A driver assistance system mountable in a motor vehicle, the system including: a camera; a processor configured to receive image data from the camera, wherein the processor includes a first driver assistance module that uses near infra-red illumination in an image and a second driver assistance module that uses parts of an image that do not have the near infra-red illumination; wherein the camera includes a rolling shutter sensor and is configured to capture said image data row by row during a frame period and to read the image data into a plurality of image frames wherein said camera is configured to provide to the processor said image frames (204,206), wherein the plurality of image frames is partitioned into first and second image frames comprising a first image frame for use by the first driver assistance module and a second image frame for use by the second driver assistance module, wherein the camera captures at least a portion of the first image frame at the same time as at least a portion of the second image frame; a near infra-red illuminator configured to provide a near infra-red illumination cone in the field of view of the camera, wherein the near infra-red illumination oscillates with an illumination period, wherein the near infra-red illumination is in a part of the rows of an image of the first image frame, wherein a part of the rows of an image of the second image frame does not have said near infrared illumination; and a synchronization mechanism configured to synchronize said illumination period to said frame period to time said near infra-red illumination to be in said part of the rows of the image of said first image frame, to avoid said near infra-red illumination in said part of the rows of the image of said second image frame, and to vary the percentage of near infra-red intensity, in the rows of said images. a camera; a processor configured to receive image data from the camera, wherein the processor includes a first driver assistance module that uses near infra-red illumination in an image and a second driver assistance module that uses parts of an image that do not have the near infra-red illumination; wherein the camera includes a rolling shutter sensor and is configured to capture said image data row by row during a frame period and to read the image data into a plurality of image frames wherein said camera is configured to provide to the processor said image frames (204,206), wherein the plurality of image frames is partitioned into first and second image frames comprising a first image frame for use by the first driver assistance module and a second image frame for use by the second driver assistance module, wherein the camera captures at least a portion of the first image frame at the same time as at least a portion of the second image frame; a near infra-red illuminator configured to provide a near infra-red illumination cone in the field of view of the camera, wherein the near infra-red illumination oscillates with an illumination period, wherein the near infra-red illumination is in a part of the rows of an image of the first image frame, wherein a part of the rows of an image of the second image frame does not have said near infrared illumination; and a synchronization mechanism configured to synchronize said illumination period to said frame period to time said near infra-red illumination to be in said part of the rows of the image of said first image frame, to avoid said near infra-red illumination in said part of the rows of the image of said second image frame, and to vary the percentage of near infra-red intensity, in the rows of said images.