今天早晨到白天多云转晴，山区有零星小雪，北转南风二三级，最高气温5℃。今起三天以晴到多云为主，今天早晨到白天山区出行注意交通安全；25日北风较大，风寒效应显著，注意防风防寒。新京报记者 王景曦SourcePh" style="display:none"
// Stateful transform — a generator that wraps the source
，这一点在im钱包官方下载中也有详细论述
setSpeed(currentSpeed + 0.5); // Comfortable, push faster
This time, before we perturb the input image, we take the value given by the threshold matrix and divide it by , where is the number of levels for each colour component. As a result, each pixel is perturbed just enough to cover the minimal distance between two colours in the palette. Since the entire palette is evenly distributed across colour space, we only need to modify the range of perturbation along each axis. The dithering equation then becomes: