FirstFT: the day's biggest stories
Then $75 per month. Complete digital access to quality FT journalism on any device. Cancel anytime during your trial.
，这一点在WPS官方版本下载中也有详细论述
encrypting documents and other files
New rules could make for faster play at the World Cup
The blue noise or ‘void-and-cluster’ dither pattern avoids directional artefacts while retaining the optimal qualities of the Bayer pattern. The Bayer matrix can in fact be derived from the void-and-cluster generation algorithm itself[8].