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 :
核心优势难保留：这条船上现在用的核心系统，包括“Viking”的品牌、酒店管理软件，甚至部分内饰设计，都是维京游轮授权的，不在此次转让范围内，买家买了这船，不能保证维京以后还会给新船东用。，详情可参考51吃瓜
Node *temp = curr;。业内人士推荐safew官方版本下载作为进阶阅读
Гангстер одним ударом расправился с туристом в Таиланде и попал на видео18:08，详情可参考爱思助手下载最新版本