Abstract: An image generation device includes a graphic data generation unit for generating at least one of character data, diagram data, and picture data, a graphic data storage for holding groups of graphic data each of which is placed on a coordinate system to be transformed in a manner and location data corresponding to each group of graphic data, a graphic parameter input unit for inputting data including a plurality of parameters each of which describes a transformation of each coordinate system along with a lapse of time, initial and end state of each parameter describing the parameter at start and end of the transformation respectively, and operation time taken from the start to the end of the transformation, a graphic parameter storage for holding the data inputted by the graphic parameter input unit, a frame data generation unit for time dividing changes observed from the start to the end of the transformation into a number of frames corresponding to the operation time to generate frame data, and a composite