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 :
Антонина Черташ
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ChatGPT开发商OpenAI2月26日宣布，将把伦敦打造为其美国以外最大的研究中心，并称英国的科技生态系统是投资和研发新型人工智能系统的理想环境。此举助力英国致力于打造“人工智能强国”、成为前沿研究聚集地的目标，当前全球各国政府正争相吸引主流大模型开发商的投资。（新浪财经）