An empirical-parametric gamma calibration algorithm

TL;DR

This paper introduces an efficient empirical-parametric method for calibrating gamma correction curves on displays, using minimal measurements and standard least-squares fitting, demonstrated on LCD screens.

Contribution

It presents a novel, lightweight calibration algorithm that combines empirical modeling with parametric fitting to reduce measurement effort.

Findings

Accurately calibrates gamma curves with few measurements

Uses standard least-squares algorithms for fitting

Demonstrates effectiveness on LCD displays

Abstract

A method to determine the gamma correction curves for displays is presented. An empirical model is first constructed from exhaustive measurements of a few representative units. The model parameters for the remaining units are then fitted using only a few measurements. The method uses standard least-squares algorithms and is computationally light. Experimental results for a small sample of LCD displays are presented.