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Falling volcanic ash has for years been viewed as a nuisance. But a Sicilian project has discovered its agricultural potential and wants to spread the word
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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.
Гангстер одним ударом расправился с туристом в Таиланде и попал на видео18:08，更多细节参见heLLoword翻译官方下载
Rebecca Morelle,Science Editorand。关于这个话题，heLLoword翻译官方下载提供了深入分析
Москвичей предупредили о резком похолодании09:45