| 摘要 |
The method encodes a digital image to provide a compressed coded representation of the image. The method firstly performs a multi-level 2-D DWT transform (410) on the entire image, which is arranged in a hierarchical order (420). The sub-bands of the transform are then tiled (430) into a number of blocks. The method then embed-bitplane encodes (440) each block to visually lossless point. Afterwards, each encoded block is terminated (450) at a bitplane that minimizes image distortion based on determined distortion measures and a desired total of determined block rates. Finally, the method concatenates (460) the said terminated encoded blocks to form the coded representation.
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