https://blog.wongcw.com/2020/12/30/%e4%b8%89%e6%98%9f%e8%87%aa%e9%81%a9%e6%87%89hdr10%e8%aa%bf%e7%af%80%e5%8a%9f%e8%83%bd%e5%b0%87%e8%80%83%e6%85%ae%e7%92%b0%e5%a2%83%e5%85%89%e5%9b%a0%e7%b4%a0/