1. A method of operating an image processing system, the method comprising: identifying object pixels associated with an object of interest in a scene; identifying additional pixels to associate with the object of interest; and performing an operation based on a depth of the object in the scene on target pixels comprised of the object pixels and the additional pixels to change a quality of the object of interest, wherein performing the operation on the target pixels comprises: processing individual lines of the scene beginning with an edge of the scene nearest a vertical vanishing point of the scene to identify a current pixel of the target pixels; and checking a next pixel of the target pixels against the current pixel to determine if the current pixel should be removed, wherein the next pixel comprises a pixel adjacent to the current pixel as indicated by a direction towards the vertical vanishing point.