A method for preprocessing camera raw data of an image sensor of a camera. The method includes a step of reading in, a step of setting, a step of reducing, and a step of outputting. In the step of reading in, a raw data signal is read in, which encompasses camera raw data detected by the image sensor at a detection point in time. In the step of setting, a preprocessing algorithm for reducing the resolution of the camera raw data is set, using at least one setting signal. In the step of reducing, the resolution of the camera raw data is reduced, using the preprocessing algorithm set in the step of setting, to obtain a preprocessed camera signal which represents a preprocessed camera image. In the step of outputting, the preprocessed camera signal is output to an image processing unit.