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Accurate display gamma functions based on human observation
Author(s) -
Neumann Attila,
Artusi Alessandro,
Neumann László,
Zotti Georg,
Purgathofer Werner
Publication year - 2007
Publication title -
color research and application
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.393
H-Index - 62
eISSN - 1520-6378
pISSN - 0361-2317
DOI - 10.1002/col.20336
Subject(s) - display device , computer science , scale (ratio) , tone (literature) , algorithm , physics , art , literature , quantum mechanics , operating system
This article describes an accurate method to obtain the tone reproduction curve of display devices without using a measurement device. It is an improvement of an existing technique based on human observation, solving its problem of numerical instability and resulting in functions in log—log scale which correspond better to the nature of display devices. We demonstrate the efficiency of our technique on different monitor technologies, comparing it with direct measurements using a spectrophotometer. © 2007 Wiley Periodicals, Inc. Col Res Appl, 32, 310–319, 2007