edgedetect

Performs canny edge detection on videos and images

Example launch line

 gst-launch-1.0 videotestsrc ! videoconvert ! edgedetect ! videoconvert ! xvimagesink

Hierarchy

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstBaseTransform
                    ╰──GstVideoFilter
                        ╰──GstOpencvVideoFilter
                            ╰──edgedetect

Factory details

Authors: – Michael Sheldon

Classification: – Filter/Effect/Video

Rank – none

Plugin – opencv

Package – GStreamer Bad Plug-ins

Pad Templates

`sink`

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

Presence – always

Direction – sink

Object type – GstPad

`src`

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

Presence – always

Direction – src

Object type – GstPad

Properties

aperture

“aperture” gint

Aperture size for Sobel operator (Must be either 3, 5 or 7

Flags : Read / Write

Default value : 3

mask

“mask” gboolean

Sets whether the detected edges should be used as a mask on the original input or not

Flags : Read / Write

Default value : true

threshold1

“threshold1” gint

Threshold value for canny edge detection

Flags : Read / Write

Default value : 50

threshold2

“threshold2” gint

Second threshold value for canny edge detection

Flags : Read / Write

Default value : 150

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