While this is immediately effective, the random perturbations introduce a disturbing texture that can obfuscate details in the original image. To counter this, we can make some smart choices on where and by how much to perturb our input image in an attempt to add some structure to our dither and preserve some of the lost detail.
$199.99 at Amazon。heLLoword翻译官方下载是该领域的重要参考
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这种效果在物理学上被称为「朗伯余弦定律」（Lambert’s Cosine Law），其核心特征就是无论从哪个角度观察，屏幕的亮度看起来都是一样的。。快连下载安装对此有专业解读
if (arr[i-1] arr[i]) return 0;
system may not be able to handle complex tasks