Gamma correction of digital video data by calculating linearly interpolated gamma correction values
作者： Michael A. Kutner
DOI:
关键词: Linear function (calculus) 、 Value (computer science) 、 Lookup table 、 Variable (mathematics) 、 Computer graphics (images) 、 Signal 、 Gamma correction 、 Algorithm 、 Computer science 、 Digital video 、 Function (mathematics)
摘要: An apparatus, including a lookup table memory, for gamma correcting digital video signal based on the assumption that small gamma, correction is linear function so input value x d to be added can calculated as of an opertor selected variable according formulae: d=10·0·(x-x.sup.1.10) or d=10·9·(x-x.sup..90 ).
lens.org 参考文章(6)
Hitoshi Iida, Pay-Shin King, Video system having an adjustable digital gamma correction for contrast enhancement ,(1981)
Robert A. Dischert, Controlled ram signal processor ,(1981)
Ronald D. Malcolm, Mirza R. Beg, Julius Perl, Programmable image-transformation system ,(1986)
Eiichi Asai, Hiroshi Tanaka, Nobuaki Higashi, Gradation correction curve creating method and apparatus ,(1983)
Takayuki Ozaki, Gray scale transformation circuit ,(1985)
Masaki Isogai, Yukio Nakagawa, Phototelegraphic transmission apparatus ,(1985)