Swap: Difference between revisions
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{{AvsPlusFullname}}<br> | |||
Up-to-date documentation: [https://avisynthplus.readthedocs.io/en/latest/avisynthdoc/corefilters/swap.html https://avisynthplus.readthedocs.io] | |||
</div> | |||
Swaps chroma channels in [[YUV]] clips. | Swaps chroma channels in [[YUV]] clips. | ||
__TOC__ | __TOC__ | ||
== Syntax and Parameters == | <!-- ==== Syntax and Parameters ==== --> | ||
<div style="max-width:62em" > | |||
{{FuncDefH4|SwapUV}} | {{FuncDefH4|SwapUV}} | ||
{{FuncDef | {{FuncDef | ||
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:Shorthand for '''UToY.'''[[ConvertToY8]] and '''VToY.'''[[ConvertToY8]], but faster. | :Shorthand for '''UToY.'''[[ConvertToY8]] and '''VToY.'''[[ConvertToY8]], but faster. | ||
{{FuncDefH4|YToUV}} | {{FuncDefH4|YToUV}} | ||
{{FuncDef | {{FuncDef | ||
|YToUV(clip ''clipU'', clip ''clipV'' [, clip ''clipY'' ] ) | |YToUV(clip ''clipU'', clip ''clipV'' [, clip ''clipY'' [, clip ''clipA'' ] ] ) | ||
}} | }} | ||
:Copies the ''Y'' (luma channel) of {{FuncArg|clipU}} to the ''U'' channel of the output clip and the ''Y'' (luma channel) of {{FuncArg|clipV}} to the ''V'' channel of the output clip. | :Copies the ''Y'' (luma channel) of {{FuncArg|clipU}} to the ''U'' channel of the output clip and the ''Y'' (luma channel) of {{FuncArg|clipV}} to the ''V'' channel of the output clip. | ||
:If {{FuncArg|clipY}} is given, copies the ''Y'' (luma channel) of {{FuncArg|clipY}} to the ''Y'' channel of the output clip. | :If {{FuncArg|clipY}} is given, copies the ''Y'' (luma channel) of {{FuncArg|clipY}} to the ''Y'' channel of the output clip. | ||
:{{AvsPluscon}} And if {{FuncArg|clipA}} is given too, copies the ''Y'' (luma channel) of {{FuncArg|clipA}} to the ''A'' channel of the output clip. | |||
:Depending on the color format, the image resolution can be changed. | :Depending on the color format, the image resolution can be changed. | ||
</div> | |||
== Examples == | |||
==== See Also ==== | |||
*Show [[RGB]] channels with [[ShowAlpha|ShowAlpha/Red/Green/Blue]]. | |||
*{{AvsPluscon}} [[Extract]] for {{Deep_color}} support. | |||
==== Examples ==== | |||
<div style="max-width:62em" > | |||
* Blur the U chroma channel | * Blur the U chroma channel | ||
<div {{BoxWidthIndent| | <div {{BoxWidthIndent|32|2}} > | ||
video = [[ColorBars]](512, 512).[[ConvertToYV12]] | video = [[ColorBars]](512, 512).[[ConvertToYV12]] | ||
u_chroma = '''UToY'''(video).[[Blur]](1.5) | u_chroma = '''UToY'''(video).[[Blur]](1.5) | ||
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</div> | </div> | ||
== Changes == | * Show ''U'' and ''V'' channels stacked for illustration purposes. | ||
** Note that with a [[YV12]] source (like the one below), the ''U'' and ''V'' images will be half the size of the original. | |||
** In the ''U'' and ''V'' images, gray will be at 128{{D}} and saturated colors will appear brighter or darker. | |||
{{HalfBreak}} | |||
:[[File:SwapEx-Sintel9150.jpg]] | |||
<div {{BoxWidthIndent|32|2}} > | |||
[[StackVertical]]( | |||
\ [[Subtitle]]("YV12 original", align=2), | |||
\ [[StackHorizontal]]( | |||
\ '''UtoY'''.Subtitle("UtoY", align=2), | |||
\ '''VtoY'''.Subtitle("VtoY", align=2) | |||
\ ) | |||
\ ) | |||
</div> | |||
</div> | |||
==== Changes ==== | |||
{| border="1" | {| border="1" | ||
|- | |- | ||
Latest revision as of 05:24, 17 September 2022
AviSynth+
Up-to-date documentation: https://avisynthplus.readthedocs.io
Swaps chroma channels in YUV clips.
SwapUV(clip clip)
- Swaps U and V (chroma) channels. Corrects certain decoding errors – faces blue instead of red, etc.
UToY(clip clip)
VToY(clip clip)
- Copies U or V chroma plane to the Y luma plane.
- All color (chroma) information is removed, so the image is now greyscale.
- Depending on the color format, the image resolution can be changed – i.e.,
- with a YV24 source, UToY is the same width and height as clip, but
- with a YV12 source, UToY is half clip's width and height.
UToY8(clip clip)
VToY8(clip clip)
- Shorthand for UToY.ConvertToY8 and VToY.ConvertToY8, but faster.
YToUV(clip clipU, clip clipV [, clip clipY [, clip clipA ] ] )
- Copies the Y (luma channel) of clipU to the U channel of the output clip and the Y (luma channel) of clipV to the V channel of the output clip.
- If clipY is given, copies the Y (luma channel) of clipY to the Y channel of the output clip.
- AVS+ And if clipA is given too, copies the Y (luma channel) of clipA to the A channel of the output clip.
- Depending on the color format, the image resolution can be changed.
See Also
- Show RGB channels with ShowAlpha/Red/Green/Blue.
- AVS+ Extract for Deep Color support.
Examples
- Blur the U chroma channel
video = ColorBars(512, 512).ConvertToYV12 u_chroma = UToY(video).Blur(1.5) YToUV(u_chroma, video.VToY) MergeLuma(video)
- Show U and V channels stacked for illustration purposes.
StackVertical( \ Subtitle("YV12 original", align=2), \ StackHorizontal( \ UtoY.Subtitle("UtoY", align=2), \ VtoY.Subtitle("VtoY", align=2) \ ) \ )
Changes
| v2.60 | Added UToY8, VToY8. |
| v2.60 | Added new color formats Y8, YV411, YV16 and YV24. |
