Luminance-Preserving Colour Conversion

With the advent of new television standards introducing UHD and HDR, backward compatibility with older devices becomes an issue. — We propose a method for converting footage produced in BT.2100 colorimetry to a BT.709 compliant representation. The process preserves each pixel's luminance and is fully reversible. — Technically, our approach determines the exact polygonal shape of the effective BT.2100 and BT.709 gamuts at a given luminance and maps colours from one to the other by desaturating them.

Published

2016-10

Content type

Original Research

Keywords

Ultra-high-definition TV, colour conversion, BT.2100, BT.2020, BT.709, High Dynamic Range

DOI

10.5594/M001708

ISBN

978-1-61482-957-7