1. A method of determining an image layout to be performed by an information processing apparatus, the method comprising: inputting material image candidates that are images including moving image frames and/or still images shot by an imaging device; detecting a shooting condition of the imaging device at analysis times, the analysis times being shooting times of all or part of the material image candidates or times around the shooting times; detecting a zoom factor of the imaging device at the time of shooting each material image candidate; based on the shooting condition of the imaging device detected for respective analysis times, determining, among the material image candidates, composite image materials serving as materials for generating each composite image, and a still image material serving as a material for a still image associated with the composite image, one of the material image candidates being determined as the still image material at the time when the zoom factor is above a predetermined threshold; generating the composite image based on the composite image materials; and determining an arrangement of the still image material and the composite image based on the shooting condition at the analysis time corresponding to the still image material, wherein the still image material is captured by a camera with a single visual field.