Image and Video Labeling

Interactive image and video labeling for object detection, semantic segmentation, and image classification

Use the Image Labeler and the Video Labeler app to interactively label ground truth data in a collection of images, video, or sequence of images. You can label rectangular regions of interest (ROIs) for object detection, pixels for semantic segmentation, and scenes for image classification. The app also includes computer vision algorithms to automate the labeling of ground truth data for use with detection and tracking algorithms. It also provides an API and workflow that enables you to import your own algorithms to automate the labeling of ground truth data.

To get started labeling a collection of images, see Get Started with the Image Labeler. To get started labeling a video, see Get Started with the Video Labeler.

Apps

Image Labeler	Label images for computer vision applications
Video Labeler	Label video for computer vision applications

Functions

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Use Ground Truth Labels

`attributeType`	Attribute type enumerations for labeling
`changeFilePaths`	Change file paths in ground truth data
`labelType`	Label type enumerations for labeling
`selectLabelsByGroup`	Select ground truth labels by label group
`selectLabelsByType`	Select ground truth labels by label type
`selectLabelsByName`	Select ground truth labels by label name
`objectDetectorTrainingData`	Create training data for an object detector
`pixelLabelDatastore`	Datastore for pixel label data
`pixelLabelTrainingData`	Create training data for semantic segmentation from ground truth
`groundTruth`	Ground truth label data

Load Ground Truth Data

groundTruthDataSource Object for storing ground truth data sources

Create Label Definitions

`labelDefinitionCreator`	Object for storing, modifying and creating label definitions table
`create`	Create label definitions table from the label definition creator object
`info`	Display information about a label, sublabel, or attribute stored in label definition creator object
`addLabel`	Add label to label definition creator object
`addSublabel`	Add sublabel to label in label definition creator object
`addAttribute`	Add attributes to label or sublabel in label definition creator object
`editLabelGroup`	Modify a label group name
`editGroupName`	Change group name
`editLabelDescription`	Modify description of label or sublabel in label definition creator object
`editAttributeDescription`	Modify description of attribute in label definition creator object
`removeLabel`	Remove label from label definition creator object
`removeSublabel`	Remove sublabel from label in label definition creator object
`removeAttribute`	Remove attribute from label or sublabel in label definition creator object
`groundTruth`	Ground truth label data

Automate Labeling

`vision.labeler.AutomationAlgorithm`	Interface for algorithm automation in ground truth labeling
`initialize`	Initialize state for algorithm execution (optional)
`run`	Run label automation on every frame in interval
`terminate`	Terminate automated algorithm (optional)
`checkSetup`	Set up validation (optional)
`checkSignalType`	Validate signal type
`checkLabelDefinition`	Validate label definition
`settingsDialog`	Display algorithm settings (optional)
`vision.labeler.mixin.Temporal`	Mixin interface for adding temporal context to automation algorithms
`supportsReverseAutomation`	Set reverse algorithm automation flag

Topics

Get Started

Choose an App to Label Ground Truth Data

Decide which app to use to label ground truth data: Image Labeler, Video Labeler, Ground Truth Labeler, Lidar Labeler, Signal Labeler, or Audio Labeler.

Get Started with the Image Labeler

Interactively label rectangular ROIs for object detection, pixels for semantic segmentation, and scenes for image classification.

Get Started with the Video Labeler

Interactively label rectangular ROIs, polylines, or pixels in a video or image sequence.

Keyboard Shortcuts and Mouse Actions for Image Labeler

Use keyboard shortcuts and mouse actions to increase productivity while using the Image Labeler app.

Keyboard Shortcuts and Mouse Actions for Video Labeler

Use keyboard shortcuts and mouse actions to increase productivity while using the Video Labeler app.