National Forensic Doctor

Jiang Yuan watched the video with the members of the Duck Team for a while and became familiar with the new surveillance system.

I have to say that watching videos with a few men, and watching sports videos that are mainly men, and there is no ball, the rest is pure boredom.

Zhuang Wei operated the software to track the whereabouts of a criminal suspect from the core area of ​​the county until he got into the car. The whole process...Jiang Yuan looked extremely bored.

I have to say that as I gradually take on more and more cases, cases that follow too many rules consume a lot of willpower.

Jiang Yuan looked at it and couldn't help but take out his mobile phone and start taking a look.

After not looking at it for a long time, hundreds of messages have been posted in many groups.

"Shannan Fingerprint Exchange Group" also has a red @symbol.

Jiang Yuandian took a look inside and saw that he was actually Li Zemin.

As a comrade who has fought together in the provincial fingerprint battle, Li Zemin can be said to be a breath of fresh air among provincial document experts.

He and Jiang Yuan smoked Chinese together, traveled through major cases selected across the province, and killed indiscriminately. From the first to the fifteenth day of junior high school, the screams never stopped.

Jiang Yuan opened the "Shannan Fingerprint Exchange Group" with emotion.

Shannan Li is far away. Please help me take a look at this fingerprint. It was taken from the velvet cloth of the trunk by a stupid kid. I highly suspect it is a criminal with a criminal record. 】

Changyang City - Shuidong District - Trace Inspection He Guohua: [Brother Jiang is too busy. In the past two months, he has solved five or six murder cases in succession, and in the meantime, he can compare fingerprints. 】

Shannan Li Zemin: [I always pay ten for one. Please ask Jiang Yuan to get a fingerprint, and I will do ten chores for him later. 】

Changyang City-Shuidong District-Trace Inspection He Guohua: [Brother Li, you have passed it. 】

Shannan Li Zemin: [However, I remember to count. Just like the Jiang Yuan Huazi I smoked back then, I wrote down how many of them I had. If I still can’t finish them, I’ll ask my son to return them. 】

Shannan Zhu Huanguang: [@Changyang City - Shuidong District - Trace Inspection He Guohua, you are much older than Jiang Yuan, right? Can you call me brother? 】

Changyang City - Shuidong District - Trace Inspection He Guohua: [Brother Zhu, your criticism is right. I can't mess up my generation just because I'm in the group. We in Changyang City are all called Jiang Ye now. Mr. Jiang, I'm sorry, I will ignore you. "

Provincial Department—Fingerprint Post—Yang Ling: [Call me Jiang Shen. Mr. Jiang was overheard by the security and was easily attacked. 】

Jiang Yuan read a hundred more messages with satisfaction. When they started to change topics, he forwarded the fingerprint sent by Li Zemin to him.

If some things are too difficult to obtain, it will be difficult to enjoy the glory and happiness it brings.

On the contrary, if you get it easily, the happiness in your heart will be stronger.

It's like demolishing households, it's like demolishing the second generation.

Just like Jiang Yuan.

"Brother Zhuang, give me a computer to use. One with better performance." Jiang Yuan held the fingerprint in his hand and felt that the imaging office was very suitable for processing fingerprints.

There is also a need to process images here, and the newly equipped computers are all top-of-the-line computers from two years ago.

Zhuang Wei immediately let Jiang Yuan out, entered the power-on password, and said with a smile: "The password is a warning signal."

"Okay. Thank you." Jiang Yuan was not surprised at all. It can be said that it is too common for police officers to use police numbers as passwords. Many police officers only got rid of this bad habit after their wives checked their mobile phones.

A simple and incomplete fingerprint does not require any special software. Jiang Yuan put it in and processed it with photoshop first.

Of course, photoshop actually has nothing to do with simplicity. This thing works well and can handle any kind of photos.

The so-called ps originally refers to processing with photoshop. However, photos that may have required a master to deal with in the past have been made fool-proof by various software, so that even those who do not understand technology and have no money can still photoshop a bunch of beautiful photos.

However, the functionality of photoshop has never diminished, and it is not just for processing fat, thin, black and white faces.

field, its application scope is still wide, but many people are not good at using it.

There are too many and too powerful functions that most image processors do not have access to, and the difficulty has increased because of this. Therefore, many people will choose some software that plagiarizes the functions of Photoshop as a replacement. In addition, the price of genuine photoshop is also one of the problems.

"I'm processing fingerprints. A friend just needs it." Jiang Yuan explained to Zhuang Wei and started operating on the computer.

Zhuang Wei looked at it with sadness.

Just like what I had seen before, when Jiang Yuan performed image enhancement, it was difficult for him to understand it. This kind of - well, Zhuang Wei suddenly found that he seemed to understand Jiang Yuan's operation.

In fact, the enhancement of fingerprint images is originally simpler than the enhancement of video images.

It’s not just a matter of complexity of the image, but also a matter of familiarity.

Zhuang Wei has also been a policeman for more than ten years. He has seen thousands of fingerprints. He has a very clear and rich experience in his mind about what a fingerprint should look like.

Therefore, watching Jiang Yuan do image enhancement, he may not have an intuitive feeling. Watching Jiang Yuan do fingerprints, he suddenly understood the direction and goal of Jiang Yuan's operation.

Once you know where the destination is, and then look at the process, the operating space will be easy to understand.

What's more, Jiang Yuan didn't use particularly complicated methods.

He just needs to clean up the fingerprints.

He even said that he didn't need to process the entire fingerprint, but just made a part of it more beautiful and clear, which was enough.

With his lv3+lv4 fingerprint analysis method, even if there are only one-third of the basically clear fingerprints, Jiang Yuan can get enough information - provided that the compared fingerprints are complete and clear. But this time, the target fingerprint is an ex-convict, so there is no need to worry too much in this regard.

Therefore, super fingerprint analysis and super image enhancement complement each other.

Anyone who has used Photoshop knows that this software often makes sacrifices in image processing. If only a small part of the image is processed, the difficulty will be reduced.

As a result, it was easier for Jiang Yuan to get a small piece of very clear fingerprints.

Consecutive pieces of fingerprints are actually more advantageous in terms of fingerprint comparison.

Zhuang Wei easily saw Jiang Yuan's strategy. At this time, when he further watched Jiang Yuan's image enhancement, he slowly took it in.

Speaking of which, Zhuang Wei's foundation is not bad. He studied related majors in college more than ten years ago. Moreover, as we all know, knowledge related to digital image processing such as Fourier transform and discrete functions has not changed much in the past ten years.

In other words, as long as a person is diligent and studious, strives to make progress, even if he is a little stupid, as long as he can read discrete functions, play with power transformations, and master piecewise linear transformation functions relatively proficiently, it will cost him several times more than others. If you take the time to learn mathematics, you will not be easily eliminated by society.

Just like Zhuang Wei, in the past ten years, he has not really spent much time studying, but this is mainly because he has lost the learning environment.

Most people are like this. After they start working, they start to output endlessly because of pressure, responsibility, and desire...

When everything is judged by quantity, 3000, 6000, 9000 or 12000 are only meaningful at the moment.

Jiang Yuan opened a way for Zhuang Wei.

While Jiang Yuan was doing image enhancement, Zhuang Wei's mind suddenly recalled a lot of knowledge that he had forgotten. He even began to feel that being the squadron leader of the picture scout squadron was not interesting.

Even if he is the captain of the scout team - of course, if he can really do it, as the first-generation four-eyed duck, he still has to do his part.

"That's almost it." Jiang Yuan stopped.

Zhuang Wei's mind was also clear: "Ah, are you done?"

"Well, I'll compare the fingerprints. It may need to be corrected, but that's basically it." Jiang Yuan actually knew that Zhuang Wei was stealing from him, so he didn't care, and even gave Zhuang Wei a few words of introduction.

There are some things that you can learn without stealing. If you can't learn, you can't even teach them.

The prepared fingerprint map was thrown into the software, and the feature points were marked only once, and the same fingerprint was found at the 8th position.

This is a very high ranking. As Li Zemin said, the fingerprints are indeed those of an ex-convict.

It has to be said that the judicial system of Shannan Province is really doing a good job in printing fingerprints.

Jiang Yuan clicked submit and took out his mobile phone. Zhuang Wei was a little dazed and asked: "Did you win?"

"right."

"Hmm... a murder case?"

"Probably not. I didn't ask specifically about the case. I'll tell Brother Li." Jiang Yuan said, taking out his cell phone and dialing Li Zemin.

Li Zemin answered the call almost instantly.

From the receiver, Li Zemin's amplified laughter could be heard: "Hahahaha, I knew it would take a minute for you to do your fingerprints, Jiang Yuan. Did you win?"

"I won the competition, but it took almost two hours." Jiang Yuan said with a smile: "We have to get the time more accurate, otherwise, you will have to say that I was negligent."

"How is it possible? From the first time you handed Huazi a cigarette, I knew that I was destined to be your brother."

"You are here on business when you are free. Please smoke a cigar."

"Good guy, just wait... Oh, I saw the fingerprints you submitted in the background. The expert review has not yet been completed. Yes, I will notify the arrest."

Although Jiang Yuan is also a fingerprint expert certified by the provincial department, he can do expert review. But the fingerprints he made himself still need to be reviewed by others.

Domestic requirements for the accuracy of fingerprint evidence are still very high.

Jiang Yuan responded before asking: "What case is it?"

"It must be a murder case. Can I ask you about a small case? It's just a current case. Looking at the scene, it seems that he is a habitual criminal. The crime has escalated..."

Li Zemin said a few words briefly, quickly hung up the phone and went to report the situation.

Jiang Yuan put down the phone and smiled at Zhuang Wei, who could clearly hear it next to him: "I really didn't expect it to be a murder case."

"That's right." Zhuang Wei smiled with a hint of helplessness: "Who would have thought that even a fingerprint expert can't do it, and asking someone to compare the fingerprints would be a murder case."

Buzz.

Jiang Yuan's cell phone lit up.

"Shannan Fingerprint Exchange Group" flashes red again:

Shannan Li Zemin: [Thank you to my brother Jiang Yuan for winning a murder fingerprint in our city. Spread flowers! ]

Changyang City - Shuidong District - Trace Inspection He Guohua: [Jiang Shen, yyds, scatter flowers! 】

Shannan Zhu Huanguang: [Review passed. scatter flowers]

Provincial Department - Fingerprint Post - Yang Ling: [Ningtai is far away from the river, and fierce flames are billowing. 】