2 For points outside the convex hull, an acceptable solution is to find the closest point on the surface and determine the barycentric coordinates for that point instead. ↑
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12月9日，《儒藏》数字化项目启动仪式现场。受访者供图
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.
而過去12個月的事件更讓局勢急遽惡化。