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authorRichard Hughes <richard@hughsie.com>2013-08-29 08:23:17 +0100
committerRichard Hughes <richard@hughsie.com>2013-10-30 10:35:12 +0000
commit7efe9fe132dac72adf06c5a36112b8028d0499b4 (patch)
tree7ba4dc46221a7d5f19b8d3c6a6365676e66d9e45
parent4254d064b787a816bf5e1710293ff147bc17c205 (diff)
downloadcolord-7efe9fe132dac72adf06c5a36112b8028d0499b4.tar.gz
Fix the AdobeRGB and WideGamutRGB gamma values
According to http://www.adobe.com/digitalimag/pdfs/AdobeRGB1998.pdf they are *not* 2.2, but '2 + 51/256' which isn't quite 2.2. This is also the value used by ArgyllCMS, many thanks to Elle Stone for the hint.
-rw-r--r--data/profiles/AdobeRGB1998.xml.in3
-rw-r--r--data/profiles/WideGamutRGB.xml.in3
2 files changed, 4 insertions, 2 deletions
diff --git a/data/profiles/AdobeRGB1998.xml.in b/data/profiles/AdobeRGB1998.xml.in
index b85602c..e140fa9 100644
--- a/data/profiles/AdobeRGB1998.xml.in
+++ b/data/profiles/AdobeRGB1998.xml.in
@@ -16,7 +16,8 @@
<license>CC0</license>
<data_source>standard</data_source>
<standard_space>adobe-rgb</standard_space>
- <gamma>2.2</gamma>
+ <!-- according to http://www.adobe.com/digitalimag/pdfs/AdobeRGB1998.pdf -->
+ <gamma>2.19921875</gamma>
<whitepoint>D65</whitepoint>
<primaries>
<red>
diff --git a/data/profiles/WideGamutRGB.xml.in b/data/profiles/WideGamutRGB.xml.in
index 40214db..86b64c6 100644
--- a/data/profiles/WideGamutRGB.xml.in
+++ b/data/profiles/WideGamutRGB.xml.in
@@ -15,7 +15,8 @@
<license>CC0</license>
<data_source>standard</data_source>
<standard_space>wide-gamut-rgb</standard_space>
- <gamma>2.2</gamma>
+ <!-- according to http://www.adobe.com/digitalimag/pdfs/AdobeRGB1998.pdf -->
+ <gamma>2.19921875</gamma>
<whitepoint>D50</whitepoint>
<primaries>
<red>