Patent ID: 9363493
Filing Date: 2016-06-07
CPC Classification: G06T,H04N

Claim Text:
1. An image processing apparatus, comprising: an image acquisition unit configured to acquire a mosaic image which is acquired from an image pickup element provided with color filters according to a predetermined color filter array and corresponds to the color filter array, the color filters including first filters corresponding to at least one first color, and second filters corresponding to at least two second colors having a lower contribution ratio for acquiring a luminance signal than the first color, the color filters being placed on a plurality of pixels including photo-electric conversion elements arranged in a first direction and a second direction which is perpendicular to the first direction; an operation unit configured to calculate a product-sum operation value for the first color and a product-sum operation value for each color among the second colors, based on first weighting coefficients and second weighting coefficients and on a pixel value of a pixel of the first color and a pixel value of a pixel of each color of the second colors in a local area extracted from the mosaic image and corresponding to a predetermined kernel size, the operation unit having the first weighting coefficients configured to correspond to each color among the second colors and correspond to the first color in the predetermined kernel size, and the second weighting coefficients configured to correspond to each color among the second colors, the first weighting coefficients and the second weighting coefficients being configured such that a ratio between a total sum of the first weighting coefficients and a total sum of the second weighting coefficients on pixel lines in the first direction and the second direction in the kernel size is 1:1; and an image processing unit configured to calculate a pixel value of each color of the second colors at a pixel position of each pixel to be processed in the local area, based on the pixel value of the first color at the pixel position, and the product-sum operation value for the first color and the product-sum operation value for each color among the second colors calculated by the operation unit.