杜拜:中東樞紐在伊朗攻擊下陷入困境,機場碼頭和著名酒店現場直擊
Москва внимательно следит за ситуацией между Пакистаном и Афганистаном, добавил Песков.
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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.