An ultrasound diagnosis apparatus includes: a transmitting and receiving unit that transmits and receives an ultrasound wave to and from a subject a first image data generating unit that generates first image data based on a first parameter, from a reception signal received by the transmitting and receiving unit a second image data generating unit that generates second image data having an image taking region of which at least a part overlaps with that of the first image data and being based on a second parameter that is different from the first parameter, from a reception signal received by the transmitting and receiving unit and an image processing unit that calculates a feature amount from at least such a part of the second image data that overlaps with the first image data and corrects the overlapping part of the first image data on a basis of the calculated feature amount.