=edit&redlink=1" class="new" title="JIS Z8102 (page does not exist)">JIS Z8102</a><span class="noprint" style="font-size:85%; font-style: normal;"> [<a href="https://ja.wikipedia.org/wiki/JIS%E6%85%A3%E7%94%A8%E8%89%B2%E5%90%8D" class="extiw" title="ja:JIS慣用色名">ja</a>]</span></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div>For the vision capacities of organisms or machines, see <span class="noviewer" typeof="mw:File"><span title="Template"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/83/Symbol_template_class_pink.svg/16px-Symbol_template_class_pink.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/83/Symbol_template_class_pink.svg/23px-Symbol_template_class_pink.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/83/Symbol_template_class_pink.svg/31px-Symbol_template_class_pink.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <a 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