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，这一点在im钱包官方下载中也有详细论述
"Another problem with today's robots is they rapidly run out of batteries," adds Jenny Read, programme director in robot dexterity at Aria, a technology funding agency. "Electric motors are terrible at that."。关于这个话题，同城约会提供了深入分析
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 :