In order to prevent a narrowing of the expression width while respecting the intent of a user who specified an imaging condition, this image acquisition device (1) comprises: an imaging unit (2) that acquires image data; a setting storage unit (4) that stores a plurality of parameter sets each consisting of combinations of a plurality of parameters including an imaging condition and a development condition; a change acquisition unit (5) that acquires a change, from a reference parameter, in one of the parameters relating to the imaging condition, due to the user, at the time image data is acquired by the imaging unit (2); a parameter extraction unit (12) that excludes parameter sets which include a change in a changed parameter and extracts the remaining parameter sets when a parameter change is acquired by the change acquisition unit (5); and a development unit that develops the image data acquired by the imaging unit (2) using the parameter sets extracted by the parameter extraction unit (12).
