When dealing with the bloody fingerprint, Lu Chuan spent even more time.
In more than an hour, he merely restored the original fingerprint, yet the lines still remained unclear, making it difficult to mark characteristic points.
Afterwards, Lu Chuan successively used gradient methods, operators, high-pass filtering, mask matching, statistical difference methods, and so on, to enhance the image, eventually obtaining a fingerprint that could allow characteristic points to be marked.
And during this whole operation, those behind Lu Chuan were already dumbfounded.
It wasn't until the fingerprint comparison success alert, prepared specifically for the fingerprint campaign, sounded, that everyone snapped back to attention.
Another match!
Moreover, it was another murder case!
Sun Miao, who was just smoking with Lu Chuan outside the building, was a detective from the High-speed Rail New District Criminal Investigation Team.
