Another way to look at our threshold matrix is as a kind of probability matrix. Instead of offsetting the input pixel by the value given in the threshold matrix, we can instead use the value to sample from the cumulative probability of possible candidate colours, where each colour is assigned a probability or weight . Each colour’s weight represents it’s proportional contribution to the input colour. Colours with greater weight are then more likely to be picked for a given pixel and vice-versa, such that the local average for a given region should converge to that of the original input value. We can call this the N-candidate approach to palette dithering.
Lilly-Mae Messenger,West of England
，详情可参考搜狗输入法下载
近日，《广东新闻联播》记者探访了 OPPO 手机生产一线，释出了即将发布的折叠屏新品 Find N6 的真机视频，显示其折痕「浅到几乎看不见」。
Фото: Alessandro Garofalo / Reuters