English | 中文
DimCam 尺标相机
尺寸标注相机 - Dimension Marking Camera
An Open-Source Android Photo Annotation Tool
DimensionCam is an ad-free, open-source Android application that allows you to capture or select photos, add precise measurement annotations between points, and export beautifully annotated images.
Key Features
- Photo Management - Take photos or select from gallery, view thumbnails in a grid, non-destructive deletion
- Precise Annotation - Place start/end points, input distance values with multiple units (mm, cm, dm, m)
- Customizable Styles - Choose from 3 endpoint styles: T-Arrow-T, T-T, or Arrow-Arrow
- Rich Color Options - Select from 6 colors: Red, Green, Blue, White, Black, Purple
- Flexible Editing - Drag control points, adjust line width, undo/redo operations
- Multi-language - Full support for English and Chinese (中文)
- Export - Save high-quality annotated images to device storage
- Clean Architecture - Built with MVVM pattern, Room database, and modern Android libraries
Technical Highlights
- 📱 Minimum Android API: 24 (Android 7.0)
- 🏗️ Architecture: MVVM with LiveData and Repository pattern
- 💾 Database: Room persistence library
- 🖼️ Image Loading: Glide
- 🔍 Photo Viewing: PhotoView with zoom support
- 📝 Language: Java with XML layouts
Screenshots
How to Use
- Launch the app and navigate to the Photos tab
- Add a photo using the camera or select from gallery
- Switch to the Annotation tab
- Tap to place start and end points on the image
- Enter the distance measurement and customize the style
- Use the Export button to save your annotated image
Contributing
Contributions are welcome! Please fork the repository,create a feature branch, and submit a pull request.
Before submitting, run ./gradlew lint to ensure code quality.