To provide an image processor for making finished density of a film to be in a proper range by suppressing the change in density due to change in the sensitivity, even if generating the sensitivity change of the film caused due to moisture, and to provide an image processing method and a program.

The image processor includes a conveying means 110 capable of loading a film package, including a light-shielding member by holding a plurality of the films generating the sensitivity change caused by the moisture light-tight and for transporting the film; an exposure means 120 for forming an image as a latent image, exposing with an exposure amount calculated via LUT on the film on the basis of image data; a developing means 130 for developing and visualizing the film; and an ejection means for ejecting the film. The image processor also includes an acquiring means for acquiring loaded film package classifying information and/or production time information, and a correction control means for correcting and controlling the exposure means 120 and/or the developing means 130 on the basis of the acquired film package classification information and/or the production time information.