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 :
此外值得一提的是，对洛阳钼业来说，其发展史本身有着浓厚的并购基因。2013年收购刚果（金）TFM铜钴矿，2016年拿下英美资源巴西铌磷资产，2019年完成KFM钴铜矿收购，2020年收购埃珂森（CMOC International）实现全球金属贸易布局。
，更多细节参见搜狗输入法2026
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