| Colour Space |
RGB
Y’CbCr |
Most video is natively in the Y’CbCr space (commonly and incorrectly known as “YUV”). By allowing the selection of Y’CbCr or RGB, you can create a different visual effect. When working in Y’CbCr, only Y’ level is affected, preserving colour saturation. In RGB, R, G and B are affected, creating changes in both the lightness / darkness of the image and it’s saturation. |
| Show Curves |
on
off |
By turning this control on, a graph will appear showing you how the G Levels plugin is affecting your image. This graph does not render onto your video. |
White Level
(Red / Y Controls
Green / Cb Controls
Blue / Cr Controls) |
0 to 255 |
Lowering White Level will brighten image. |
Black Level
(Red / Y Controls
Green / Cb Controls
Blue / Cr Controls) |
0 to 255 |
Raising Black Level will darken image. |
Gamma
(Red / Y Controls
Green / Cb Controls
Blue / Cr Controls) |
0.1 to 10 |
Controls the amount of gamma curve adjustment. |
White Output
(Red / Y Controls
Green / Cb Controls
Blue / Cr Controls) |
0 to 255 |
Lowering White Output will make the cahnnel dimmer by limiting the maximum brightness. |
Black Output
(Red / Y Controls
Green / Cb Controls
Blue / Cr Controls) |
0 to 255 |
Raising Black Output will make the dark areas of the channel brighter. |
White Curve
(Red / Y Controls
Green / Cb Controls
Blue / Cr Controls) |
-100% to 100% |
Positive values bend the bright part of the curve upwards, brightening highlights and negative values bend it downwards dimming highlights. |
Black Curve
(Red / Y Controls
Green / Cb Controls
Blue / Cr Controls) |
-100% to 100% |
Positive values bend the dark part of the curve upwards, brightening shadows and negative values bend it downwards darkening shadows. |
| Gamma Order |
Gamma First
Gamma Second |
Sets whether the gamma adjustment is calculated before or after the levels. |
| Clip Output Levels |
on
off |
By turning Clip Output Levels OFF, values beyond the end of the curve will be set to the extremes, and when Clip Output Levels is ON, values will remain constant. |
| Dither? |
on
off |
Adds a small amount of noise to reduce any banding artifacts. |
| Dither Amount |
1 to 10 |
Controls the amount of noise that gets added if Dither? is set to on. |
