To provide a method for characteristic adjustment of variation in manufacturing in a camera and imperfections in its operating environment to allow images captured by the camera to be corrected with respect to the defects.

The method for adjusting the characteristic of a camera includes: (a) illuminating a field of view of optical elements under a controlled situation; (b) exposing multiple images onto an image sensor under the controlled condition; (c) extracting parameter values of a model for an image provided on the image sensor from the multiple images; and (d) correcting images to be captured subsequently by the camera using the parameter values.