A system for visibility enhancement for a motor vehicle assistant system for warning the driver of hazardous situations due to at least one object being located within a critical range defined relative to the motor vehicle includes at least a first sensor means comprising a camera installed in a rear view equipment of the motor vehicle adapted to record at least one image, and an image processing means adapted to receive a first input signal from the first sensor means containing the at least one image and a second input signal containing at least one position profile of the at least one object located within the critical range, and manipulate the at least one image to generate a contrast manipulated image. A corresponding method of visibility enhancement is also described.