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"One day I just woke up and after a year-and-a-half on the streets I thought, 'I need to do something'," he says, remembering how he approached a local charity for support.
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Due to this more measured approach, error-diffusion dithering is even better at preserving details and can produce a more organic looking final image. However, the algorithm itself is inherently serial and not easily parallelised. Additionally, the propagation of error can cause small discrepancies in one part of the image to cascade into other distant areas. This is very obvious during animation, where pixels will appear to jitter between frames. It also makes files harder to compress.
I dropped to the floor and couldn't move - spiking can happen anywhere