Quick Tutorial: Cognaxon ANSI/NIST-ITL 1-2000 (NIST) Viewer Features

Cognaxon NIST Viewer Guide — Viewing ANSI/NIST-ITL 1-2000 Files

Overview

A concise guide for opening, inspecting, and extracting data from ANSI/NIST-ITL 1-2000 formatted files using the Cognaxon NIST Viewer.

Supported file types

• ANSI/NIST-ITL 1-2000 text records
• Common container formats that include NIST records (e.g., .dat, .txt)

Quick start (steps)

1. Open file
   • Launch Cognaxon NIST Viewer and select File → Open.
   • Choose the ANSI/NIST-ITL 1-2000 file (.dat/.txt).
2. Parse and validate
   • Viewer parses records automatically.
   • Check the validation panel for required fields and record consistency.
3. Navigate records
   • Use the record tree on the left to jump between transaction (type 1), fingerprint (type ⁄₁₄), iris (type 9), and image records.
4. Inspect fields
   • Select a record to view detailed fields (field IDs, lengths, values).
   • Hex and ASCII panes available for raw data inspection.
5. View images
   • Click image records to render fingerprint/face/iris images.
   • Use zoom, rotate, and contrast controls for clarity.
6. Export data
   • Export selected records or images: File → Export → choose format (CSV for fields, PNG/TIFF for images).
7. Save annotated copy
   • Save a copy with annotations or validation notes via File → Save As.

Validation checklist

• Header/record count: Matches file structure.
• Field lengths: Conform to declared lengths.
• Mandatory fields: Type-1 and relevant transaction fields present.
• Image headers: Correct resolution, compression, and size values.

Common issues & fixes

• Corrupt parse: try opening with raw/lenient mode to bypass strict validation.
• Images not rendering: verify image compression type and ensure the viewer supports it; export raw image bytes if needed.
• Missing fields: re-check file source or use export to CSV to inspect hidden/empty fields.

Short tips

• Use the hex pane for byte-level troubleshooting.
• Export CSV of fields for quick comparison or automated checks.
• Keep a copy of the original file before making edits/annotations.

Date: February 7, 2026