Apparatus and method for generating wide colour gamut signal in image capturing device

摘要

Provided are a method and apparatus for generating a wide color gamut signal in an image capturing device, which can simplify a calculation process and minimize color distortion therein. The apparatus includes a gamma-correction unit (220) gamma-correcting a picked-up image signal by using gamma curve information predetermined according to an output format; an interpolation unit (230) interpolating the gamma-corrected image signal as a linear image signal which is to be expressed on a display; a color gamut conversion unit (240) converting the interpolated image signal into a standard RGB signal by using a color conversion matrix; a color expansion unit (250) expanding the standard RGB signal to a wide color gamut signal by using a gamut conversion matrix; and a signal correction unit (260) correcting the wide color gamut signal by a predetermined correction gain value.