Door controller and non-transitory storage medium

A non-transitory storage medium installed on a computer provided in a door controller for executing opening/closing control of a door provided in an opening based on image data in which there is captured a predetermined imaging range of an external area relative to the opening, wherein the non-transitory storage medium causes the computer to execute the following processing based on an installed computer program:

• analyze the image data according to time series,
• extract one or more moving objects which are moving toward the opening from within a predetermined area included in the imaging range,
• evaluate movement amounts of the moving objects toward the opening,
• restrict a closing operation of the door when it is determined that a moving object which is moving by a predetermined amount or more is present based on evaluation results of the movement amounts, and
• execute a closing operation of the door at a preset predetermined timing when it is determined that a moving object which is moving by a predetermined amount or more is not present and a moving object which will reach the opening before the predetermined timing is not present based on the evaluation results of the movement amounts.