1. An apparatus configured for forming a pattern within an area of a photosensitive surface, comprising: means for performing a first exposure of the photosensitive surface in accordance with predetermined image data, wherein the first exposure produces a first image within the area; means for identifying an image deficiency within a region of the first image; means for adjusting the image data to compensate for the image deficiency; and means for performing a second exposure of the photosensitive surface in accordance with the adjusted image data, the second exposure producing an assist feature configured to compensate for the image deficiency.