<p><a href="https://i.stack.imgur.com/xy4dK.png" rel="nofollow noreferrer">The formula in the image is depicting quantization</a></p>
<p>我想知道是否有人能帮我理解上面的公式是怎么回事?我应该先执行x=[c/s1],然后再执行s1*x吗?你知道吗</p>
<p>请帮我理解这个。你知道吗</p>
<p><a href="http://sharif.edu/~mbzadeh/Publications/PublicationFiles/NonOfficial_WhereOfficialIsPrivate/2016/ICEE2016_Azarian_JPEGghostDetection4ImageForensics_NonOfficialVersion.pdf" rel="nofollow noreferrer">The paper in question</a>。你知道吗</p>