Premium
Optimizing subpixel rendering using a perceptual metric
Author(s) -
Farrell Joyce,
Eldar Shalomi,
Larson Kevin,
Matskewich Tanya,
Wandell Brian
Publication year - 2011
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/jsid19.8.513
Subject(s) - subpixel rendering , computer science , rendering (computer graphics) , computer vision , artificial intelligence , perception , metric (unit) , computer graphics (images) , filter (signal processing) , pixel , operations management , economics , neuroscience , biology
— ClearType is a subpixel‐rendering method designed to improve the perceived quality of text. The method renders text at subpixel resolution and then applies a one‐dimensional symmetric mean‐preserving filter to reduce color artifacts. This paper describes a computational method and experimental tests to assess user preferences for different filter parameters. The computational method uses a physical display simulation and a perceptual metric that includes a model of human spatial and chromatic sensitivity. The method predicts experimentally measured preferences for filters for a range of characters, fonts, and displays.