https://blog.csdn.net/weixin_40511249/article/details/121700779
https://baike.baidu.com/item/图像尺寸/10315059
https://baike.baidu.com/item/分辨率/213523
https://blog.csdn.net/jayjaydream/article/details/123081268
https://wall.alphacoders.com/by_resolution.php?w=7680&h=4320&lang=Chinese
