| 摘要 |
An image processing apparatus ( 800 ) partitions ( 101 ) an image into a plurality of blocks. For a selected one of these blocks, the apparatus then uses a given available range of grayscale level values to determine ( 102 ) grayscale level values for image data in the selected block to provide corresponding determined grayscale level values. At least some of these determined grayscale level values are then transformed ( 103 ) to thereby use an altered amount of the given available range of grayscale level values to thereby provide rescaled grayscale level values for the selected block. |
