1. An automatic picture-generating program to cause a computer to realize: an object memory function for storing some prepared basic forms or hand-drawn objects ( 5 ) in an element stock ( 4 ); a color tone storing function for making a pallet ( 6 ) and memorizing it in reference to a color tone information extracted from existing images; a composition function for arranging the objects ( 5 ) taken out of said element stock ( 4 ) at a proper position in a screen ( 1 ); a color painting function for taking out color from said pallet ( 6 ) and painting it on the screen ( 1 ) having the objects ( 5 ) arranged therein; a parameter memory function for taking out the objects ( 5 ) from said element stock ( 4 ) in accordance with a rule predetermined by a picture making person and arranging them, painting them in color from the pallet ( 6 ), making some parameters in reference to some random numbers generated at the time of arranging or color painting of these objects ( 5 ); and a pattern changing function for changing a selection of the objects ( 5 ) from said element stock ( 4 ) and their arrangement or color painting on the basis of the parameters read in reference to the parameter memory function.