frei0r-filter-opencvfacedetect

detect faces and draw shapes on them

Hierarchy

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstBaseTransform
                    ╰──GstVideoFilter
                        ╰──frei0r-filter-opencvfacedetect

Factory details

Authors: – Sebastian Dröge , binarymillenium, ddennedy

Classification: – Filter/Effect/Video

Rank – none

Plugin – frei0r

Package – GStreamer Bad Plug-ins

Pad Templates

sink

video/x-raw:
         format: { BGRA, RGBA, ABGR, ARGB, BGRx, RGBx, xBGR, xRGB, AYUV }
          width: [ 1, 2147483647 ]
         height: [ 1, 2147483647 ]
      framerate: [ 0/1, 2147483647/1 ]

Presence – always

Direction – sink

Object type – GstPad

src

video/x-raw:
         format: { BGRA, RGBA, ABGR, ARGB, BGRx, RGBx, xBGR, xRGB, AYUV }
          width: [ 1, 2147483647 ]
         height: [ 1, 2147483647 ]
      framerate: [ 0/1, 2147483647/1 ]

Presence – always

Direction – src

Object type – GstPad

Properties

alpha 

“alpha” gdouble

The alpha channel value for the shapes

Flags : Read / Write

Default value : 1

antialias 

“antialias” gboolean

Draw with antialiasing

Flags : Read / Write

Default value : false

classifier 

“classifier” gchararray

Full path to the XML pattern model for recognition; look in /usr/share/opencv/haarcascades

Flags : Read / Write

Default value : /usr/share/opencv/haarcascades/haarcascade_frontalface_default.xml

color-1-b 

“color-1-b” gfloat

The color of the first object

Flags : Read / Write

Default value : 1

color-1-g 

“color-1-g” gfloat

The color of the first object

Flags : Read / Write

Default value : 1

color-1-r 

“color-1-r” gfloat

The color of the first object

Flags : Read / Write

Default value : 1

color-2-b 

“color-2-b” gfloat

The color of the second object

Flags : Read / Write

Default value : 1

color-2-g 

“color-2-g” gfloat

The color of the second object

Flags : Read / Write

Default value : 0.5

color-2-r 

“color-2-r” gfloat

The color of the second object

Flags : Read / Write

Default value : 0

color-3-b 

“color-3-b” gfloat

The color of the third object

Flags : Read / Write

Default value : 1

color-3-g 

“color-3-g” gfloat

The color of the third object

Flags : Read / Write

Default value : 1

color-3-r 

“color-3-r” gfloat

The color of the third object

Flags : Read / Write

Default value : 0

color-4-b 

“color-4-b” gfloat

The color of the fourth object

Flags : Read / Write

Default value : 0

color-4-g 

“color-4-g” gfloat

The color of the fourth object

Flags : Read / Write

Default value : 1

color-4-r 

“color-4-r” gfloat

The color of the fourth object

Flags : Read / Write

Default value : 0

color-5-b 

“color-5-b” gfloat

The color of the fifth object

Flags : Read / Write

Default value : 0

color-5-g 

“color-5-g” gfloat

The color of the fifth object

Flags : Read / Write

Default value : 0.5

color-5-r 

“color-5-r” gfloat

The color of the fifth object

Flags : Read / Write

Default value : 1

neighbors 

“neighbors” gdouble

Minimum number of rectangles that makes up an object, divided by 100

Flags : Read / Write

Default value : 0.02

recheck 

“recheck” gdouble

How often to detect an object in number of frames, divided by 1000

Flags : Read / Write

Default value : 0.025

scale 

“scale” gdouble

Down scale the image prior detection

Flags : Read / Write

Default value : 0.666667

search-scale 

“search-scale” gdouble

The search window scale factor, divided by 10

Flags : Read / Write

Default value : 0.12

shape 

“shape” gdouble

The shape to draw: 0=circle, 0.1=ellipse, 0.2=rectangle, 1=random

Flags : Read / Write

Default value : 0

smallest 

“smallest” gdouble

Minimum window size in pixels, divided by 1000

Flags : Read / Write

Default value : 0

stroke 

“stroke” gdouble

Line width, divided by 100, or fill if 0

Flags : Read / Write

Default value : 0

threads 

“threads” gdouble

How many threads to use divided by 100; 0 uses CPU count

Flags : Read / Write

Default value : 0.01

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