An imaging apparatus comprising: an image pickup device comprising a plurality of photoelectric conversion elements arranged in a horizontal direction and a vertical 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 basic array pattern formed from a square array pattern, the basic array pattern disposed with a first filter corresponding to a first color that contributes most to obtaining a brightness signal and second filters respectively corresponding to 2 or more second colors other than the first color, with the basic array pattern disposed repeating in the horizontal direction and the vertical direction, and with the first filter placed such that in the basic array pattern there are portions where there are more than 2 of the first filters adjacent to each other in at least two different of the horizontal direction, the vertical direction and the diagonal direction; the imaging apparatus being characterised in that it further comprises: a division means adapted to divide image data output from the image pickup device into line image data running along a predetermined direction for each pattern line of the basic array pattern, when the basic array pattern has been divided into pattern lines running along the predetermined direction; a storage means that is adapted to store for each pattern line of the basic array pattern line correction data configured by a plurality of correction data corresponding to each filter on the pattern line; and a correction means adapted to read from the storage means line correction data corresponding to the line image data divided by the division means, and to use the read line correction data to correct the line image data for each pattern line. an image pickup device comprising a plurality of photoelectric conversion elements arranged in a horizontal direction and a vertical 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 basic array pattern formed from a square array pattern, the basic array pattern disposed with a first filter corresponding to a first color that contributes most to obtaining a brightness signal and second filters respectively corresponding to 2 or more second colors other than the first color, with the basic array pattern disposed repeating in the horizontal direction and the vertical direction, and with the first filter placed such that in the basic array pattern there are portions where there are more than 2 of the first filters adjacent to each other in at least two different of the horizontal direction, the vertical direction and the diagonal direction; the imaging apparatus being characterised in that it further comprises: a division means adapted to divide image data output from the image pickup device into line image data running along a predetermined direction for each pattern line of the basic array pattern, when the basic array pattern has been divided into pattern lines running along the predetermined direction; a storage means that is adapted to store for each pattern line of the basic array pattern line correction data configured by a plurality of correction data corresponding to each filter on the pattern line; and a correction means adapted to read from the storage means line correction data corresponding to the line image data divided by the division means, and to use the read line correction data to correct the line image data for each pattern line.