frei0r-filter-light-graffiti

Creates light graffitis from a video by keeping the brightest spots.

Hierarchy

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstBaseTransform
                    ╰──GstVideoFilter
                        ╰──frei0r-filter-light-graffiti

Factory details

Authors: – Sebastian Dröge , Simon A. Eugster (Granjow)

Classification: – Filter/Effect/Video

Rank – none

Plugin – frei0r

Package – GStreamer Bad Plug-ins

Pad Templates

sink

video/x-raw:
         format: RGBA
          width: [ 1, 2147483647 ]
         height: [ 1, 2147483647 ]
      framerate: [ 0/1, 2147483647/1 ]

Presence – always

Direction – sink

Object type – GstPad

src

video/x-raw:
         format: RGBA
          width: [ 1, 2147483647 ]
         height: [ 1, 2147483647 ]
      framerate: [ 0/1, 2147483647/1 ]

Presence – always

Direction – src

Object type – GstPad

Properties

backgroundweight 

“backgroundweight” gdouble

Describes how strong the (accumulated) background should shine through

Flags : Read / Write

Default value : 0

blackreference 

“blackreference” gboolean

Uses black as background image instead of the first frame.

Flags : Read / Write

Default value : false

dim 

“dim” gdouble

Dimming of the light mask

Flags : Read / Write

Default value : 0

longalpha 

“longalpha” gdouble

Alpha value for moving average

Flags : Read / Write

Default value : 0

loweroverexposure 

“loweroverexposure” gdouble

Prevents some overexposure if the light source stays steady too long (varying speed)

Flags : Read / Write

Default value : 0

nonlineardim 

“nonlineardim” gboolean

Nonlinear dimming (may look more natural)

Flags : Read / Write

Default value : false

reset 

“reset” gboolean

Reset filter masks

Flags : Read / Write

Default value : false

saturation 

“saturation” gdouble

Saturation of lights

Flags : Read / Write

Default value : 0.25

sensitivity 

“sensitivity” gdouble

Sensitivity of the effect for light (higher sensitivity will lead to brighter lights)

Flags : Read / Write

Default value : 0.2

statsbrightness 

“statsbrightness” gboolean

Display the brightness and threshold, for adjusting the brightness threshold parameter

Flags : Read / Write

Default value : false

statsdifference 

“statsdifference” gboolean

Display the background difference and threshold

Flags : Read / Write

Default value : true

statsdiffsum 

“statsdiffsum” gboolean

Display the sum of the background difference and the threshold

Flags : Read / Write

Default value : false

thresholdbrightness 

“thresholdbrightness” gdouble

Brightness threshold to distinguish between foreground and background

Flags : Read / Write

Default value : 0.588235

thresholddifference 

“thresholddifference” gdouble

Threshold: Difference to background to distinguish between fore- and background

Flags : Read / Write

Default value : 0

thresholddiffsum 

“thresholddiffsum” gdouble

Threshold for sum of differences. Can in most cases be ignored (set to 0).

Flags : Read / Write

Default value : 0

transparentbackground 

“transparentbackground” gboolean

Make the background transparent

Flags : Read / Write

Default value : false

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