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Vignette Extension
Applies a vignette filter
Applies a vignette filter to a video source.
- [https://ffmpeg.org/ffmpeg-filters.html#vignette
It's an extension](https://ffmpeg.org/ffmpeg-filters.html#vignette
It's an extension)
- [https://ffmpeg.org/ffmpeg-filters.html#vignette
It's an extension](https://ffmpeg.org/ffmpeg-filters.html#vignette
| Type | Requried | Postion | PipelineInput |
|---|---|---|---|
[Switch] |
true | named | false |
Set vignette lens angle expression as a number of radians. The value is clipped in the [0,PI/2] range. Default value: "PI/5"
| Type | Requried | Postion | PipelineInput |
|---|---|---|---|
[String] |
false | 1 | false |
Set vignette center x coordinates expression. By default "w/2",
| Type | Requried | Postion | PipelineInput |
|---|---|---|---|
[String] |
false | 2 | false |
Set vignette center Y coordinates expression. By default "w/2",
| Type | Requried | Postion | PipelineInput |
|---|---|---|---|
[String] |
false | 3 | false |
Set forward/backward mode. Available values are:
- ‘forward’
- The larger the distance from the central point, the darker the image becomes.
- ‘backward’
- The larger the distance from the central point, the brighter the image becomes.
- This can be used to reverse a vignette effect, though there is no automatic detection to extract the lens angle and other settings (yet).
- It can also be used to create a burning effect.
| Type | Requried | Postion | PipelineInput |
|---|---|---|---|
[String] |
false | 4 | false |
Set evaluation mode for the -VignetteAngle, -VignetteCenterX, -VignetteCenterY expressions *‘init’
- Evaluate expressions only once during the filter initialization. *‘frame’
- Evaluate expressions for each incoming frame.
- This is way slower than the ‘init’ mode since it requires all the scalers to be re-computed, but it allows advanced dynamic expressions.
| Type | Requried | Postion | PipelineInput |
|---|---|---|---|
[String] |
false | 5 | false |
Set dithering to reduce the circular banding effects
| Type | Requried | Postion | PipelineInput |
|---|---|---|---|
[Switch] |
false | named | false |
Set vignette aspect. This setting allows one to adjust the shape of the vignette. Setting this value to the SAR of the input will make a rectangular vignetting following the dimensions of the video.
| Type | Requried | Postion | PipelineInput |
|---|---|---|---|
[String] |
false | 6 | false |
Extension/Vignette.rd.ext.ps1 -Vignette [[-VignetteAngle] <String>] [[-VignetteCenterX] <String>] [[-VignetteCenterY] <String>] [[-VignetteDirection] <String>] [[-VignetteEvaluatioMode] <String>] [-DoNotDitherVignette] [[-VignetteAspectRatio] <String>] [<CommonParameters>]