Dithering in its simplest form can be understood by observing what happens when we quantise an image with and without modifying the source by random perturbation. In the examples below, a gradient of 256 grey levels is quantised to just black and white. Note how the dithered gradient is able to simulate a smooth transition from start to end.
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Running posttrans scripts... done
更值得关注的是技术迭代风险。机器人更新换代速度较快,新款产品一旦性能更好、价格更低,旧设备的租赁吸引力会迅速下降。设备折旧不仅来自物理损耗,更来自技术代差。