Patent ID: 9251602
Filing Date: 2016-02-02
CPC Classification: G06K,G06T,G09G,H04N

Claim Text:
1. A pixel interpolation apparatus that performs pixel interpolation processing on an image obtained by an imaging unit, the imaging unit having color filters of four different colors arranged in a predetermined pattern, the apparatus comprising: a color saturation evaluation value obtaining unit configured to evaluate a color saturation of a predetermined image area of the image and obtain a color saturation evaluation value of the image area; a correlation degree obtaining unit configured to obtain degrees of correlation for a plurality of pairs in two directions orthogonal to each other in the image using pixel data for an area around a target pixel; a pixel interpolation method determination unit configured to determine a pixel interpolation method for the target pixel based on the color saturation evaluation value obtained by the color saturation evaluation value obtaining unit and the degree of correlation obtained by the correlation degree obtaining unit; and an interpolation unit configured to perform pixel interpolation processing on the image with the pixel interpolation method determined by the pixel interpolation method determination unit, and obtain image data in a predetermined color space, wherein, in a case where a direction having a high correlation has been detected based on the degree of correlation, the interpolation unit