| 摘要 |
Image pixels are sampled (24) and held to produce a box car wave (28) representative of the image data. Wave height differences are bridged by linear interpolation, (30, 31) and frequency enhancement (36) imposed at the bridge junctures. The modified image wave is thresholded (37) and sampled at a multiple of the original frequency to provide image pixels (49) comprised of both original image pixels (10) and one or more interpolated image pixels (12) therebetween. Intermediate image lines (L1-1) are interpolated by comparing the image pixels, some of which may be interpolated, on a pixel by pixel or multiple pixel basis, one line pair (L1, L2) at a time.
|
