Image processing device, image processing method and storage medium

An image processing method executed by a computer, the image processing method comprising:

• acquiring a captured image acquired by photographing an inspection target by a photographing unit provided in an endoscope;
• generating a plurality of mask images which indicate candidate areas of an attention part in the captured image by different levels of granularity;
• and
• identifying the attention part based on the plurality of the mask images,
• wherein the plurality of mask images are images each indicating a reliability of being the attention part for each of grids corresponding to a plurality of pixels in the captured image, and
• wherein numbers of the grids determined according to the levels of granularity are different among the plurality of the mask images.

A non-transitory computer readable storage medium storing a program executed by a computer, the program causing the computer to:

• acquire a captured image acquired by photographing an inspection target by a photographing unit provided in an endoscope;
• generate a plurality of mask images which indicate candidate areas of an attention part in the captured image by different levels of granularity;
• and
• identify the attention part based on the plurality of the mask images,
• wherein the plurality of mask images are images each indicating a reliability of being the attention part for each of grids corresponding to a plurality of pixels in the captured image, and
• wherein numbers of the grids determined according to the levels of granularity are different among the plurality of the mask images.