Instead of perturbing each pixel in the input image at random, we can choose to dither by a predetermined amount depending on the pixel’s position in the image. This can be achieved using a threshold map; a small, fixed-size matrix where each entry tells us the amount by which to perturb the input value , producing the dithered value . This matrix is tiled across the input image and sampled for every pixel during the dithering process. The following describes a dithering function for a 4×4 matrix given the pixel raster coordinates :
美國國土安全部去年底發聲明指，特朗普政府執政期間，有超過250萬名非法移民離開美國，超過60.5萬人是透過執法行動而被遣返，其餘則是自行離境，並稱這是「破紀錄」的一年。
数据显示，在去年4月中国实施出口管制后的八个月内，中国对美出口的钇类产品仅17吨，而此前八个月相关出口量为333吨，降幅极为显著。，详情可参考WPS下载最新地址
（三）属于仲裁机构的受理范围。，这一点在heLLoword翻译官方下载中也有详细论述
The Nintendo Switch editions will contain exclusive post-game content on the Sevii Islands: introducing both an additional storyline revealed once you defeat the Pokémon League and plenty of extra Pokémon to collect.，这一点在safew官方版本下载中也有详细论述
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