If the A* calculation for a shortcut (in Step 3) finds it's now impassable, or if its actual detailed cost is significantly different (e.g., 20%) from the pre-calculated shortcut value:
controller.enqueue(encoder.encode(`${content}`));
。关于这个话题，Line官方版本下载提供了深入分析
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:
Blue: Person in common
Nancy Guthrie, 84, was abducted from her home near Tucson, Arizona, prompting a widespread search and appeals from her family.