test-pattern

FAN (fan-out-oriented) ATPG (Automatic Test Pattern Generation) and Fault Simulation command line tool

Interlaced Test Patterns, for testing deinterlacers and FFmpeg's idet (heuristics interlacing detection algorithm)

Gsync Freesync Flicker Test, a display diagnostic utility designed to measure and evaluate luminance fluctuations during variable refresh rate gaming sessions. It provides a seamless user experience to help hardware enthusiasts detect panel brightness instability, test monitor adaptive sync performance, and calibrate display settings efficiently.

Eight distinguishable 1080p30 NDI presenter test sources with audio identification and custom images.

Single html file (by claude) for display calibration: RGB range, brightness/black level, grayscale/gamma, color & saturation, sharpness & overscan, reference image.

Broadcast test-pattern generator for the browser. EBU bars, PLUGE, reference cards, frame-accurate WebRTC sync. One signal master from browser preview to 10-bit SDI. Desktop builds under Releases.

Offline test-pattern generator for LED screens and projection. Windows / macOS, PNG, NDI and Resolume XML.

Test Pattern images HDTV 1080p Import of https://arachnoid.com/HDTVTestPattern/index.html

Windows .NET 10 test-card generator with 1080p/4K NDI and UDP outputs, synchronized motion and a 1 kHz test tone.

PRACTEL PT-430 Color bar Generator - EPROM Code generator from reprogramming the ID overlay

XC tech — DCI cinema alignment & 7.1 audio test patterns (ready-to-ingest DCPs)

Web-based LCD display test pattern generator for panel debug, pixel checking, and display characterization

C64 Test Pattern + Demonstration

Generate machine-readable A/V sync test videos and measure audio/video drift frame by frame

Browser-based test pattern generator for LED video walls — cabinet/port screen maps, pixel 1:1, colour bars, low-grey, motion tests. Single self-contained HTML file.