Patent ID: 8379153

Claim:
A video signal processing device comprising: a first color space converting section performing color space conversion on an input video signal, thereby generating a converted video signal configured of a hue signal (H), a saturation signal (S) and a value signal (V) defined in HSV color space; a first high-frequency separating section separating a high-frequency component from a luminance signal (Y) which is directly or indirectly obtained from the input video signal, thereby generating one or more high-frequency luminance signals, wherein the first high-frequency separating section separates a structure component signal which defines the contour of an image and a texture component signal which configures the details of an image, from the luminance signal, and then outputs the structure component signal or the texture component signal or each of both thereof, as the high-frequency luminance signal; a combining section performing a combining process based on either the value signal or the saturation signal, or both thereof, and the high-frequency luminance signal, thereby generating either a combined value signal or a combined saturation signal, or both thereof; and a second color space converting section performing color space conversion on a video signal, which is configured of the hue signal, the saturation signal or the combined saturation signal, and the value signal or the combined value signal, the video signal including either the combined saturation signal or the combined value signal, or both thereof, thereby generating an output video signal defined in RGB color space.