Twig's Ben Hartwig says the company is now eyeing expansion
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Dig leader Peter Crawley said he had a gut feeling about the site before the excavation began.
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.