Abstract: The present invention relates to a method of recording an image of a given object onto a substrate. In the method, the object is first defined as the numerical image values at its coordinate locations and then, using these numerical values for control, the final image is recorded with the help of reactive agents capable of undergoing a change of state. Each one of the state-changing reactive agents is applied onto each point of the substrate in an amount located and controlled by the numerical value of the respective point in the object image, whereupon each one of the amounts of the applied agents is subjected to a reaction causing a change of state. The invention can be implemented to record photographic images, for instance. Other applications are in the manufacture of printed-circuit boards, printing plates and the like.