1. A method for enhancing an image having a plurality of pixels, the method comprising: determining a dominant contour direction for a current pixel with a contour enhancement unit; enhancing a contour of the current pixel by a contour enhancement factor along the dominant contour direction with a contour enhancement unit; calculating a secondary contour direction for the current pixel with a contour enhancement unit; and wherein the enhancing a contour of the current pixel by a contour enhancement factor along the dominant contour direction is performed only when the magnitude of the dominant contour direction minus the magnitude of the secondary contour direction is greater than a contour enhancement threshold.