Filter: vidstab

Plugin Information

title: Vid.Stab Detect and Transform
media types: Video
description: Stabilize Video (for wiggly/rolling video)
version: 1
creator: Marco Gittler g.marco@freenet.de
copyright: Jakub Ksiezniak
license: GPL
URL: http://public.hronopik.de/vid.stab/

Notes

This filter requires two passes. The first pass performs analysis and stores the result in a file. Upon successful completion of the analysis, the "results" property is updated with the name of the file storing the results. The second pass applies the results to the image. To use with melt, use 'melt … -consumer xml:output.mlt all=1 real_time=-1' for the first pass. Parallel processing (real_time < -1 or > 1) is not supported for the first pass. For the second pass, use output.mlt as the input.

Parameters

results

title: Analysis Results
description: Set after analysis. Used during application. A set of image motion information that describes the analyzed clip. When results are not supplied, the filter computes the results and stores them in a file. This property is updated with the name of that file when the last frame has been processed.
type: string
readonly: no
required: no

filename

title: Target File Name
description: Used during analysis. The name of the file to store the analysis results in.
type: string
readonly: no
required: no
default: vidstab.trf
widget: fileopen

shakiness

title: Shakiness
description: Used during analysis. How shaky the video is.
type: integer
readonly: no
required: no
minimum: 1
maximum: 10
default: 4
widget: spinner

accuracy

title: Accuracy
description: Used during analysis. The accuracy of shakiness detection.
type: integer
readonly: no
required: no
minimum: 1
maximum: 15
default: 4
widget: spinner

stepsize

title: Stepsize
description: Used during analysis. The step size of the search process.
type: integer
readonly: no
required: no
minimum: 0
maximum: 100
default: 6
widget: spinner

mincontrast

title: Minimum Contrast
description: Used during analysis. Below this contrast, a field is discarded.
type: float
readonly: no
required: no
minimum: 0
maximum: 1
default: 0.3
widget: spinner

show

title: Show
description: Used during analysis. 0 = draw nothing 1 or 2 = show fields and transforms
type: integer
readonly: no
required: no
minimum: 0
maximum: 2
default: 0
widget: spinner

tripod

title: Tripod
description: Used during analysis and application. if 0, tripod mode is disabled. if > 0, specifies the frame to be used as a reference frame for tripod mode During application, relative and smoothing properties are both ignored if tripod mode is in use.
type: integer
readonly: no
required: no
minimum: 0
maximum: 100000
default: 0
widget: spinner

smoothing

title: Smoothing
description: Used during application. Number of frames for lowpass filtering (2N + 1 frames)
type: integer
readonly: no
required: no
minimum: 0
maximum: 100
default: 15
widget: spinner

maxshift

title: Maxshift
description: Used during application. Maximum number of pixels to transform the image. -1 = no limit
type: integer
readonly: no
required: no
minimum: -1
maximum: 1000
default: -1
unit: pixels
widget: spinner

maxangle

title: Maxangle
description: Used during application. Maximum angle to rotate, -1 = no limit
type: float
readonly: no
required: no
minimum: -1
maximum: 3.142
default: -1
unit: radians
widget: spinner

crop

title: Crop
description: Used during application. 0 = keep border, 1 = black background
type: integer
readonly: no
required: no
minimum: 0
maximum: 1
default: 0
widget: spinner

invert

title: Invert
description: Used during application. Invert transforms
type: integer
readonly: no
required: no
minimum: 0
maximum: 1
default: 0
widget: spinner

relative

title: Relative
description: Used during application. Consider transforms as absolute (0) or relative (1)
type: integer
readonly: no
required: no
minimum: 0
maximum: 1
default: 1
widget: spinner

zoom

title: Zoom
description: Used during application. Additional zoom amount
type: integer
readonly: no
required: no
minimum: -500
maximum: 500
default: 0
unit: percent
widget: spinner

optzoom

title: Optimal Zoom
description: Used during application. Automatically determine optimal zoom. 1 - static zoom, 2 - adaptive zoom
type: integer
readonly: no
required: no
minimum: 0
maximum: 2
default: 1
widget: spinner

zoomspeed

title: Optimal Zoom Speed
description: Used during application. Zoom per frame (used when optzoom = 2)
type: float
readonly: no
required: no
minimum: 0
maximum: 1
default: 0.25
unit: percent
widget: spinner

reload

title: Reload Results
description: The application should set this to 1 when it updates the results property to indicate that the results should be reloaded.
type: integer
readonly: no
required: no
minimum: 0
maximum: 1

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