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A strategy for automatic television colur‐balance correction involving a floating white
Author(s) -
Pearson D. E.,
Ray A. K.
Publication year - 1978
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.5080030308
Subject(s) - range (aeronautics) , float (project management) , computer science , color balance , white (mutation) , balance (ability) , point (geometry) , artificial intelligence , computer vision , mathematics , materials science , engineering , chemistry , image processing , psychology , biochemistry , image (mathematics) , geometry , neuroscience , marine engineering , color image , gene , composite material
Experimental comparisons are reported of sensor‐derived and picture‐derived techniques for automatic colurbalance correction in colour television. Neither technique was found to ensure point mapping of scene neutrals into display neutrals at 6500 K in all circumstances. An alternative floating‐white system was investigated; quality ratings of this system showed that it performed well over a central range of colour temperatures. The results suggest that fully automatic correctors might beneficially follow a strategy of allowing the system white to float over a limited central range, applying correction graducally outside this range.