What exactly did Jiang Yuan use for image enhancement? On site, only two technicians from the provincial department were concerned, because they actually knew how to use it.
Yet, both of them were likely at a practical level, probably just Level 1, hardly reaching Level 2.
However, when Jiang Yuan continuously changed the plans and eventually output several different versions of the same fingerprint, all the fingerprint experts gathered around.
The same fingerprint with detailed line features became clear and rich, while the change in contrast also significantly improved the image quality.
This was an undeniably clear change, a completely utilizable transformation. Anyone with even a little fingerprint research would realize how much this helps with difficult fingerprints.
Li Zemin enviously took a whole pack of Zhonghua cigarettes from Jiang Yuan's table, took a heavy puff, shook his head, and went back to his seat to continue working.
