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Make images render brighter than white by abusing Rec.2100 PQ profiles

Make images render brighter than white by abusing Rec.2100 PQ profiles

by nimrodyar·Jul 11, 2026·3 points·0 comments
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AI Analysis

●●●BangerWizardryBig Brain

Rec.2100 PQ profiles in JPEGs survive LinkedIn's re-encoding to make images out-glow the UI.

Strengths
  • •Per-pixel luminance masking keeps colors accurate while only whites hit 1000+ nits.
  • •ICC profile embedding via APP2 JPEG segment survives platform re-encoding pipelines.
  • •Works with standard 8-bit JPEGs—no 10-bit encoding or video containers required.
Weaknesses
  • •Only works on HDR-capable displays (MacBook Pro, iPhone, OLED TVs).
  • •Core technique documented by Tom Nick—this is a polished implementation, not the discovery.
Target Audience

Frontend developers, designers, content creators

Similar To

Ultra HDR · HDR gain maps

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