| 摘要 |
PROBLEM TO BE SOLVED: To provide a piecewise linear processing device which applies different amplification rates according to a general environment and a low luminance environment where much noise exists. SOLUTION: The piecewise linear processing device includes: a knee point storing unit configured to store a user's default setting value and low luminance setting value; a luminance judging unit configured to judge a noisy environment to output a current luminance information signal and a maximum luminance information signal; an adaptive knee point supply unit configured to receive the default setting value, the low luminance setting value, the current luminance information signal, and the maximum luminance information signal to supply an adjusted adaptive knee point according to a degree of noise; and a piecewise linear processing unit configured to apply a section amplification rate to input data on the basis of a region corresponding to the adaptive knee point and to output output data. COPYRIGHT: (C)2008,JPO&INPIT |
