| 摘要 |
PURPOSE: To relieve visual deterioration by calculating correlation data between plural interpolation reference picture elements and applying weighting to picture element data of each interpolation reference picture element accordingly. CONSTITUTION: Interpolation reference inter-picture-element object pixels (x, y), (x+1, y), (x+1, y+1) and (x, y+1) surrounding an interpolation object pixel (x', y') are selected and let a distance from the pixel (x', y') to the pixel (x, y) on the X and Y axes be respectivelyα,β. Number of combinations of the interpolation reference pixels opposite to each other with the pixel (x', y') inbetween is 6. However, the combinations between the pixels (x, y) and (x+1, y), between the pixels (x+1, y) and (x+1, y+1) and the pixels (x+1,y+1) and (x, y+1) provide a distance 0 on the X and Y axes and receive a high effect of the distance, then the interpolation calculation on the distance is used and no weighting is conducted. In the other combinations, weighting is calculated depending on the correlation.
|
