removeSublabel

Remove sublabel from label in label definition creator object

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Syntax

removeSublabel(ldc,labelName,sublabelName)

Description

removeSublabel(ldc,labelName,sublabelName) removes the specified sublabel from the indicated label. This label must be in the label definition creator object ldc.

Note

Removing a sublabel also removes any attributes associated with that sublabel.

example

Examples

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Open Live Script

Load an existing label definitions table into the workspace.

labelDefFile = fullfile(toolboxdir('vision'), 'visiondata', 'labelDefsWithAttributes.mat');
ld = load(labelDefFile)
ld = struct with fields:
    labelDefs: [4×4 table]

Create a label definition creator object from the label definitions table.

ldc = labelDefinitionCreator(ld.labelDefs)
ldc = 
labelDefinitionCreator contains the following labels:

	Vehicle with 0 sublabels and 3 attributes and belongs to None group.	(info)
	Pedestrian with 0 sublabels and 0 attributes and belongs to None group.	(info)
	LaneMarker with 0 sublabels and 2 attributes and belongs to None group.	(info)
	TrafficLight with 1 sublabels and 0 attributes and belongs to None group.	(info)

For more details about attributes and sublabels, use the info method.

Display information about the label "TrafficLight" defined in the label definition creator object.

info(ldc,'TrafficLight')
           Name: "TrafficLight"
           Type: Rectangle
     LabelColor: {''}
          Group: "None"
     Attributes: []
      Sublabels: "Light"
    Description: 'Mark a tight bounding box around the traffic light. Use the sublabels to mark each individual light'

Remove the sublabel "Light" from the label "TrafficLight". 

removeSublabel(ldc,'TrafficLight','Light')

Display the details of the label definition creator object to confirm that a sublabel is removed from the label "TrafficLight".

ldc
ldc = 
labelDefinitionCreator contains the following labels:

	Vehicle with 0 sublabels and 3 attributes and belongs to None group.	(info)
	Pedestrian with 0 sublabels and 0 attributes and belongs to None group.	(info)
	LaneMarker with 0 sublabels and 2 attributes and belongs to None group.	(info)
	TrafficLight with 0 sublabels and 0 attributes and belongs to None group.	(info)

For more details about attributes and sublabels, use the info method.

Display information about the label "TrafficLight". Confirm that the sublabel "Light" is removed.

info(ldc,'TrafficLight')
           Name: "TrafficLight"
           Type: Rectangle
     LabelColor: {''}
          Group: "None"
     Attributes: []
      Sublabels: []
    Description: 'Mark a tight bounding box around the traffic light. Use the sublabels to mark each individual light'

Input Arguments

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Label definition creator, specified as a labelDefinitionCreator object.

Label name, specified as a character vector or string scalar that uniquely identifies the label to which the sublabel is associated.

Sublabel name, specified as a character vector or string scalar that identifies the sublabel to be removed from the indicated label labelName.

Version History

Introduced in R2018b

See Also

Objects

Functions