"Moreover, a computer monitor throws off its own light, whereas paper merely reflects light coming from another source. What the viewer perceives is different, so after a photo is edited it has to be printed out and compared against the original slide provided by the NPM."
「再者，螢幕本身是會發光的透光體，而紙張是會折射光線的反光體，兩者有視覺感受的落差，因此每次修圖之後，都得列印出來加以確認，跟故宮提供的照片互相比對。」