1888 D. Kay v. 207 When the subject is familiar or interesting, this process of image-formation is less arduous.
1923 J. S. Huxley ii. 81 Even in the most ‘intelligent’ of birds or mammals, the power of image-formation is very probably absent, and the power of concept-formation..certainly so.
2001 R. W. Cahn vi. 220 To determine Burgers vector of a dislocation from the disappearance of its image under particular illumination conditions requires an exact knowledge of the mechanism of image formation.