Image forming apparatus, method of controlling the same, and non-transitory computer-readable medium

A method of controlling an image forming apparatus, the method comprising:

• a counting step of counting the number of pixels at each tone level in a halftone image corresponding to an input image;
• a determination step of determining a halftone region in the halftone image;
• an acquisition step of acquiring tone characteristic information of a density at the time of outputting from the image forming apparatus;
• a correction step of obtaining a density in a region to be formed by using the developing material from the number of pixels at each of the tone levels and information of the halftone region and correcting the density in accordance with the tone characteristic information;
• and
• a prediction step of predicting a consumption amount of the developing material by using the density corrected in the correction step.

A non-transitory computer-readable medium storing a program for causing a computer to function as

• a counting unit configured to count the number of pixels at each tone level in a halftone image corresponding to an input image,
• a determination unit configured to determine a halftone region in the halftone image,
• an acquisition unit configured to acquire tone characteristic information of a density at the time of outputting from the image forming apparatus,
• a correction unit configured to obtain a density in a region to be formed by using a developing material from the number of pixels at each of the tone levels and information of the halftone region and correct the density in accordance with the tone characteristic information, and
• a prediction unit configured to predict a consumption amount of the developing material by using the density corrected by the correction unit.