1. A computerized encoding method comprising: jointly transforming, by a computer, a set of pixels into high-pass data using an orthonormal transform, the set of pixels including a plurality of reference pixels and a plurality of predicted pixels, wherein the plurality of reference pixels are reused in a joint transformation of another set of pixels, the another set of pixels including the plurality of reference pixels and at least one additional plurality of predicted pixels; and generating low-pass data using the plurality of reference pixels and the high-pass data.