Title :
Analog implementation of gamma-correction for CMOS cameras
Author :
Rovatti, R. ; Franchi, E. ; Manaresi, N. ; Bellini, A. ; Tartagni, M.
Author_Institution :
DEIS, Bologna Univ., Italy
Abstract :
In this paper an analog synthesizer of nonlinear functions is applied to integrated color processing in CMOS cameras. For reproducing images on a display with desired contrast and color correction, a nonlinear distortion of the signal associated with pixels of different colors is needed. The adoption of a design flow for the implementation of nonlinear analog functions allows the integration of this processing on the same chip containing the sensor before the final A/D conversion
Keywords :
CMOS image sensors; analogue processing circuits; analogue-digital conversion; fuzzy logic; image colour analysis; CMOS cameras; analog synthesizer; color correction; contrast; design flow; final A/D conversion; gamma-correction; integrated color processing; nonlinear analog functions; nonlinear distortion; CMOS image sensors; CMOS technology; Cameras; Circuits; Color; Computer architecture; Displays; Switches; Synthesizers; Voltage;
Conference_Titel :
Electronics, Circuits and Systems, 1998 IEEE International Conference on
Conference_Location :
Lisboa
Print_ISBN :
0-7803-5008-1
DOI :
10.1109/ICECS.1998.813353
