news

Beyond Vision: CVAT Goes Multimodal and Introduces Audio Annotation. Learn more

Platform

Annotation & Labeling
AI Automation
SDK / API
Annotation Services

By industry

Automotive
Geospatial
Infrastructure
Logistics
Healthcare
Manufacturing
Agriculture
Sports & Media
Environmental
Security & Safety

Resources

All Resources
Blog
Changelog
Case Studies
Academy
Docs

Resources
CVAT Academy

Lecture 7 · Brush Tool in CVAT

Brush (Mask) Tool in CVAT (Overview)

Video lesson

PreviousBrush Tool in CVAT for Pixel-Accurate Segmentation NextBrush (Mask) Tool in CVAT (Practical Task)

Course outline

Lecture 1. Data Annotation 101: What It Is and Why It Matters
- What is Data Annotation? Definition, Use Cases, and Roles
Lecture 2. What a Data Annotator Does
- What Is a Data Annotator? Responsibilities, Tools, and Importance
Lecture 3. Data Confidentiality in Annotation
- Data Confidentiality in Annotation: Importance, Risks, and Best Practices
Lecture 4. Getting Started with CVAT
Lecture 5. Bounding Boxes in CVAT
Lecture 6. Polygons & Polylines in CVAT
Lecture 7. Brush Tool in CVAT
Lecture 8. Keypoints & Skeletons in CVAT
Lecture 9. Tags & Attributes in CVAT
Lecture 10. Cuboids in CVAT
Lecture 11. Ellipse Tool in CVAT
Lecture 12. Track Mode in CVAT
Lecture 13. AI Tools in CVAT
Lecture 14. Labeling Guidelines: How to Keep Annotations Consistent
- Labeling Guidelines: How to Keep Annotations Consistent
- Annotation Guidelines: How to Create Labeling Rules
Lecture 15. Annotation Quality: What “Good Labels” Look Like
- Annotation Quality: What “Good Labels” Look Like
- What “Good Labels” Look Like
Lecture 16. Quality Control Methods for Annotation in CVAT
- Quality Control for Annotation: Reviews, Checks, and Workflow Tips
- Quality Control Methods in CVAT

Site footer

Product updates and annotation insights, monthly.

Email address

By ticking this box, I agree to the processing of my personal data in accordance with the Privacy Policy and consent to receive marketing emails from CVAT.ai Corporation. I understand that I can unsubscribe at any time.

Product & Services

CVAT Online
CVAT Community
CVAT Enterprise
Computer Vision Annotation Services
Audio Annotation Services

Pricing

CVAT Online
CVAT Enterprise

Company

About
News
Careers
Support
Contact

Resources

Blog
Docs
Changelog
Case Studies
Academy
Tutorials
Guides

Solutions

Automotive
Geospatial
Infrastructure
Logistics

GDPR
CCPA
EU AI Act

© 2026 CVAT.ai Corporation

Terms
Privacy
Refund
Fair Usage
Status