Abstract: A system and method reduce or eliminate the step-contouring are provided because many types of compression algorithms introduce a step-contoured artifact for images and video with slow gradients.
Abstract: A system and method that reduce or eliminate the compression artifact of step-contouring in a piece of content having a gradient are provided because many types of compression algorithms introduce a step-contoured artifact for images and video with slow gradients. An artifact removal unit detects the start and end of a step contour, determines a gradient of the step contour and increments a pixel in certain regions to restore the gradient.
Abstract: A content compression/compression system and method are disclosed in which a pre-processing step is performed before any compression and a post-processing step is performed once a compressed piece of content is decompressed.
Abstract: A system and method for compressed domain compression improve compression gains in an encoded image, such as a Joint Photographic Experts Group (JPEG)-encoded images or encoded video, such as Motion Joint Photographic Experts Group (Motion JPEG)-encoded video, without fully decoding and re-encoding the compressed images or video.