VII.5

PROGRESSIVE IMAGE REFINEMENT VIA GRIDDED SAMPLING

Steve Hollasch,     Kubota Pacific Computer, Inc., Santa Clara, California

Publisher Summary

The most common method employed to display a raster image is to sample the image data along scanlines usually from left to right and top to bottom. When the pixel-painting process is fast enough, the particular pixel ordering chosen is unimportant as far as the viewer is concerned. However, if the pixel sampling is slow or if the resolution is sufficiently high, the time to display the image can take minutes, hours, or days. This chapter discusses the display of images by sampling at progressively finer grids over the entire image area. The advantage over scanline sampling is that for the equivalent ...

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