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 :
BBC中文接觸到的居民面對的回覆問卷期限不一。
（二）对未成年人、老年人、患病的人、残疾人等负有监护、看护职责的人虐待被监护、看护的人的；，这一点在夫子中也有详细论述
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证监会：持续增强市场内在稳定性，讲好“股市叙事”
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