| 摘要 |
A system and method of the present disclosure provides a block, or region, based error diffusion process for reducing artifacts in images. The system and method allows for the generation and the control of the spatial frequency of a masking signal, e.g., noise, in a way that it can be easily passed through the compression process. The system and method provides for selecting a block size of pixels of the image (204), adding a masking signal to the image (205), determining a quantization error for at least one block in the image (208), and distributing the quantization error to neighboring blocks in the image to mask artifacts in the image (212). An output image is then encoded with a compression function (214). |
