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addLabel

Add label to label definition creator object

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Syntax

addLabel(ldc,labelName,typeOfLabel)
addLabel(___,Name,Value)

Description

addLabel(ldc,labelName,typeOfLabel) adds a label with the specified name and type to the label definition creator object ldc.

example

addLabel(___,Name,Value) specifies options using one or more name-value arguments in addition to the input arguments in the previous syntax.

Examples

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Open Live Script

Create a labelDefinitionCreator.

ldc = labelDefinitionCreator;

Add a label named 'Car'.

addLabel(ldc,'Car',labelType.Rectangle);

Inspect the label.

ldc
ldc = 
labelDefinitionCreator contains the following labels:

	Car with 0 sublabels and 0 attributes and belongs to None group.	(info)

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

Add another label named 'StopSign' in a group named 'TrafficSign'. Add a description.

addLabel(ldc,'StopSign','Rectangle','Group','TrafficSign','Description','Bounding boxes for stop signs');

Inspect the labels.

ldc
ldc = 
labelDefinitionCreator contains the following labels:

	Car with 0 sublabels and 0 attributes and belongs to None group.	(info)
	StopSign with 0 sublabels and 0 attributes and belongs to TrafficSign group.	(info)

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

Create an empty label definition creator object.

ldc = labelDefinitionCreator
ldc = 
labelDefinitionCreator with 0 labels. Use the

Add label "Vehicle" to the label definition creator object. Specify the type of label as a rectangle.

addLabel(ldc,'Vehicle',labelType.Rectangle)

Add label "StopSign" to the label definition creator object. Specify the type of label as a rectangle and add a description to the label.

addLabel(ldc,'StopSign',labelType.Rectangle,'Description','Bounding boxes for stop signs')

Display the details of the label definition creator object.

ldc
ldc = 
labelDefinitionCreator contains the following labels:

	Vehicle with 0 sublabels and 0 attributes and belongs to None group.	(info)
	StopSign 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 "Vehicle" using the object function info.

info(ldc,'Vehicle')
           Name: "Vehicle"
           Type: Rectangle
     LabelColor: {''}
          Group: "None"
     Attributes: []
      Sublabels: []
    Description: ' '

Display information about the label "StopSign" using the object function info.

info(ldc,'StopSign')
           Name: "StopSign"
           Type: Rectangle
     LabelColor: {''}
          Group: "None"
     Attributes: []
      Sublabels: []
    Description: 'Bounding boxes for stop signs'

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 be added.

Type of label, specified as one of these values:

  • labelType enumeration — You can use any of these labelType enumerators to specify the type of label: Rectangle, Line, PixelLabel, Scene, or Custom.

Example: addLabel(ldc,'Car',labelType.Rectangle);

  • Character vector or string scalar — This value must partially or fully match one of the labelType enumerators.

Example: addLabel(ldc,'Car','Rec');

Name-Value Arguments

Specify optional pairs of arguments as Name1=Value1,...,NameN=ValueN, where Name is the argument name and Value is the corresponding value. Name-value arguments must appear after other arguments, but the order of the pairs does not matter.

Before R2021a, use commas to separate each name and value, and enclose Name in quotes.

Example: addLabel(ldc,'Car',labelType.Rectangle,'Description','Type of Vehicle');

Group name, specified as a comma-separated pair consisting of 'Group' and a character vector or string scalar. Use this name-value pair to specify a name for a group of labels.

Label description, specified as a comma-separated pair consisting of 'Description' and a character vector or string scalar. Use this name-value pair to describe the label.

Version History

Introduced in R2018b

See Also

Objects

Functions