| 摘要 |
For reducing the false contour effect the gravity centre coding (GCC) is utilized. However, a GCC with a few number of levels introduces noise in a picture. Therefore, each picture is divided into segments and such GCC is performed only in regions, where the false contour effect is critical. This is the case for skin areas of a picture. Such areas are detected by the colour analysis (1, 2) and texture analysis (3, 4). If this analysis leads to a skin area, a specific false contour mode (5) for data processing is used. Otherwise, a standard mode (6) is employed.
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