Another way to approach dithering is to analyse the input image in order to make informed decisions about how best to perturb pixel values prior to quantisation. Error-diffusion dithering does this by sequentially taking the quantisation error for the current pixel (the difference between the input value and the quantised value) and distributing it to surrounding pixels in variable proportions according to a diffusion kernel . The result is that input pixel values are perturbed just enough to compensate for the error introduced by previous pixels.
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Точка кипенияКомпании во всем мире борются с выгоранием сотрудников. Как с этой проблемой поступают в России?12 апреля 2021
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Sentiment towards BP and Shell has strengthened significantly off the back of oil price spikes. But it’s a complex picture. Neither company has production in Iran. But BP’s significant production in Iraq and Abu Dhabi risks being bottlenecked through disruption to the Strait of Hormuz. For Shell the same applies to its LNG facilities in Qatar and the Emirates. If a moderate sustainable regime is established in Iran, there is the potential for substantial derisking, and for prices to be rebased downwards. If sanctions are removed, it also opens the door for investment into Iranian oil fields.