| 摘要 |
<p>An apparatus is provided for upscaling image data from a first resolution to a second resolution, the data representing a 2x2 block of pixels. The apparatus receives colour component and location data for each of the blocks of pixels (generated from the original image), and derives at least first and second angles of rotation (which can be 0°, 90°, 180° or 270°) from the location data. Using the angles of rotation, the apparatus outputs a series of modulation values that are calculated from the colour component data:
i) a first series of values is calculated using the first angle rotation and the colour data;
ii) a second series of values is calculated using the first series of values and both the first and second angles of rotation. From this, the apparatus assigns the second series of values to the pixels in dependence on the second angle of rotation. Further angles of rotation and values can be generated to further enhance the end image.</p> |
