BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a diagram of a network configuration of a system including a digital MFP.
FIG. 2 is a block diagram of a hardware configuration of the digital MFP.
FIG. 3 is a block diagram of an image correction circuit of a color image and black and white (B/W) image signal processor.
FIG. 4 is an example of a test chart used for creating a gamma correction table.
FIG. 5 is an example of a display of a service menu.
FIG. 6 is a flowchart of processes carried out when creating a gamma correction table.
FIG. 7 is an example of contents of a display when executing color gamma correction.
FIG. 8 is a graph of gamma characteristics calculated from target brightness of a subject range of each patch and scanning brightness of the subject range.
FIG. 9 is a graph of interleaved gamma characteristics, target gamma characteristics, and a gamma correction table.