An information outputting method for a displaying apparatus comprises: an image acquiring step of acquiring image data; an identifying step of identifying a first image characteristic of a first display image which is displayed using a first display characteristic of a first displaying apparatus and is based on the image data, and of identifying a second image characteristic of a second display image which is displayed using a second display characteristic of a second displaying apparatus different from the first displaying apparatus and is based on the image data; and an information outputting step of outputting notification information based on a difference between the first image characteristic and the second image characteristic. Thus, it becomes possible to enable a user to grasp that a difference in image quality may occur among the plurality of display apparatuses respectively having different characteristics.