The media regulator said 8579 LLC's sites did not have "highly effective" methods to check UK visitors were over 18 and prevent children accessing the content.
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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.
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