Image processing device and method predicting areas in which to search for parking space delimiting lines

An image processing device comprising:

• a computer having a hardware processor configured to:
• set an area, as a first area, in which at least one delimiting line for delimiting a parking space has been detected in a first image of a plurality of images continuously captured while an imaging device that captures the images is moving;
• predict, based on the first area, a second area in which the at least one delimiting line is expected to be detected in at least one second image of the plurality of images, the at least one second image being captured later in time than the first image;
• and
• predict a third area in which a new delimiting line is expected to be detected in the at least one second image, based on an interval between a plurality of the delimiting lines that have been previously detected, the new delimiting line being different from the previously detected delimiting lines.