To provide an image controller capable of performing exposure with the features of three or more colors when a plurality of features included in image data are outputted.

An output control value calculating means D uses an output control value of a density table, regarding the features, stored in a density table storage means C as an output control value of one color among basic colors of cyan, magenta, yellow, and black. The output control value of the feature is regarded as an output control value of a basic color and a density table of the newly generated basic color is used to generate a color collection corresponding to the feature (step S05). This color collection is added to the image data and then the resulting data are sent to a DCP generating device 4 together with an output indication signal (step S12). At this time, color information on the feature used as color information on the basic color is sent as color information on the basic color to the DCP generating device 4A.