#9673: ffmpeg not reading color information from JPEG ICC profile
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Reporter: Cosmin | Owner: haasn
Stejerean |
Type: defect | Status: closed
Priority: normal | Component:
| undetermined
Version: unspecified | Resolution: fixed
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by Balling):
DCI-P3-D65 from https://www.color.org/chardata/rgb/DCIP3.xalter is 2.6
gamma. Did you even look into rTRC of it? It is not really relevant, is
it... Its Red Z is -0.00081, so negative, so noncompliant. **Why would you
think ICC pages will have no bugs? LOL.
**
>Except that the media white point in the ICC profile is correct (D50),
whereas the one in the Apple profile is incorrect (D65).
So? I told you that. Who cares. It is not used for color managment. ICCV4
is always USING D50.
>instead of the (correct) "Inverse(chromaticAdaptationTag) *
mediaWhitePointTag
No. ICCV4 is always USING D50. WHAT?? You do not need this and even chad
is not used really, except to make negative Z of R positive.
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Ticket URL: <https://trac.ffmpeg.org/ticket/9673#comment:21>
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