Viewer and editor for ANSI/NIST-ITL biometric files

NIST Studio is a desktop application for viewing, editing and comparing ANSI/NIST-ITL files. It provides a three-panel interface with record tree navigation, field editing, and image visualization. Built with PyQt5 and the nistitl library.

Related project: AFIS Console — operational AFIS report analysis and export tool in the YBDN Biometrics ecosystem.

• Three-panel interface: Record tree, field table, and biometric image viewer with drag & drop support
• Record support: Type-2 (text), Type-4/13/14/15 (fingerprints), Type-10/17 (photos), Type-7/8/16/19/20 (other images)
• Side-by-side comparison: Load two sources (NIST, image, PDF) for visual comparison
  • Typed annotations (MATCH/EXCLUSION/MINUTIA/CUSTOM) with numbered markers
  • Overlay mode with adjustable transparency, blink comparator
  • Calibrated grid/ruler, horizontal/vertical flip
  • Distance measurement (pixels and mm when calibrated)
  • Linked views: synchronized zoom/pan, rotation per image
  • DPI calibration: two-point calibration + resample to target DPI
  • Image enhancements: brightness, contrast, gamma, inversion
  • Export annotated comparison as JPG
• Signa Multiple export: Automated transformation (delete 2.215, set 2.217=11707)
• PDF export: Decadactylary sheet (A4) from available fingerprint images
• Image codecs: WSQ (via NBIS dwsq) and JPEG2000 (via imagecodecs)
• Offline: Fully local operation, no backend required

• Windows 10+, macOS 10.14+, or Linux (Ubuntu 20.04+)
• Python 3.8+ with pip

git clone https://github.com/ybdn/myNIST.git
cd myNIST
python3 -m venv venv
source venv/bin/activate  # Windows: venv\Scripts\activate
pip install -r requirements.txt

make setup  # Creates venv, installs dependencies and dev tools

# Run from source
python -m mynist
# or
./run.sh

# Run built executable
./dist/mynist

Open a .nist, .nst, .eft, .an2 or .int file via File > Open or drag and drop.

# Build executable
./build.sh
# or
make build

# Ubuntu system install
sudo ./install_ubuntu.sh

# Uninstall
sudo ./uninstall_ubuntu.sh

pytest              # Run tests
make test           # Verbose output
make test-coverage  # With coverage report
make lint           # flake8
make format         # black formatter

myNIST/
├── mynist/              # Application source code
│   ├── controllers/     # Business logic (file, export, PDF)
│   ├── models/          # Data model (NISTFile wrapper)
│   ├── views/           # UI components (PyQt5)
│   ├── utils/           # Utilities (config, codecs, logging)
│   └── resources/       # Icons and assets
├── tests/               # Unit tests with fixtures
├── docs/                # Documentation
├── build.sh             # Build script
├── run.sh               # Development launcher
└── requirements.txt     # Python dependencies

Proprietary License - All rights reserved. See LICENSE.

Author: Yoann Baudrin Version: 0.1.0