Patent ID: 7046343

Claim:
A method of recognizing a region corresponding to an image storage sheet, comprising the steps of: i) obtaining a read-out image, which has been acquired by covering an image storage sheet that contains a color image with an image storage sheet pushing surface of a platen cover and reading out an image of a region on the image storage sheet pushing surface of the platen cover, the region on the image storage sheet pushing surface containing the image storage sheet, and ii) recognizing a region corresponding to the image storage sheet in the read-out image, wherein the image storage sheet pushing surface of the platen cover has a color other than colors which are ordinarily contained in image storage sheets, wherein the region corresponding to the image storage sheet is recognized by judging that a pixel in the read-out image, which pixel represents a color different from the color of the image storage sheet pushing surface of the platen cover, is a pixel falling within the region corresponding to the image storage sheet, and wherein the image storage sheet is a color photoprint.