diff options
| author | Pekka Paalanen <pekka.paalanen@collabora.com> | 2024-11-20 15:54:44 +0200 |
|---|---|---|
| committer | Pekka Paalanen <pekka.paalanen@collabora.com> | 2024-11-27 16:37:46 +0200 |
| commit | 8ac0dc6108b826614b20d5a037175cba0d3006cc (patch) | |
| tree | 80b4e4bdcf824529dee0eb305a73b67bbda66128 | |
| parent | e14bb785c0310911929d04df4e072e10d1f8ead3 (diff) | |
color: restore ext_linear min_lum
This changes the ext_linear default primary color volume minimum back to
0.2 cd/m². This is consistent with the sRGB reference display
characteristics, like with all other transfer functions except st2084_pq
and hlg.
The purpose is that whether content uses srgb, gamma22 or ext_linear
transfer function, it occupies the same (sRGB SDR) dynamic range by
default.
For rendering intents that employ black-point compensation, including
the perceptual rendering intent, this changes nothing.
The set_luminances request can be used to set more appropriate values as
necessary.
Suggested-by: @swick
Removed the wording about implied luminances, because it applies to
almost all TFs, not just this one.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
| -rw-r--r-- | staging/color-management/color-management-v1.xml | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/staging/color-management/color-management-v1.xml b/staging/color-management/color-management-v1.xml index 5f1d6aa..da0aa1e 100644 --- a/staging/color-management/color-management-v1.xml +++ b/staging/color-management/color-management-v1.xml @@ -301,13 +301,8 @@ Linear transfer function defined over all real numbers. Normalised electrical values are equal the normalised optical values. - This TF implies these default luminances - - primary color volume minimum: 0 cd/m² - - primary color volume maximum: 80 cd/m² - - reference white: 80 cd/m² - The differences to H.273 TransferCharacteristics code point 8 are - the definition over all real numbers and the implied luminances. + the definition over all real numbers. </description> </entry> <entry name="log_100" value="6"> |