| 摘要 |
<p>Sequences of frames are encoded by first subdividing each frame into a plurality of blocks, each corresponding to at least one other block within at least one adjacent frame, to create a group of corresponding of blocks (51). A luminance component of each pixel within each group is averaged to generate a mean luminance value for each group (52). An upper color value for each group is determined, as well as a lower color value (53). A one-bit value assigned to each pixel within each block is set to a first binary level when the luminance component of an associated pixel value is greater than the corresponding mean luminance (56). Otherwise the one-bit value is set to a second binary value (55). Thus, sets of adjacent frames may be represented in encoded form by a one-bit per pixel matrix, with an upper color value and a lower color value for each group of blocks.</p> |
