Patent ID: 8913297

Claim:
A method for forming an image comprising: a data storage step of storing in a memory image data including objects, each object having information on a type and densities of colors of the object; an object extraction step of extracting each of the objects and the type of the object, each object included in the image data stored in the memory, and including first pixel values indicating the densities of the colors of the object; a matrix generation step of acquiring remaining-amount information indicating a color of a developer having a small remaining amount among colors of respective developers for image formation, and then generating, based on the remaining-amount information and the type of the object, a pixel transformation matrix for transforming the first pixel values into second pixel values indicating use amounts of the colors of the developers; a pixel value transformation step of transforming the first pixel values into the second pixel values for the respective colors of the developers based on the pixel transformation matrix; and an image formation step of forming images of the respective objects included in the image data based on the use amounts of the developers corresponding to the second pixel values transformed in the pixel value transformation step, wherein the steps are executed in the above cited order.