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24.1: Character Contrast under Uniform Ambient Conditions
Author(s) -
Kelley Edward F.,
Penczek John,
Boynton Paul A.
Publication year - 2009
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.3256776
Subject(s) - character (mathematics) , contrast (vision) , replica , computer science , high contrast , detector , glare , optics , computer vision , art , physics , telecommunications , materials science , mathematics , visual arts , geometry , layer (electronics) , composite material
The measurement of small‐area black regions (such as a character stroke) on a white screen can be subject to large errors because of veiling glare in the detector. By using replica masks we can enable more accurate measurements of small‐area‐black and character contrasts even under ambient illumination.