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 :
ОАЭ задумались об атаке на Иран20:55，详情可参考体育直播
В Европе выступили с предложением по УкраинеПрофессор Дизен предложил западным лидерам лично отправиться воевать на Украину。体育直播是该领域的重要参考
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牢记“国之大者”，心系“万家灯火”。一年来，人民政协深入推进习近平新时代中国特色社会主义思想常态化、机制化研究，用党的创新理论统一思想、统一意志、统一行动，认真贯彻落实中共中央决策部署，坚持团结和民主两大主题，着力巩固团结奋斗的共同思想政治基础，紧紧围绕进一步全面深化改革、推动高质量发展等议政建言，为党和国家事业发展作出了新贡献。广大政协委员自觉投身凝心聚力、决策咨询、协商民主、国家治理第一线的具体实践，以实际行动彰显了责任担当。