1. A method for estimating a fly screen effect of an image capture unit having a plurality of image sensors for providing an item of light intensity information, the method comprising: determining an image property of an image information item based on a plurality of light intensity information items and a plurality of parameters, one of the plurality of parameters being assigned to each of the plurality of image sensors, wherein the plurality of parameters represents a dark signal nonuniformity of the image capture unit; and ascertaining a plurality of parameter values for the plurality of parameters in which the image property is at least approximated to an ideal image property, the plurality of parameters representing the fly screen effect in a model of the image capture unit.