> For the complete documentation index, see [llms.txt](https://docs.imerit.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.imerit.net/labeling/labeling-tools.md). # Labeling Classes Reference guide for all annotation tools available in Ango Hub

Labeling classes define the categories and annotation structures used during the labeling process in Ango Hub. Each class is associated with a specific labeling tool and determines how annotators interact with the data while creating annotations. Ango Hub supports a wide range of labeling tools designed for different data types and annotation needs, such as spatial annotations (e.g., bounding boxes or polygons), classification tools, text-based inputs, and relationship annotations. ## List of Labeling Tools on Ango Hub ### Tools

			Cover image
Bounding Box	Image, Video, DICOM, Medical	Bounding Box	https://angohub-docs-assets.s3.eu-central-1.amazonaws.com/tool-icons/rectangular/bounding-box.png
Rotated Bounding Box	Image, Video, Medical	Rotated Bounding Box	https://angohub-docs-assets.s3.eu-central-1.amazonaws.com/tool-icons/rectangular/rotated-bounding-box.png
Polygon	Image, Video, DICOM	Polygon	https://angohub-docs-assets.s3.eu-central-1.amazonaws.com/tool-icons/rectangular/polygon.png
Polyline	Image, Video, Medical, DICOM	Polyline	https://angohub-docs-assets.s3.eu-central-1.amazonaws.com/tool-icons/rectangular/polyline.png
Segmentation	Image, Video	Segmentation	https://angohub-docs-assets.s3.eu-central-1.amazonaws.com/tool-icons/rectangular/segmentation.png
Entity	Audio, Text	Entity	https://angohub-docs-assets.s3.eu-central-1.amazonaws.com/tool-icons/rectangular/entity.png
Point	Image, Video, DICOM, Medical	Point	https://angohub-docs-assets.s3.eu-central-1.amazonaws.com/tool-icons/rectangular/point.png
Circle	Image, Video	Circle	https://angohub-docs-assets.s3.eu-central-1.amazonaws.com/tool-icons/rectangular/circle.png
PDF	PDF	PDF Tool	https://angohub-docs-assets.s3.eu-central-1.amazonaws.com/tool-icons/rectangular/pdf.png
Brush	Image	Brush	https://angohub-docs-assets.s3.eu-central-1.amazonaws.com/tool-icons/rectangular/brush.png
Voxel Brush	DICOM, Medical	Voxel Brush	https://angohub-docs-assets.s3.eu-central-1.amazonaws.com/tool-icons/rectangular/voxel-brush.png
Message	LLM	Message	https://angohub-docs-assets.s3.eu-central-1.amazonaws.com/tool-icons/rectangular/message.png
Angle	DICOM, Medical	Angle	https://angohub-docs-assets.s3.eu-central-1.amazonaws.com/tool-icons/rectangular/angle.png
Skeleton	Image, Video	Skeleton	https://angohub-docs-assets.s3.eu-central-1.amazonaws.com/tool-icons/rectangular/skeleton.png

### Classifications

			Cover image
Radio	Audio, Image, Video, DICOM, Medical, PDF, Text, LLM, Markdown	Radio	https://angohub-docs-assets.s3.eu-central-1.amazonaws.com/tool-icons/rectangular/radio.png
Checkbox	Audio, Image, Video, DICOM, Medical, PDF, Text, LLM, Markdown	Checkbox	https://angohub-docs-assets.s3.eu-central-1.amazonaws.com/tool-icons/rectangular/checkbox.png
Single-Select Dropdown	Audio, Image, Video, DICOM, Medical, PDF, Text, LLM, Markdown	Single-Select Dropdown	https://angohub-docs-assets.s3.eu-central-1.amazonaws.com/tool-icons/rectangular/single-select-dropdown.png
Multi-Select Dropdown	Audio, Image, Video, DICOM, Medical, PDF, Text, LLM, Markdown	Multi-Select Dropdown	https://angohub-docs-assets.s3.eu-central-1.amazonaws.com/tool-icons/rectangular/multi-select-dropdown.png
Single-Select Tree	Audio, Image, Video, DICOM, Medical, PDF, Text, LLM, Markdown	Tree Dropdown Tools	https://angohub-docs-assets.s3.eu-central-1.amazonaws.com/tool-icons/rectangular/single-select-tree.png
Multi-Select Tree	Audio, Image, Video, DICOM, Medical, PDF, Text, LLM, Markdown	Tree Dropdown Tools	https://angohub-docs-assets.s3.eu-central-1.amazonaws.com/tool-icons/rectangular/multi-select-tree.png
Text	Audio, Image, Video, DICOM, Medical, PDF, Text, LLM, Markdown	Text	https://angohub-docs-assets.s3.eu-central-1.amazonaws.com/tool-icons/rectangular/text.png
Slider	Audio, Image, Video, DICOM, Medical, PDF, Text, LLM, Markdown	Slider	slider-in-editor.png

### Data

			Cover image
File Upload Box	Audio, Image, Video, DICOM, Medical, PDF, Text, LLM, Markdown	File Upload Box	https://angohub-docs-assets.s3.eu-central-1.amazonaws.com/tool-icons/rectangular/file-upload-box.png

### Relations

			Cover image
Single Relation	Audio, Image, Video, DICOM, PDF, Text	Single Relation	https://angohub-docs-assets.s3.eu-central-1.amazonaws.com/tool-icons/rectangular/single-relation.png
Group Relation	Audio, Image, Video, DICOM, PDF, Text	Group Relation	https://angohub-docs-assets.s3.eu-central-1.amazonaws.com/tool-icons/rectangular/group-relation.png

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