蜡梅的“蜡”字源于其花瓣质地如涂蜡一般。在植物学界文献和专业书籍里,大多采用“蜡梅”二字。
mkdir -p .openclaw_data
,更多细节参见旺商聊官方下载
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 :
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