Patent ID: 8538186

Claim:
An image processing apparatus comprising: a component separating unit which separates an original image signal comprising a plurality of color components into a plurality of components including a first component which is a skeleton component including a flat component and an edge component of an image, and a second component which is obtained from a residual of the original image signal after the first component is removed, both the first and second components comprise the plurality of color components; a signal level acquiring unit which acquires either one of a signal level of a luminance component of the first component and a signal level of a signal obtained by interpolating a G component of the first component; a parameter setting unit which sets a noise reduction processing parameter corresponding to each of the color components of the second component based on either one of the signal level of the luminance component of the first component and the signal level of the signal obtained by interpolating the G component of the first component; and a noise reducing unit which reduces noise in each of the color components of the second component using the noise reduction processing parameter of the corresponding color component.