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[css-color-hdr][editorial] linkfixes, prepare for fpwd
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svgeesus committed Dec 11, 2024
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41 changes: 30 additions & 11 deletions css-color-hdr-1/Overview.bs
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Expand Up @@ -3,7 +3,9 @@
Title: CSS Color HDR Module Level 1
Shortname: css-color-hdr
Level: 1
Status: ED
Status: FPWD
Date: 2024-12-17
Prepare for TR: yes
Group: csswg
TR: https://www.w3.org/TR/css-color-hdr-1/
ED: https://drafts.csswg.org/css-color-hdr-1/
Expand All @@ -14,6 +16,23 @@ WPT Path Prefix: css/css-color-hdr/
WPT Display: open
</pre>

<pre class="link-defaults">
spec:css-cascade-5; type:dfn; text:computed value
spec:css-color-4; type:dfn; text:color space
spec:css-color-4; type:dfn; text:gamut
spec:css-color-4; type:dfn; text:rectangular orthogonal color
spec:css-color-4; type:dfn; text:cylindrical polar color
spec:css-color-4; type:value; text:none
spec:css-color-4; type:value; text:srgb
spec:css-color-4; type:dfn; text:modern color syntax
spec:css-color-4; type:value; text:alpha-value
spec:css-color-5; type:type; text:<color>
spec:css-color-adjust-1; type:value; text:light
spec:css-color-adjust-1; type:value; text:dark
spec:css-color-4; type:value; text:rec2020
spec:css-color-4; type:dfn; text:D65
</pre>

<pre class=biblio>
{
"ARIB_STD-B67": {
Expand Down Expand Up @@ -264,7 +283,7 @@ The 'dynamic-range-limit' property {#the-dynamic-range-limit-property}
Applies to: all elements
Inherited: yes
Percentages: n/a
Computed value: see <a href="#computing-dynamic-range-limit">Computed Value for 'dynamic-range-limit'</a>
Computed value: see <a href="#computing-dynamic-range-limit">Computed Value for dynamic-range-limit</a>
Animation type: by ''dynamic-range-limit-mix()''
Canonical order: per grammar
</pre>
Expand Down Expand Up @@ -310,7 +329,7 @@ The 'dynamic-range-limit' property {#the-dynamic-range-limit-property}
Mixing Dynamic Range Limits: the ''dynamic-range-limit-mix()'' function {#dynamic-range-limit-mix}
--------------------------------------------------------

This function takes two dynamic-range-limit values,
This function takes two 'dynamic-range-limit' values,
converts them internally to a value in stops above media white,
and alters the display to the result of mixing them
by the specified amount.
Expand Down Expand Up @@ -437,7 +456,7 @@ Predefined color spaces for HDR: {#predefined-HDR}
<tr><th>Red chromaticity</th><td>0.708</td><td>0.292</td></tr>
<tr><th>Green chromaticity</th><td>0.170</td><td>0.797</td></tr>
<tr><th>Blue chromaticity</th><td>0.131</td><td>0.046</td></tr>
<tr><th>White chromaticity</th><td colspan="2">[=D65 whitepoint|D65=]</td></tr>
<tr><th>White chromaticity</th><td colspan="2">[=D65=]</td></tr>
<tr><th>Transfer function</th><td colspan="2">Perceptual Quantizer</td></tr>
<tr><th>White luminance</th><td colspan="2">203 cd/m²</td></tr>
<tr><th>Peak white luminance</th><td colspan="2">10,000 cd/m²</td></tr>
Expand Down Expand Up @@ -557,7 +576,7 @@ Predefined color spaces for HDR: {#predefined-HDR}
<tr><th>Red chromaticity</th><td>0.708</td><td>0.292</td></tr>
<tr><th>Green chromaticity</th><td>0.170</td><td>0.797</td></tr>
<tr><th>Blue chromaticity</th><td>0.131</td><td>0.046</td></tr>
<tr><th>White chromaticity</th><td colspan="2">[=D65 whitepoint|D65=]</td></tr>
<tr><th>White chromaticity</th><td colspan="2">[=D65=]</td></tr>
<tr><th>Transfer function</th><td colspan="2">Hybrid log Gamma</td></tr>
<tr><th>White luminance</th></tr><td colspan="2">depends on viewing conditions</td></tr>
<tr><th>Peak white luminance</th><td colspan="2">12 times reference white</td></tr>
Expand Down Expand Up @@ -690,7 +709,7 @@ Predefined color spaces for HDR: {#predefined-HDR}
<tr><th>Red chromaticity</th><td>0.708</td><td>0.292</td></tr>
<tr><th>Green chromaticity</th><td>0.170</td><td>0.797</td></tr>
<tr><th>Blue chromaticity</th><td>0.131</td><td>0.046</td></tr>
<tr><th>White chromaticity</th><td colspan="2">[=D65 whitepoint|D65=]</td></tr>
<tr><th>White chromaticity</th><td colspan="2">[=D65=]</td></tr>
<tr><th>Transfer function</th><td colspan="2">Linear</td></tr>
<tr><th>White luminance</th><td colspan="2">203 cd/m²</td></tr>
<tr><th>Peak white luminance</th><td colspan="2">10,000 cd/m²</td></tr>
Expand Down Expand Up @@ -727,7 +746,7 @@ Predefined color spaces for HDR: {#predefined-HDR}

<table>
<thead><td></td><td>x</td><td>y</td></thead>
<tr><th>White chromaticity</th><td colspan="2">[=D65 whitepoint|D65=]</td></tr>
<tr><th>White chromaticity</th><td colspan="2">[=D65=]</td></tr>
<tr><th>Transfer function</th><td colspan="2">Perceptual Quantizer</td></tr>
<tr><th>Peak white luminance</th><td colspan="2">10,000 cd/m²</td></tr>
<tr><th>Black luminance</th><td colspan="2">0.001 cd/m²</td></tr>
Expand All @@ -743,7 +762,7 @@ Predefined color spaces for HDR: {#predefined-HDR}
</tr>
</table>

Note that unlike Lab, a [=D65 whitepoint=] is used.
Note that unlike Lab, a [=D65=] whitepoint is used.
Thus, for most RGB spaces
(which also use a D65 whitepoint)
no chromatic adaptation step need be performed.
Expand Down Expand Up @@ -822,7 +841,7 @@ Converting JzCzHz colors to Jzazbz colors</h4>
It is based on human visual system LMS cone primaries;
the Hunt-Pointer-Estevez (HPE) XYZ to LMS transform
is used,
normalized to a [=D65 whitepoint=].
normalized to a [=D65=] whitepoint.
A crosstalk matrix is then applied,
to reduce the gamut hull concavities of BT.2020 RGB,
thus reducing interpolation errors.
Expand All @@ -833,7 +852,7 @@ Converting JzCzHz colors to Jzazbz colors</h4>

<table>
<thead><td></td><td>x</td><td>y</td></thead>
<tr><th>White chromaticity</th><td colspan="2">[=D65 whitepoint|D65=]</td></tr>
<tr><th>White chromaticity</th><td colspan="2">[=D65=]</td></tr>
<tr><th>Transfer function</th><td colspan="2">Perceptual Quantizer</td></tr>
<tr><th>White luminance</th><td colspan="2">203 cd/m²</td></tr>
<tr><th>Peak white luminance</th><td colspan="2">10,000 cd/m²</td></tr>
Expand All @@ -856,7 +875,7 @@ Converting JzCzHz colors to Jzazbz colors</h4>
and thus, any other color space can also be represented
by applying an XYZ to LMS transform.

Note that unlike Lab, a [=D65 whitepoint=] is used.
Note that unlike Lab, a [=D65=] whitepoint is used.

Also unlike Lab, which has primarily been tested with
lower-intensity reflective colors,
Expand Down

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