Am 27.04.2022 um 21:52 schrieb Roger:
Chapter 2.28 uses filter_complex without white spaces or colons?
$ ffmpeg -i 20220421_163910-meet.mp4 -i image_with_clut-meet-edited-clut.png
-filter_complex [0]eq=brightness=0.06[a];[a][1]haldclut -y
20220421_163910-meet-edited.mp4
Input #0,
Am 27.04.2022 um 20:46 schrieb Roger:
On Wed, Apr 20, 2022 at 07:35:22AM +0200, Michael Koch wrote:
You can make your own LUT, as described in chapter 2.28 in my book.
-- Extract one frame from your video.
-- Insert a haldclut in a corner of the image, or use xstack to attach it to
the side.
--
Chapter 2.28 uses filter_complex without white spaces or colons?
$ ffmpeg -i 20220421_163910-meet.mp4 -i image_with_clut-meet-edited-clut.png
-filter_complex [0]eq=brightness=0.06[a];[a][1]haldclut -y
20220421_163910-meet-edited.mp4
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
On Tue, Apr 19, 2022 at 8:41 PM Carl Zwanzig wrote:
> On 4/19/2022 11:37 AM, Paul B Mahol wrote:
> > colorcorrect filter operates in YUV colorspace and not RGB colorspace
> > So green tint can be adjusted with it.
>
> How would you do that when there are only parameters for R and B?
>
>
You seem
> On Wed, Apr 20, 2022 at 07:35:22AM +0200, Michael Koch wrote:
>
>You can make your own LUT, as described in chapter 2.28 in my book.
>-- Extract one frame from your video.
>-- Insert a haldclut in a corner of the image, or use xstack to attach it to
>the side.
>-- Use the program of your choice
Am 21.04.2022 um 04:25 schrieb Roger:
...
You can make your own LUT, as described in chapter 2.28 in my book.
-- Extract one frame from your video.
-- Insert a haldclut in a corner of the image, or use xstack to attach it to
the side.
-- Use the program of your choice to correct the colors in
>> Found through Google,
>> https://lutify.me/free-white-balance-correction-luts-for-everyone/
>> Download: Free White Balance Correction LUTs
>> Lutify-me-Free-White-Balance-Correction-3D-LUTs.zip
>>
>> 2800 Kelvin - 3200 Kelvin - 0.34 CTO.cube
>> 2800 Kelvin - 4300 Kelvin - 0.95 CTO.cube
>>
Am 19.04.2022 um 23:06 schrieb Roger:
On Tue, Apr 19, 2022 at 08:25:17PM +0200, Michael Koch wrote:
Am 19.04.2022 um 03:34 schrieb Roger:
I'm not finding much about fixing video having incorrect white space, more
specifically video with incorrect or forgotten fluorescent white balance
setting
On 4/19/2022 2:06 PM, Roger wrote:
5500 Kelvin - 6500 Kelvin - 0.21 CTO.cube
6500 Kelvin - 2800 Kelvin - 1.56 CTB.cube
6500 Kelvin - 5500 Kelvin - 0.21 CTB.cube
Yea, horrendously named file names!
Not bad, actually :)
Harkens back to photography and motion pictures-
Color Temperature Blue
> On Tue, Apr 19, 2022 at 06:32:39PM +, Carl Zwanzig wrote:
>On 4/19/2022 11:07 AM, Roger wrote:
>> I noticed the colorcorrect filter, for use with augmenting the Red and Blue
>> channels.
>
>Touching on that- in most video systems green is the fixed* level and R/B are
>adjusted to that. Makes
> On Tue, Apr 19, 2022 at 08:25:17PM +0200, Michael Koch wrote:
>Am 19.04.2022 um 03:34 schrieb Roger:
>> I'm not finding much about fixing video having incorrect white space, more
>> specifically video with incorrect or forgotten fluorescent white balance
>> setting during recording.
...
>>
>>
On 4/19/2022 12:08 PM, Bouke / edit 'B wrote:
Could be I’m missing the point, but cutting / extending two legs of a
three legged chair will close to NEVER make the desired height.Agreed, but...
But yes, it will level it if needed, to stick to the reference.
And that's the point of
On 19 Apr 2022, at 20:44, Jim DeLaHunt wrote:
>
> Not that the FFmpeg tool is stupid overall — it is quite capable and useful
> in many ways. But there are aspects of the tool, and its documentation, and
> its contributors' behaviour, and the project culture, which are indeed quite
> stupid.
> On 19 Apr 2022, at 21:00, Carl Zwanzig wrote:
>
> On 4/19/2022 11:52 AM, Bouke / edit 'B wrote:
>>> How would you do that when there are only parameters for R and B?
>
>> AFAIK, YUV = R-Y B-Y, so it’s just math.
>> Doing corrections in RGB is simpler for a mortal,
>
> and in analog :)
>
>
On 4/19/2022 11:52 AM, Bouke / edit 'B wrote:
How would you do that when there are only parameters for R and B?
AFAIK, YUV = R-Y B-Y, so it’s just math.
Doing corrections in RGB is simpler for a mortal,
and in analog :)
What I'm getting at is there are no green terms on that filter's
> On 19 Apr 2022, at 20:41, Carl Zwanzig wrote:
>
> On 4/19/2022 11:37 AM, Paul B Mahol wrote:
>> colorcorrect filter operates in YUV colorspace and not RGB colorspace
>> So green tint can be adjusted with it.
>
> How would you do that when there are only parameters for R and B?
>
> z!
Am 19.04.2022 um 20:44 schrieb Jim DeLaHunt:
On 2022-04-19 11:38, Paul B Mahol wrote:
On Tue, Apr 19, 2022 at 8:25 PM Michael
Koch
wrote:
I would do that with a color-look-up-table. The procedure is described
step-by-step in chapter 2.27 and an easier simplified version is
described in
On 2022-04-19 11:38, Paul B Mahol wrote:
On Tue, Apr 19, 2022 at 8:25 PM Michael Koch
wrote:
I would do that with a color-look-up-table. The procedure is described
step-by-step in chapter 2.27 and an easier simplified version is
described in chapter 2.28 in my book:
Am 19.04.2022 um 20:38 schrieb Paul B Mahol:
On Tue, Apr 19, 2022 at 8:25 PM Michael Koch
wrote:
Am 19.04.2022 um 03:34 schrieb Roger:
I'm not finding much about fixing video having incorrect white space,
more
specifically video with incorrect or forgotten fluorescent white balance
setting
On 4/19/2022 11:37 AM, Paul B Mahol wrote:
colorcorrect filter operates in YUV colorspace and not RGB colorspace
So green tint can be adjusted with it.
How would you do that when there are only parameters for R and B?
z!
___
ffmpeg-user mailing list
On Tue, Apr 19, 2022 at 8:25 PM Michael Koch
wrote:
> Am 19.04.2022 um 03:34 schrieb Roger:
> > I'm not finding much about fixing video having incorrect white space,
> more
> > specifically video with incorrect or forgotten fluorescent white balance
> > setting during recording.
> >
> > I have a
On Tue, Apr 19, 2022 at 8:32 PM Carl Zwanzig wrote:
> On 4/19/2022 11:07 AM, Roger wrote:
> > I noticed the colorcorrect filter, for use with augmenting the Red and
> Blue
> > channels.
>
> Touching on that- in most video systems green is the fixed* level and R/B
> are adjusted to that. Makes
On 4/19/2022 11:07 AM, Roger wrote:
I noticed the colorcorrect filter, for use with augmenting the Red and Blue
channels.
Touching on that- in most video systems green is the fixed* level and R/B
are adjusted to that. Makes sense that ffmpeg does the same.
*not separately adjustable
z!
Am 19.04.2022 um 03:34 schrieb Roger:
I'm not finding much about fixing video having incorrect white space, more
specifically video with incorrect or forgotten fluorescent white balance
setting during recording.
I have a very old VHS recorded tape without a fluorescent white balance
applied,
For those wondering about the fluorescent color settings, for filtering
different standard fluorescent lighting scenarios within photography or videos:
Color temperature white points Wikipedia
https://en.wikipedia.org/wiki/Template:Color_temperature_white_points
This includes my video
On Tue, Apr 19, 2022 at 3:34 AM Roger wrote:
> I'm not finding much about fixing video having incorrect white space, more
> specifically video with incorrect or forgotten fluorescent white balance
> setting during recording.
>
> I have a very old VHS recorded tape without a fluorescent white
I'm not finding much about fixing video having incorrect white space, more
specifically video with incorrect or forgotten fluorescent white balance
setting during recording.
I have a very old VHS recorded tape without a fluorescent white balance
applied, and as such a green mask throughout the
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