AddBorders
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| − | {{ | + | <div {{BlueBox2|40|0|3px solid purple}} > |
| + | {{AvsPlusFullname}}<br> | ||
| + | Up-to-date documentation: [https://avisynthplus.readthedocs.io/en/latest/avisynthdoc/corefilters/addborders.html https://avisynthplus.readthedocs.io] | ||
| + | </div> | ||
| − | |||
| − | + | Add black or colored borders, increasing frame size. This has several common uses: | |
| + | * Adjust the [[Aspect_ratios|aspect ratio]] (make a 4:3 clip into 16:9 without stretching) | ||
| + | * [[Splice]] a smaller resolution clip to a larger one without resizing | ||
| + | * Together with [[Crop]], shift a clip horizontally or vertically – see below. | ||
| + | See also: [[Letterbox]], which adds borders without changing frame size. | ||
| − | |||
| − | + | == Syntax and Parameters == | |
| + | {{FuncDef | ||
| + | |AddBorders( clip ''clip'', int ''left'', int ''top'', int ''right'', int ''bottom'' [, int ''color'' ] [, int ''color_yuv'' {{AvsPluscon}}]) | ||
| + | }} | ||
| − | # | + | :{{Par2|left, top, right, bottom|int|(required)}} |
| − | Crop(0, 0, | + | ::Border width in pixels. |
| + | ::*For [[YUY2]] and [[YV16]] sources, {{FuncArg|left}} and {{FuncArg|right}} must be [[Modulo|mod2]] (divisible by 2). | ||
| + | ::*For [[YV411]] sources, {{FuncArg|left}} and {{FuncArg|right}} must be [[Modulo|mod4]] (divisible by 4). | ||
| + | ::*For [[YV12]] sources, all four border widths must be mod2. | ||
| + | |||
| + | :{{Par2|color|int|(black)}} | ||
| + | ::Border color; specified as an RGB value. See [[Colors|this page]] for more information on specifying colors. | ||
| + | ::*For YUV clips, colors are converted from full-range (0–255) to tv-range (16–235). | ||
| + | |||
| + | :{{Par2|color_yuv|int|}} {{AvsPluscon}} | ||
| + | ::Specifies the color of the border using YUV values. It requires setting pixel_type to one of the YUV formats; otherwise it doesn't do anything. | ||
| + | ::Similar to {{FuncArg|color_yuv}} in BlankClip | ||
| + | |||
| + | == Examples and Notes == | ||
| + | <div style="max-width:54em" > | ||
| + | * Add ''letterbox'' (top and bottom) borders: | ||
| + | <div {{BoxWidthIndent|42|2}} > | ||
| + | ## add dark blue borders, using [[Colors|hex color notation]] | ||
| + | AddBorders(0, 86, 0, 86, $00008B) | ||
| + | |||
| + | ## same as above, using [[Preset_colors|named preset color]] | ||
| + | AddBorders(0, 86, 0, 86, color_darkblue) | ||
| + | |||
| + | ## full scale black border using color_yuv [[Colors|hex color notation]] | ||
| + | AddBorders(0, 86, 0, 86, color_yuv = $008080) | ||
| + | |||
| + | </div> | ||
| + | |||
| + | * Be aware that many older lossy compression algorithms don't deal well with solid-color borders, unless the border happens to fall on a [[Wikipedia:Macroblock|macroblock]] boundary (16 pixels for MPEG). | ||
| + | |||
| + | * Use '''AddBorders''' in combination with [[Crop]] to ''shift'' an image without changing the frame size: | ||
| + | <div {{BoxWidthIndent|36|2}} > | ||
| + | # Shift an image 2 pixels to the right | ||
| + | Crop(0, 0, Width-2, Height) | ||
AddBorders(2, 0, 0, 0) | AddBorders(2, 0, 0, 0) | ||
| + | </div> | ||
| + | : Note, shifting this way must be done in 1- or 2-pixel increments, depending on color format. | ||
| + | : You can shift in ''sub''-pixel increments with [[Resize#General_information|Resize]]. | ||
| + | </div> | ||
| − | |||
| − | |||
| − | |||
[[Category:Internal filters]] | [[Category:Internal filters]] | ||
| + | [[Category:Borders_and_Cropping]] | ||
Latest revision as of 04:33, 18 September 2022
AviSynth+
Up-to-date documentation: https://avisynthplus.readthedocs.io
Add black or colored borders, increasing frame size. This has several common uses:
- Adjust the aspect ratio (make a 4:3 clip into 16:9 without stretching)
- Splice a smaller resolution clip to a larger one without resizing
- Together with Crop, shift a clip horizontally or vertically – see below.
See also: Letterbox, which adds borders without changing frame size.
[edit] Syntax and Parameters
AddBorders( clip clip, int left, int top, int right, int bottom [, int color ] [, int color_yuv AVS+])
- int left, top, right, bottom = (required)
- int color = (black)
- Border color; specified as an RGB value. See this page for more information on specifying colors.
- For YUV clips, colors are converted from full-range (0–255) to tv-range (16–235).
- Border color; specified as an RGB value. See this page for more information on specifying colors.
- int color_yuv =
AVS+- Specifies the color of the border using YUV values. It requires setting pixel_type to one of the YUV formats; otherwise it doesn't do anything.
- Similar to color_yuv in BlankClip
[edit] Examples and Notes
- Add letterbox (top and bottom) borders:
## add dark blue borders, using hex color notation AddBorders(0, 86, 0, 86, $00008B) ## same as above, using named preset color AddBorders(0, 86, 0, 86, color_darkblue) ## full scale black border using color_yuv hex color notation AddBorders(0, 86, 0, 86, color_yuv = $008080)
- Be aware that many older lossy compression algorithms don't deal well with solid-color borders, unless the border happens to fall on a macroblock boundary (16 pixels for MPEG).
- Use AddBorders in combination with Crop to shift an image without changing the frame size:
# Shift an image 2 pixels to the right Crop(0, 0, Width-2, Height) AddBorders(2, 0, 0, 0)
- Note, shifting this way must be done in 1- or 2-pixel increments, depending on color format.
- You can shift in sub-pixel increments with Resize.
