To provide images in which contrast of a background area and blood flow is high and flow voids are reduced.

Intensity image data are acquired by a pulse sequence PS1, threshold processing of the intensity image data is performed, multiplication of threshold-processed intensity image data A' are performed NA times, and weighting is executed with a weighting coefficient K_A. Further, phase image data B are acquired by a pulse sequence PS2, multiplication of the phase image data B are performed NB times, and weighting is executed with a weighting coefficient K_B. Thereafter, intensity image data K_A×(A')^NA and phase image data K_B×B^NB are multiplied to create composite image data C.