Face mask detector(mask ,not mask, incorrect mask)

Covid-19 pandemic paused our world for a while but people know how to cope up with situations like these.
My main motive for creating this dataset is because people can use it according to their understanding and create products which would ensure that everyone remains safe.

This dataset can be used for face mask detection. I have divided it into 3 categories:
1. People wearing mask
2. People not wearing mask
3. People wearing mask but in an incorrect manner

新冠疫情一度使我们的世界暂停脚步，然而，人们深知如何应对此类困境。本数据集的创建初衷在于，人们可根据自身的理解利用它，研发出确保人人安全的产品。该数据集可用于口罩检测，并分为以下三类：
1. 配戴口罩的人员
2. 未佩戴口罩的人员
3. 配戴口罩但方式不当的人员。