ImageAnnotationTool

Web application for team based uploading, categorizing and annotating images.

Team

• panierka - a lot of backend with a bit of frontend, annotating tool, rendering, overall app architecture, database/ORM administration, object modelling, custom components creation, managing, front-back configuration, testing
• joanbod - a lot of frontend, UI/UX design, stylesheets, basically all the forms and modals, front-back configuration
• TR1PL3D0T - CRUD backend services, unit testing, JSON serialization, EXIF extraction, COCO modelling, front-back configuration
• TomaszBarnas - html/css help, logo and graphic elements, text content creation, testing

Scope

The main functionality of the application is to provide:

• tools needed for online teamwork
  • user accounts
  • teams
  • projects (jobs linked by common theme and annotation classes)
  • jobs (user to user tasks with given set of images to be annotated)
  • user roles in both teams and projects
• tools for user-friendly annotation
  • two types of shape creation: rectangular and free-form
  • 7 unique tools for vertex modifications
  • undo feature
  • storing the annotations inbetween user sessions
  • smart image/canvas scaling, that doesn't ruin the annotations
  • class frequency visualization
  • extracting EXIF data from files
  • ability to export the data into COCO .json file

Technology

• C#, ASP.NET Core, Blazor
• Entity Framework Core (MS SQL Server)
• Bootstrap
• SCSS