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.
冲突在杜耀豪回到酒店后试图联系大舅时达到高潮。大舅在电话中言辞激烈地拒绝沟通，甚至威胁说再打来就要报警告其“谋杀”，随即挂断。。关于这个话题，同城约会提供了深入分析
"The key to Twig's longevity is our passion for the brand and the community itself. The people who come in week after week, and stayed loyal, are the reason we've been successful."，详情可参考同城约会
// 易错点4：仅处理栈非空的情况，忽略栈空的情况 → 栈空时res[i]会是undefined