1. An apparatus comprising: a receiver configured to receive a video teleconferencing image, wherein the video teleconferencing image comprises an original background and at least one foreground; and a processor coupled to the receiver, wherein the processor is configured to: determine an estimated boundary between the foreground and the original background, wherein the boundary comprises a plurality of pixels; determine a drawing area to obscure segmentation errors associated with the boundary, wherein determining the drawing area comprises: establishing a contour following flow field comprising a directional neighborhood around each boundary pixel to indicate directions following a contour of the boundary; estimating a spread of the segmentation errors in directions indicated by the contour following flow field; and deriving the drawing area to encompass the segmentation errors utilizing the contour following flow field and the estimated segmentation error spread; overlay the boundary with the drawing area; and replace the original background of the video teleconferencing image with a new background.