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Instead of perturbing each pixel in the input image at random, we can choose to dither by a predetermined amount depending on the pixel’s position in the image. This can be achieved using a threshold map; a small, fixed-size matrix where each entry tells us the amount by which to perturb the input value , producing the dithered value . This matrix is tiled across the input image and sampled for every pixel during the dithering process. The following describes a dithering function for a 4×4 matrix given the pixel raster coordinates :。业内人士推荐WPS下载最新地址作为进阶阅读
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The Evo isn’t perfect, though. The companion app isn’t as feature-rich as competing software, the menu system can be confusing to navigate, and the camera’s internal storage maxes out at 45 images. Still, these are relatively minor drawbacks for a stylish, portable camera that makes it easy to quickly capture and print quality shots.。关于这个话题，快连下载-Letsvpn下载提供了深入分析
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