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Add technique descriptions module and default sample image feature
- Created /Descriptions folder with 10 comprehensive technique guides (ELA, Metadata, Histogram, Noise/Ghost, Quantization, CMFD, PRNU, Frequency, Deepfake, Resampling) - Added technique description buttons in sidebar for user education - Implemented load_description() helper function with error handling - Enhanced FFT and DCT analysis with human-readable scoring (0-100 scale) - Added authenticity scoring, risk levels, and plain-language interpretations - Implemented default sample image preloading on app startup - Users can now analyze images immediately without uploading - Fixed sample image path to sampleImg.jpeg - Updated all deprecated Streamlit parameters (use_column_width, use_container_width) - Added comprehensive documentation (summaries, user guides, checklists)
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‎.pre-commit-config.yaml‎

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# Pre-commit Configuration
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# Install pre-commit hooks with: pre-commit install
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repos:
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# Black - Code formatting
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- repo: https://github.com/psf/black
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rev: 23.12.1
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hooks:
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- id: black
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language_version: python3.9
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args: [--line-length=100]
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# isort - Import sorting
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- repo: https://github.com/PyCQA/isort
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rev: 5.13.2
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hooks:
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- id: isort
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args: [--profile=black, --line-length=100]
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# Flake8 - Linting
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- repo: https://github.com/PyCQA/flake8
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rev: 6.1.0
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hooks:
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- id: flake8
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args: [--max-line-length=100, --extend-ignore=E203, W503]
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# mypy - Static type checking
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- repo: https://github.com/pre-commit/mirrors-mypy
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rev: v1.7.1
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hooks:
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- id: mypy
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additional_dependencies: [types-all]
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args: [--ignore-missing-imports, --no-strict-optional]
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# General hooks
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- repo: https://github.com/pre-commit/pre-commit-hooks
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rev: v4.5.0
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hooks:
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- id: trailing-whitespace
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- id: end-of-file-fixer
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- id: check-yaml
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- id: check-added-large-files
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args: [--maxkb=5000]
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- id: check-json
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- id: check-toml
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- id: check-merge-conflict
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- id: debug-statements
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- id: mixed-line-ending
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# Security - Bandit
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- repo: https://github.com/PyCQA/bandit
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rev: 1.7.5
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hooks:
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- id: bandit
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args: [-c, pyproject.toml]
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additional_dependencies: ["bandit[toml]"]
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# Configuration
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default_language_version:
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python: python3.9
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# Skip specific hooks for certain files
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exclude: |
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(?x)^(
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venv/.*|
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temp/.*|
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__pycache__/.*|
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\.git/.*
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)$

‎CHANGELOG.md‎

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# Changelog
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All notable changes to Veritas Forensic Image Analysis Toolkit will be documented in this file.
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The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
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and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
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---
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## [Unreleased]
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### Planned Features
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- Batch processing mode for multiple images
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- Report generation (PDF/HTML export)
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- Command-line interface (CLI)
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- API server mode
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- Machine learning-based forgery detection
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- Real-time video frame analysis
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- Advanced CMFD with SIFT/SURF
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- Blockchain-based image authentication
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---
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## [1.0.0] - 2025-12-XX
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### Added
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- **11 Forensic Analysis Techniques**:
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- Error Level Analysis (ELA) with multi-quality comparison
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- Comprehensive EXIF/metadata extraction
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- RGB histogram analysis with statistics
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- Noise map analysis for inconsistency detection
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- JPEG ghost detection
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- Quantization table forensics
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- Copy-Move Forgery Detection (CMFD)
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- PRNU (Photo Response Non-Uniformity) analysis
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- Frequency domain analysis (FFT/DCT)
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- Deepfake detection with GAN fingerprinting
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- Resampling and interpolation detection
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- **Web-Based Interface**:
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- Streamlit-powered interactive GUI
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- 12-tab navigation system
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- Real-time parameter adjustment
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- Image upload and preview
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- Dark theme with neon green accents
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- **Comprehensive Documentation**:
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- README.md with quick start guide
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- API documentation (docs/API.md)
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- Forensic techniques guide (docs/TECHNIQUES.md)
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- Deployment guide (docs/DEPLOYMENT.md)
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- Contributing guidelines (CONTRIBUTING.md)
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- **Testing Infrastructure**:
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- Unit tests for ELA module (11 test cases)
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- Unit tests for metadata module (9 test cases)
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- Integration tests (5 test suites, 15+ test cases)
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- Performance tests for different image sizes
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- Format compatibility tests (JPEG, PNG, grayscale, RGBA)
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- Pytest configuration with coverage reporting
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- Pre-commit hooks for code quality
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- **Development Tools**:
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- requirements-dev.txt with testing/linting tools
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- pytest.ini with coverage configuration
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- .pre-commit-config.yaml for automated checks
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- Black, isort, flake8, mypy integration
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- **Deployment Support**:
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- Streamlit Cloud deployment guide
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- Heroku deployment with Procfile
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- Docker support with Dockerfile and docker-compose.yml
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- AWS EC2 and Elastic Beanstalk instructions
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### Technical Specifications
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- **Python Version**: 3.9+
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- **Core Dependencies**:
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- Streamlit 1.28.1
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- Pillow 10.1.0
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- OpenCV 4.8.1.78
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- SciPy 1.11.4
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- scikit-image 0.22.0
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- NumPy 1.24.3
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- Matplotlib 3.8.2
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- Plotly 5.18.0
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### Design Choices
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- **Streamlit over PyQt6**: Web-based approach for better accessibility, easier deployment, and faster development
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- **In-memory Processing**: BytesIO for JPEG operations to avoid disk I/O overhead
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- **Modular Architecture**: Separate modules for each technique enable easy extension
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- **Dark Theme**: Professional forensic tool aesthetic with high visibility
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- **Comprehensive Error Handling**: Graceful degradation when features unavailable
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---
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## [0.9.0] - 2025-11-XX (Beta)
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### Added
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- Initial project structure
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- Core ELA implementation (basic version)
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- Metadata extraction (basic EXIF)
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- Basic Streamlit interface
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- 5 initial analysis techniques
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### Changed
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- Framework selection from PyQt6 to Streamlit
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---
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## Version History
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- **v1.0.0**: Full production release with 11 techniques, comprehensive docs, testing
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- **v0.9.0**: Beta release with core features
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- **v0.1.0**: Initial prototype
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---
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## Upgrade Guide
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### From 0.9.0 to 1.0.0
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**Breaking Changes**: None (backward compatible)
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**New Features Available**:
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- 6 additional analysis techniques
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- Multi-quality ELA comparison
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- Integration tests
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- Deployment guides
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**Migration Steps**:
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1. Pull latest code: `git pull origin main`
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2. Update dependencies: `pip install -r requirements.txt --upgrade`
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3. No configuration changes needed
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---
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## Contributors
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- **CodeRafay** - Initial work and primary development
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See [CONTRIBUTING.md](CONTRIBUTING.md) for how to contribute.
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---
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## License
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This project is licensed under the BSD 3-Clause License - see [LICENSE](LICENSE) file for details.
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---
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**Note**: For security vulnerabilities, please email [rafayadeel1999@gmail.com] instead of using the issue tracker.

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