Hisense’s Four-Primary TV: Colour Gamut and Visiual Health
How the added cyan LED affects gamut coverage and its potential impact on human circadian rhythm
Colour
HDR Image Formats (V): Understanding Headroom in Gainmap
A seemingly redundant parameter: The role and correct writing method of Alternate HDR Headroom in the ISO 21496-1 standard
A First Look at Mobile Phone Log: OPPO Log as an Example
Maybe it’s just a selling point mentioned at a launch event, but surely no one takes it seriously?
Geekon Monitor Unboxing: High-end Aspiration, Workshop Reality
A bold attempt at a super-high-spec product from a mysterious little workshop, only to suspect I’ve bought a monitor that has passed through eighteen hands.
Decoding an Adaptive HDR Tone Mapping Method (Wang, 2025)
Breaking down an innovative tone mapping algorithm and exploring how it balances luminance compression with detail preservation.
MacAdam's Optimal Colours: The Boundary of Physical Colours
A mathematical proof: what does the reflectance of a ‘perfect pigment’ look like?
HDR Image Formats (IV): ISO 21496-1 the Unified Gainmap
Say goodbye to messy proprietary formats — ISO 21496-1 brings a unified specification for Gainmap HDR images
A Quick Analysis of the X2D II 100C File Format
Finished the UltraHDR article yesterday, only to have the X2D II release today and use it.
Decoding HDR Image Formats (I): Basic Concepts of Gainmap
Achieving HDR while ensuring excellent backward compatibility by packaging SDR and HDR images within a single file.
CAT16: Why Are Two Steps Needed to Ensure Reversibility?
Details in colour adaptation models similar to CAT16: one forward and one reverse, achieving reversibility and transference