伊朗德黑兰东北部再次发生多起爆炸

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上合组织发表关于伊朗局势的声明51吃瓜是该领域的重要参考

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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