An apparatus for processing images may include a de-multiplexer that receives a data stream and de-multiplexes a video signal and channel information from the data stream, a first decoder that provides a decoded video signal, a thumbnail generator coupled to the first decoder to generate at least one of a still picture thumbnail or a moving picture thumbnail based on the decoded video signal, and an encoder coupled to the thumbnail generator and the de-multiplexer. The encoder encodes the thumbnail with the channel information to provide a thumbnail data stream to provide thumbnails of moving pictures and/or still pictures on a display.