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 :
"It's important to be comfortable with the fact that you are not going to have any privacy because people are right in your face. Then they go from the freedom they have at home, to being told by a station leader about the rules and regulations. A small number of people struggle with that."
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По словам эксперта, ученые из Южной Кореи впервые продемонстрировали прямую связь между распространенной оральной бактерией Streptococcus mutans (возбудителем кариеса) и механизмами развития Паркинсона. Речь идет о новом исследовании Поханского университета науки и технологий (POSTECH), результаты которого были опубликованы в январе 2026 года.