#9167: Color changed when an image converting to video
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Reporter: kvsico | Owner:
Type: defect | Status: closed
Priority: normal | Component:
| undetermined
Version: unspecified | Resolution: invalid
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by Balling):
Replying to [comment:14 pdr0]:
>I believe you, but not perfect as in off by -1 in B.
Oh, wow, I did not see that ;( I looked into topic starter hex values
#ee4d2c which he gave wrong. Wow, sorry. Maybe it RGB'''A''' issue? Will
have to check.
>your version of mpv is setup
I use --no-config :)
>How are you defining "superblack" ? <0 RGB in any channel ?
No, standard definition: 16, 128, 128 in limited range YCbCr is black. If
Y is less than 16 than it is superblack. 0 is reserved though, in HDMI
interface. Not in files AFAIK. So it is 15, 128, 128; 14, 128, 128; ... 1,
128, 128. If Cb or Cr are not 128, it is xvYCC already :)
Again, that is the point: RGB to YCbCr should not introduce superblack,
IMHO. But that is just my opinion. D:) Sorry again about that Blue
channel.
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Ticket URL: <https://trac.ffmpeg.org/ticket/9167#comment:15>
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