Image processing apparatus and image processing method for performing gamma correction

摘要

An image processing apparatus carrying out a gamma correction for input data includes polygonal line approximating apparatus for carrying out the gamma correction by a polygonal line approximation, a look-up table partially storing gamma correction data corresponding to the input data, and a correction deciding portion and a selector which select the output of one of the polygonal line approximating apparatus and the look-up table corresponding to the input data.