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 , 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 , 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. <EOS>