1. A method, comprising: receiving a first image encoded according to a first quality level and a second image corresponding to the first image encoded according to a second quality level that is lower than the first quality level; decoding the encoded first image and a portion of the encoded second image; identifying portions of the decoded first image that correspond to the decoded portion of the second image; selecting a portion of said portions of the decoded first image based on the decoded portion of the second image; and improving the decoded portion of the second image based upon the selected portion of the decoded first image so that the improved decoded portion of the second image has a higher quality level than the second quality level.