An imaging apparatus, comprising: an image pickup device comprising a plurality of photoelectric conversion elements arrayed in a predetermined first direction and a predetermined second direction intersecting with the first direction; a color filter that is provided above a plurality of pixels configured by the plurality of photoelectric conversion elements, the color filter having a repeatedly disposed basic array pattern that includes a first filter corresponding to a first color that contributes most to obtaining a brightness signal, and second filters respectively corresponding to two or more second colors (R, B) other than the first color, said repeatedly disposed basic array pattern forming a first original image array; a drive means (22, 24) configured to drive the image pickup device such that pixel data of pixels placed in the first original image array at a set cycle in at least one direction out of the first direction and second direction is read to give a thinned second image array in relation to the first original image array; characterized by a color image correction means configured to perform color mixing correction for each of the pixel data of pixels placed in the second image array, wherein the color image correction means is configured to correct pixel data of a subject pixel for color mixing correction based on pixel data of a pixel in the second image array • that has the same color as a pixel in adjacent contact to the subject pixel in the first original image array and • that has shortest distance from the pixel in adjacent contact to the subject pixel in the first original image array. an image pickup device comprising a plurality of photoelectric conversion elements arrayed in a predetermined first direction and a predetermined second direction intersecting with the first direction; a color filter that is provided above a plurality of pixels configured by the plurality of photoelectric conversion elements, the color filter having a repeatedly disposed basic array pattern that includes a first filter corresponding to a first color that contributes most to obtaining a brightness signal, and second filters respectively corresponding to two or more second colors (R, B) other than the first color, said repeatedly disposed basic array pattern forming a first original image array; a drive means (22, 24) configured to drive the image pickup device such that pixel data of pixels placed in the first original image array at a set cycle in at least one direction out of the first direction and second direction is read to give a thinned second image array in relation to the first original image array; a color image correction means configured to perform color mixing correction for each of the pixel data of pixels placed in the second image array, wherein the color image correction means is configured to correct pixel data of a subject pixel for color mixing correction based on pixel data of a pixel in the second image array • that has the same color as a pixel in adjacent contact to the subject pixel in the first original image array and • that has shortest distance from the pixel in adjacent contact to the subject pixel in the first original image array. • that has the same color as a pixel in adjacent contact to the subject pixel in the first original image array and • that has shortest distance from the pixel in adjacent contact to the subject pixel in the first original image array.