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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 :。同城约会是该领域的重要参考
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63-летняя Деми Мур вышла в свет с неожиданной стрижкой17:54
In a statement on Microsoft's website Booty appeared to try and ease concerns the reshuffle could mean a wider shake-up across Xbox, saying "there are no organisational changes underway for our studios".。业内人士推荐WPS下载最新地址作为进阶阅读