editAttributeDescription
Modify description of attribute in label definition creator object
Description
editAttributeDescription(
modifies the description of an attribute under the label or sublabel identified by
ldc
,labelName
,attributeName
,description
)labelName
. The label or sublabel must be in the label definition
creator object ldc
.
Examples
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.
Modify the Description of Attribute Under a Label
Display information about the label "Vehicle".
info(ldc,'Vehicle')
Name: "Vehicle" Type: Rectangle LabelColor: {''} Group: "None" Attributes: ["Class" "Color" "View"] Sublabels: [] Description: 'Draw a tight bounding box around the vehicle. Use this label for cars, buses and trailers.'
Display information about the attribute "Color" under the label "Vehicle".
info(ldc,'Vehicle/Color')
Name: "Color" Type: String DefaultValue: "" Description: 'Color of the vehicle, specified as a string, such as red, blue, white.'
Modify the description of the attribute "Color" under the label "Vehicle".
editAttributeDescription(ldc,'Vehicle','Color','Color of the vehicle, specified as a string, e.g. "red".')
Display information about the label "Vehicle" to verify the modified attribute description.
info(ldc,'Vehicle/Color')
Name: "Color" Type: String DefaultValue: "" Description: 'Color of the vehicle, specified as a string, e.g. "red".'
Modify the Description of Attribute Under a Sublabel
Display information about the label "TrafficLight".
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'
Display information about the sublabel "Light" under the label "TrafficLight".
info(ldc,'TrafficLight/Light')
Name: "Light" Type: Rectangle Attributes: ["Active" "Color"] Sublabels: [] Description: 'Mark a tight bounding box around each light.'
Display information about the attribute "Active" under the sublabel "TrafficLight/Light".
info(ldc,'TrafficLight/Light/Active')
Name: "Active" Type: Logical DefaultValue: 0 Description: 'Mark true if this light is active and false if not.'
Modify the description of the attribute "Active" under the sublabel "TrafficLight/Light".
editAttributeDescription(ldc,'TrafficLight/Light','Active','Is Active: true (DefaultValue: 1), false (DefaultValue: 0)')
Display information about the attribute "Active" to verify the modified attribute description.
info(ldc,'TrafficLight/Light/Active')
Name: "Active" Type: Logical DefaultValue: 0 Description: 'Is Active: true (DefaultValue: 1), false (DefaultValue: 0)'
Input Arguments
Label definition creator, specified as a labelDefinitionCreator
object.
Label or sublabel name, specified as a character vector or string scalar that uniquely identifies the label or sublabel to which the attribute is associated.
To specify a label, use the form 'labelName'.
To specify a sublabel, use the form 'labelName/sublabelName'. In this case, the attribute is associated with the sublabel.
Attribute name, specified as a character vector or string scalar that identifies the attribute for which the description is to be updated.
Description, specified as a character vector or string scalar that contains the new
description for the attribute identified by attributeName
.
Version History
Introduced in R2018b
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