[MEncoder-users] (automatic) white balance (eq2)

[Grozdan]

On Sun, Jun 27, 2010 at 9:46 PM, Al Bogner
<mencoder at ml093.pinguin.uni.cc> wrote:
> Am Sun, 27 Jun 2010 17:21:40 +0200
> schrieb Grozdan <neutrino8 at gmail.com>:
>
> Hi Grozdan,
>
>> Also, seems your mplayer man page is a bit outdated. Here's
>> mine on it
>
> I quoted a web-verison, because mine is in German.
>
>> > Sorry, I have no idea, how to _calculate_ values for the white
>> > balance.
>>
>> By playing around/experimenting? I'm not very versed with this filter
>> myself, so I won't be of much help.
>
> You have been a lot help with other things and I want to thank you for
> this!
>
> Maybe there is someone, who has experience with white balance.
>
> There is a thread, where I gave a hint myself with eq2 earlier
> http://www.mailinglistarchive.com/html/mencoder-users@mplayerhq.hu/2010-02/msg00024.html
>
> _________________
> It seems to me that it does what I want: I first had to take a screen
> shot of my video, then with gimp I computed the necessary RGB
> correction; finally I applied it with values
>
> -vf eq2=1:1:0:1:1.7:1.3:1:1
>
> and the result is quite close to what I wanted.
>
> At least, even if it is not perfect, it is more than acceptable and no
> longer so unbearably bluish like before.

There you go :)

You found a way and it doesn't seem too hard either. And thanks for
reporting it so others who search the list for such things, can find
it and help themselves :)

> _________________
>
>
> Maybe I have to ask in a gimp group.
>
> Al
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