LIGHT SYSTEM FOR MOTOR VEHICLE

A light system for a motor vehicle includes an acquisition device (3) for acquiring the scene in front of the vehicle; an image sensor; a first lighting device (1) including a light source suitable for emitting a first light beam lighting up the scene so as to increase the contrast of the images captured by the image sensor; a second lighting device (2) including a light source emitting a second light beam performing a regulatory signalling and/or lighting function in front of the vehicle; and a control unit (4) which switches on the first lighting device (1) when a first contrast value referred to as raw contrast C0 of the images captured by the image sensor is lower than a predefined threshold contrast Cs, the light source of the first lighting device (1) being configured to generate modulated lighting, the modulation of which is imperceptible to the driver of the vehicle or an external observer. 种机动车辆的灯光系统，包括：采集装置(3)，用于采集车辆前方的场景，并包括图像传感器，第照明装置(1)，其包括适于发射照亮所述场景的第光束的光源，以增加由所述图像传感器捕获的图像的对比度，第二照明装置(2)，其包括发射执行车