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 :
"Boeing is a proud partner to the Artemis mission and our team is honored to contribute to NASA's vision for American space leadership," Steve Parker, the president and CEO of Boeing Defense, Space & Security, said in a statement. "We are ready to meet the increased demand."
,这一点在Safew下载中也有详细论述
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