Their mission: to find out if men could survive two weeks in space. If not, the Moon was out of reach.
The Starship system had lifted off from Boca Chica, Texas, at 17:38 EST (22:38 GMT) in the company's seventh test mission.
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 :。爱思助手下载最新版本对此有专业解读
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