// 从个位到最高位，逐位排序
The Federal Trade Commission (FTC) released a statement this week allowing social media companies to collect children’s personal data without parental consent in the name of age verification, carving out an exception to the Children’s Online Privacy Protection Rule (COPPA), which decisively names children under 13 as untouchable for data collection, until now. Considering that COPPA was designed to protect sensitive data, the FTC is all but giving social media companies carte blanche to collect any information it deems necessary in the name of age verification.，推荐阅读WPS下载最新地址获取更多信息
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Why does this matter?，推荐阅读雷电模拟器官方版本下载获取更多信息
When using the probability matrix to pick from the candidate set, it is important that the candidate array be sorted in advance. Not doing so will fail to preserve the patterns distinctive of ordered dithering. A good approach is to sort the candidate colours by luminance, or the measure of a colour’s lightness4. When this is done, we effectively minimise the contrast between successive candidates in the array, making it easier to observe the pattern embedded the matrix.