Patent ID: 8982248
Filing Date: 2015-03-17
Classification: H04N

Abstract:
1. An image processing apparatus comprising: an aberration amount generation unit that calculates an aberration amount of a different color component signal with reference to a position of a color component signal of a criterion color having pixels larger in number than a different color included in image data, based on a luminance value of a pixel signal included in the image data; a correction unit that generates a color difference signal from the different color component signal and the color component signal of the criterion color and corrects chromatic aberration of the color component signal of the different color present between pixels of the criterion color using the color difference signal based on the aberration amount, wherein the correction unit includes a criterion color interpolation processing unit that interpolates the color component signal of the criterion color at a position of a pixel of a first or second color present between the pixels of the criterion color; a criterion up-sampling processing unit that performs up-sampling on the interpolated first or second color component signal of the criterion color based on the aberration amount of a first or second color component signal calculated by the aberration amount generation unit; a color difference generation unit that generates a first or second color difference signal by obtaining a difference between the first or second color component signal and the interpolated first or second color component signal of the criterion color subjected to the up-sampling; a first color difference up sampling processing unit performs up-sampling on the first color difference signal based on the aberration amount of the first color component signal; a second color difference up-sampling processing unit performs up-sampling on the second color difference signal based on the aberration amount of the second color component signal; a first corrected color component signal generation unit that generates the corrected color component signal in the pixel of the first color by adding the interpolated first color component signal of the criterion color and the first color difference signal subjected to the up-sampling; and a second corrected color component signal generation unit that generates the corrected color component signal in the pixel of the second color by adding the interpolated second color component signal of the criterion color and the second color difference signal subjected the up-sampling.