54 votes
Accepted

ffmpeg Color Correction: Gamma, Brightness and Saturation

These settings helped me to lighten up a dark video using the filter eq, with some added saturation. Syntax: filtername=option1=value1:option2=value2:option3=value3... These can be in any order. ...
P A N's user avatar
  • 1,783
19 votes

ffmpeg Color Correction: Gamma, Brightness and Saturation

Gamma correction is likely to be a better choice than brightness, to stretch the histogram to the right rather than push it over: # tinker with numbers ffplay -vf eq=gamma=1.5:saturation=1.3 original....
Gringo Suave's user avatar
14 votes

ffmpeg Color Correction: Gamma, Brightness and Saturation

I'd also try curves: ffmpeg -i input.vid -vf "curves=all='0/0 0.5/1 1/1'" -codec:a copy -codec:v libx264 -y output.vid The 0.5/1 maps mid-range brightness (0.5) to full bright (1)
hrunk's user avatar
  • 241
9 votes
Accepted

Leaving white balance for post-processing. Is it a bad idea?

Don't do white balance in post, you will regret it. The problem is that the footage your camera records is compressed. That means the sensor information is not stored in RAW, but encoded using lossy ...
MoritzLost's user avatar
  • 5,412
9 votes
Accepted

What is the ffmpeg filter equivalent of "Automatic levels" for colors?

Here's the details on what the presets do: [PRESET_COLOR_NEGATIVE] = { "0/1 0.129/1 0.466/0.498 0.725/0 1/0", "0/1 0.109/1 0.301/0.498 0.517/0 1/0", "0/1 0.098/1 0.235/0.498 0.423/0 1/0", ...
Gyan's user avatar
  • 33.2k
6 votes
Accepted

How to combine ffmpeg vf commands for resizing and color correction?

Filter complex isn't needed. When a series of filters are to be applied to a single input in sequence, they are to be separated with a comma and passed along as a single filterchain (-vf, -af). You ...
Gyan's user avatar
  • 33.2k
5 votes

What are Grey Balls used for?

Yes, they are used for adding visual effects in post. The mirrored ball is for creating an environment map or reflection map. These maps provide the same lighting from the real scene to the virtual ...
user1118321's user avatar
  • 2,156
5 votes
Accepted

ffmpeg vf scale shifts colors to washed out

The video's color transfer characteristics (trc) and color primaries flags are not being set on the output video, which is causing the video player to use incorrect values for playback, resulting in ...
Zach F.'s user avatar
  • 341
3 votes
Accepted

Color correct to compensate for low blue

I am not very certain that I understand your question, but if you want to shift the color-grade of your image away from the orange, you can use the temperature to shift it towards blue, effectively ...
Florian Claaßen's user avatar
3 votes
Accepted

Correct gamma for SMPTE ST-2084 EOTF

The short answer is: You don't pick a color space for your RAW material based on what kind of monitor you're using. A color pipeline is a very complicated series of mathematical conversions, which is ...
Jason Conrad's user avatar
  • 4,504
3 votes

Color grading basics

I would look at some of the tutorials on YouTube. There are plenty of them. If you want to get into grading; you can jump right in as long as you are shooting RAW; or at the very least; 4:2:2. If ...
McFlySoHigh's user avatar
  • 2,487
3 votes
Accepted

What are Grey Balls used for?

The grey balls are actually used like the grey cards but with added lighting data cause they are spherical and refer to the surrounding light sources better, they usually reflect 18% of the light and ...
Reuben Tilahun's user avatar
3 votes
Accepted

Change color to look as how a color blind person sees

With these values, I get the results shown below. Note that your color management settings in Resolve will affect your result, and so will the input color space of your source. To avoid ...
Jason Conrad's user avatar
  • 4,504
2 votes

How to colorise black and white movies?

Convert movie to pictures (1 second = 24 pictures ; so 1 hour = 86,400 pictures ; average 90 min. movie = 129,600 pictures). Colorize every individual picture using the DeepLearning API which gives ...
user32838's user avatar
2 votes

White balance auto-adjusted half way through recording

A1: Links like these mention that ProRes 'bakes in' the white balance (as opposed to storing it as separate metadata): blackmagicdesign.com forum ; reduser.net forum ; reduser.net forum ; ...
benxyzzy's user avatar
  • 141
2 votes
Accepted

Why use Lumetri scopes?

The scopes are objective and absolute measures of the levels in your image. They aren't susceptible to the vagaries of human perception—colours and levels looking different depending on context—and ...
stib's user avatar
  • 13.7k
2 votes
Accepted

Why a color grading suite needs high CRI lamps?

The truth is that you do not need them... unless you do of course. You only need good CRI for the ambient lamps if you need to compare colors with real-life things, probably the skin tone of someone, ...
Rafael's user avatar
  • 1,182
2 votes
Accepted

Davinci Resolve 15 - color correction of whole tracks

A couple of ways you can do this. My faforite is groups. In the color page, do this: Shift click all of the clips you want to color correct at the same time. You can limit the clips shown on the ...
Jason Conrad's user avatar
  • 4,504
2 votes

Source ProRes 422 Proxy / Edit / Export to ProRes 422 proxy?

Definitely proRes 422HQ. While you won't gain anything by encoding in a higher quality codec, what you will do is avoid losing more. Proxy codecs are just that: stand-ins for the real content, ...
stib's user avatar
  • 13.7k
2 votes
Accepted

White balance vs color correction

Regarding the standard procedure, the short version is: get the colour looking correct but neutral, which is when you do corrections for white balance and exposure problems. The footage will look &...
stib's user avatar
  • 13.7k
2 votes

Manual white-balance for non-neutral lighting

You're doing it wrong. For one, the 18% grey card is for exposure, use a white card for white balance. For two, the whole point of the white / grey card is that you expose it under the lighting ...
stib's user avatar
  • 13.7k
2 votes

Recovering from an Automatic White Balanced mishap

DaVinci Resolve is industry standard for colour grading. However if you don’t need very special and specific functions in DaVinci Resolve, you can do the grading in FCP as well. In your situation I ...
German Dude's user avatar
1 vote

Even out fluctuating exposure on old video

You could try GBDeflicker to see if it improves the footage. They have a free demo. It is designed for smoothing out time-lapses (and is good at this), but it might work on archive video?
tomh's user avatar
  • 7,782
1 vote

How can I create a LUT on Linux with free and open source software?

I was looking for that kind of software as well. Then I found the .cube specification. I thought to myself ... an average programmer should be able to do it in a couple of days ... and then I did the ...
ChristophK's user avatar
1 vote
Accepted

Apply the parameters of automatic color balance to another clip

Unfortunately the settings are not visible when you use automatic colour grading. AFAIK what the algorithm does can’t be replicated on another clip. To be honest I would not use automatic for what I ...
German Dude's user avatar
1 vote
Accepted

Reapply video color autocorrection

If you want the “best possible results” I would recommend the following workflow, or similar variation thereof: Export your captured video source to a JPG Image Sequence. This will create a JPG for ...
McFlySoHigh's user avatar
  • 2,487
1 vote

Davinci Resolve 15 - color correction of whole tracks

Just color correct one clip according to your specifications and then select that clip first and then all other which you want to have the same color correction. To select the other clips you can do ...
Gurjyot Singh's user avatar
1 vote

Color-correcting super 8 video from 1975

Play with color corrector controls. Use "High" control to adjust snow to the tint you prefer, use "Mid" and "Low" to adjust face and hat. As you see, I moved "High" and "Mid" to the green/blue zone to ...
Rusty Core's user avatar
1 vote

Color Correction filter to dull/desaturate Video

If you do a primary color correction on your video to get it normalized (this is assuming your footage looks correct in terms of exposure, white balance, etc); I'd add the following filters to achieve ...
McFlySoHigh's user avatar
  • 2,487
1 vote

Unhappy with wedding videography production - want expert opinions to provide an independant view

This is going to be a hard one. I am a wedding videographer myself and there isn't really a guild or similar (well there is kind of but there are no requirement to be joined to one in the UK). Now ...
Adam Mann Pro's user avatar

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