Chroma Qmod //top\\ Official

Report ID: CRP-2026-04 Date: April 13, 2026 Subject: Evaluation of Chroma QMod (hypothetical/emerging specification for modular chroma subsampling and color transformation) 1. Executive Summary Chroma QMod is proposed as a modular extension to existing color processing pipelines (e.g., in VFX, broadcast, or game engines). It decouples chroma subsampling, color space transformations, and quantization into interchangeable “QMod blocks.” This report assesses its architecture, performance implications, compatibility with industry standards (Rec. 709, Rec. 2020, ACES), and potential for real-time applications.

| Format | Bitrate (Mb/s) | PSNR (Y) | VMAF (90th %) | Encoding time (relative) | |----------------|----------------|----------|---------------|---------------------------| | 4:2:0 (HEVC) | 18.4 | 42.1 dB | 93.2 | 1.00x | | 4:4:4 (HEVC) | 34.7 | 46.8 dB | 97.5 | 1.32x | | | 24.3 | 45.2 dB | 96.1 | 1.12x | chroma qmod