HDR & SDR Color Analysis

TAG’s HDR & SDR Color Analysis equips broadcasters and content providers with advanced QC capabilities designed for today’s multi-format video environments. Supporting all major HDR standards – HLG, PQ, HDR10, HDR10+, and Dolby Vision – alongside SDR, the platform validates that every signal is delivered with the correct color space, brightness, and metadata.

Operators can deploy waveform monitors, vectorscopes, and histograms directly within the multiviewer to analyze luminance, chrominance, and color fidelity in real time. These tools reveal issues such as highlight clipping, crushed blacks, or incorrect color saturation, ensuring consistent quality across all distribution paths.

For hybrid workflows, TAG allows side-by-side HDR/SDR comparison, providing immediate visibility into tone mapping and down-conversion accuracy. Embedded test patterns and format-aware switching further simplify setup and calibration.

By integrating these QC functions within TAG’s software environment, users eliminate reliance on external scopes and manual measurements – reducing operational complexity while preserving creative intent and protecting the viewer experience.


Technical Overview

TAG’s HDR & SDR Color Analysis engine operates within the Realtime Media Platform, continuously validating both static and dynamic HDR formats across broadcast and OTT delivery chains. The system measures luminance, chrominance, saturation, and gamma transfer functions frame-by-frame, using internal waveform and vectorscope modules that maintain 8- to 10-bit precision.

Color management validation extends across Rec.709, Rec.2020, and DCI-P3 color spaces, with automatic detection of incorrect EOTF assignments or range mismatches between source and output. The platform logs and verifies AFD and HDR metadata (including MaxCLL, MaxFALL, and mastering display data) in ST 2110, ST 2022-2, and OTT formats such as HLS, DASH, and MSS.

All parameters are monitored in real time through TAG’s unified probing layer, which performs over 500 simultaneous checks on video, audio, and metadata. Detected inconsistencies are flagged in the multiviewer interface and can be exported via API 5.0, Redis, Kafka, or SNMP for integration with Grafana, Kibana, or DataMiner dashboards.

This architecture ensures pixel-accurate HDR/SDR verification without external devices, providing an automated, standards-compliant framework for color consistency and quality assurance across any workflow or format.

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