Image processing system and image processing method

An image processing method comprising:

• a first image processing process executed by a first image processing apparatus, the first image processing process including a first obtaining process of obtaining, as data of a first input image, data of an image obtained through image capturing of an object by a first image capturing device configured to capture an image of a region including at least part of a specific region, a first process of generating data of a first silhouette image illustrating a region in which the object exists in the first input image by inputting the data of the first input image into a learned model, and a first outputting process of outputting the data of the first silhouette image, wherein the first image processing apparatus is not configured to calculate a difference between an input image and a background image for generating the first silhouette image;
• and
• a second image processing process executed by a second image processing apparatus, the second image processing process including a second obtaining process of obtaining, as data of a second input image, data of an image obtained through image capturing of the object by a second image capturing device different from the first image capturing device, a second generating process of generating data of a second silhouette image illustrating a region in which the object exists in a second input image by calculating a difference between the second input image and a background image that is an image obtained through image capturing by a second image capturing device in a state in which the object does not exist in a region subjected to image capturing by the second image capturing device, and a second outputting process of outputting the data of the second silhouette image, wherein the second image processing apparatus is not configured to use a learned model for generating the second silhouette image.