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Intuitively, it’s not too difficult to understand why this is the case. Remember that error-diffusion works in response to the relationship between the input value and the quantised value. In other words, the colour palette is already factored in during the dithering process. On the other hand, ordered dithering is completely agnostic to the colour palette being used. Images are perturbed the same way every time, regardless of the given palette.
，这一点在爱思助手下载最新版本中也有详细论述
Maggie姐略微有点不耐烦。傍晚6点不到，水车屋还没开始营业，她必须和其他客人一样等在门外。作为老客，她并不满意这样的待遇，尤其是她发现那些翻看菜牌、赶着饭点来的客人不过是要去楼下两层打发他们的晚餐，立刻就把她从当年的盛况里拉了回来。这几年，夜总会生意不景气，水车屋也跟着走下坡路，早就在招揽中低消费的客人，原先的老客也不见踪影。
30元一颗黑草莓、200元一斤手指柠檬、800元一个粉菠萝……春节期间，许多消费者发现，一批身价不菲的水果悄然现身电商平台。令人惊讶的是，不少商品已经显示“缺货”，说明不少人愿意为这份“新奇”买单。