De-blocking DCT compressed images
| Author(s) : | Rensheng Horng Lbert J. Ahumada, |
| Publisher : | N/A |
| Publication Date : | 1994 |
| ISSN : | N/A |
| Abstract : | mage compression based on quantizing the image in the discrete cosine transform (DCT) domain can c generate blocky artifacts in the output image. It is possible to reduce these artifacts and RMS error by orrecting DCT domain measures of block edginess and image roughness, while restricting the DCT coefficient values to values that would have been quantized to those of the compressed image., |