List of manual image annotation tools explained

Manual image annotation is the process of manually defining regions in an image and creating a textual description of those regions. Such annotations can for instance be used to train machine learning algorithms for computer vision applications.

This is a list of computer software which can be used for manual annotation of images.

Softwareclass=unsortable DescriptionPlatformLicenseclass=unsortable References
Computer Vision Annotation Tool (CVAT)Computer Vision Annotation Tool (CVAT) is a free, open source, web-based annotation tool which helps to label video and images for computer vision algorithms. CVAT has many powerful features: interpolation of bounding boxes between key frames, automatic annotation using TensorFlow OD API and deep learning models in Intel OpenVINO IR format, shortcuts for most of critical actions, dashboard with a list of annotation tasks, LDAP and basic authorizations, etc. It was created for and used by a professional data annotation team. UX and UI were optimized especially for computer vision annotation tasks.JavaScript, HTML, CSS, Python, DjangoMIT License[1] [2] [3]
LabelMeOnline annotation tool to build image databases for computer vision research.Perl, JavaScript, HTML, CSS[4] MIT License
EncordEncord is an automated annotation platform for AI-assisted image annotation, video annotation, and dataset management.
  • Data Management: Compile your raw data into curated datasets, organize datasets into folders, and send datasets for labeling. AI-assisted Labeling: Automate 97% of your annotations with 99% accuracy using auto-annotation features powered by Meta's Segment Anything Model or GPT-4's LLaVA.Collaboration: Integrate human-in-the-loop seamlessly with customized Workflows - create workflows with the no-code drag and drop builder to fit your data ops & ML pipelines.
  • Quality Assurance: Robust annotator management & QA workflows to track annotator performance and increase label quality. Integrated Data Labeling Services for all Industries: outsource your labeling tasks to an expert workforce of vetted, trained and specialized annotators to help you scale.
  • Video Labeling Tool: provides the same support for video annotation. One of the leading video annotation tools with positive customer reviews, providing automated video annotations without frame rate errors.
    Robust Security Functionality: label audit trails, encryption, FDA, CE Compliance, and HIPAA compliance.
  • Integrations: Advanced Python SDK and API access (+ easy export into JSON and COCO formats).
Python, JavaScript, HTML, CSS[5] Apache-2.0 License
TagLabDesktop open source interactive software system for facilitating the precise annotation of benthic species in orthophoto of the bottom of the sea.Python [6] GPL[7] [8]
VoTT (Visual Object Tagging Tool)Free and open source electron app for image annotation and labeling developed by Microsoft.TypeScript/Electron (Windows, Linux, macOS)MIT License[9] [10] [11] [12] [13]

Notes and References

  1. Web site: Intel open-sources CVAT, a toolkit for data labeling. 2019-03-05. VentureBeat. en-US. 2019-03-09.
  2. Web site: Computer Vision Annotation Tool: A Universal Approach to Data Annotation. 2019-03-01. software.intel.com. en. 2019-03-09.
  3. Web site: Computer Vision Annotation Tool (CVAT) source code on github. GitHub. 3 March 2019.
  4. Web site: LabelMe Source. GitHub. 26 January 2017.
  5. Web site: Encord Source. Documentation. 26 January 2017.
  6. Web site: TagLab Source. GitHub. 5 July 2023.
  7. Pavoni . Gaia . Corsini . Massimiliano . Ponchio . Federico . Muntoni . Alessandro . Edwards . Clinton . Pedersen . Nicole . Sandin . Stuart . Cignoni . Paolo . 2022 . TagLab: AI-assisted annotation for the fast and accurate semantic segmentation of coral reef orthoimages . Journal of Field Robotics . 39 . 3 . 246–262 . 10.1002/rob.22049 . 244648241.
  8. Costa . Bryan . Sweeney . Edward . Mendez . Arnold . October 2022 . Leveraging Artificial Intelligence to Annotate Marine Benthic Species and Habitats . Noaa Technical Memorandum Nos Nccos . 306 . 10.25923/7kgv-ba52.
  9. Web site: Free AI developer app: IBM's new tool can label objects in videos for you. Liam. Tung. ZDNet.
  10. Web site: Getting Started with VoTT Annotation Tool for Computer Vision. Jacob. Solawetz. July 27, 2020. Roboflow Blog.
  11. Web site: Best Open Source Annotation Tools for Computer Vision. www.sicara.ai.
  12. Web site: Beyond Sentiment Analysis: Object Detection with ML.NET. September 20, 2020.
  13. Web site: GitHub - microsoft/VoTT: Visual Object Tagging Tool: An electron app for building end to end Object Detection Models from Images and Videos.. November 15, 2020. GitHub.

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