Appearance inspection system, image processing device, imaging device, and inspection method

An appearance inspection system that performs appearance inspection by causing an imaging device to image a target when the imaging device arrives at each of a plurality of imaging positions set for the target while moving a relative position of the imaging device with respect to the target, the appearance inspection system comprising:

• a setting part that sets a route passing through the plurality of imaging positions in order;
• a movement mechanism that moves the relative position of the imaging device with respect to the target along the route;
• and
• a control part that controls an imaging condition of the imaging device,
• wherein the setting part sets the route so that a first time necessary for the movement mechanism to move the imaging device from a first imaging position to a second imaging position among the plurality of imaging positions is longer than a second time necessary for a process of changing a first imaging condition corresponding to the first imaging position to a second imaging condition corresponding to the second imaging position by the control part, and
• wherein the control part starts the process of changing the first imaging condition to the second imaging condition earlier by the second time or more than a scheduled time at which the imaging device arrives at the second imaging position when the movement mechanism moves the imaging device from the first imaging position to the second imaging position.