civil forensic

Chapter 75
Forensic Office.

The pine tree outside the window was washed green by the rain, like a male who had just been circumcised, tender, moist and fleshy.

The little Chlorophytum inside the window has grown a bit, with a few drooping leaves covering the cigarette butts in the flower pot, and it looks quite shiny.

When Wu Jun and Jiang Yuan entered the office together, they immediately opened the window, stood in front of the spider plant, and said, "Smoke a cigarette."

Jiang Yuan's desk was against the wind, so it wasn't affected, so he said "Yes", turned on the software, and waited for the comparison.

When he first got the image enhancement skill, Jiang Yuan also tried to use it, but there was no suitable case, so he never used it.

After copying the video he just watched into the computer, Jiang Yuan directly pulled to the middle link, and began to make close-ups of the robber's short knife.

Perhaps in order to intimidate the victim, the two robbers in charge of carrying would stick out their knives from time to time and keep dangling in the air.This gave Jiang Yuan a lot of room for choice.

Image enhancement technology, for now, mainly has two technical routes.

One is spatial domain image enhancement, which is the most direct and "natural" enhancement method. In simple terms, it is to enhance pixels.

With more pixels on an image, the image will naturally be enhanced.The most commonly used one is histogram processing, which can be understood as the way of automatically adding pixels based on probability theory.Of course, specifically speaking, it is a technique related to concepts such as grayscale histogram, grayscale point calculation, histogram transformation, and histogram homogenization.

In addition, basic grayscale transformation, smoothing spatial filtering, sharpening spatial filtering, etc. are also technical solutions at the same level as histogram processing.

As for the other technical solution, it is the frequency domain enhancement method, which is to treat the image as a two-dimensional signal, and then transform the frequency domain to perform filtering and enhancement operations, which involves the famous Fourier transform, Walsh-Hadamard transform, cosine transform, wavelet transform, and more.

When Jiang Yuan didn't understand these technologies, he regarded them as a bible, and when he understood them, he used them... Computers were regarded as a bible.

The old office computer, I probably never thought about it, and finally took it all by myself.

It roared, howled, and trembled with all its strength. Under the impact of massive data and the bombardment of constantly changing technical means, the once arrogant atmosphere became weak, the once clear screen became flickering, and the once clear screen became flickering. The cold body became hot.

"You have to add another computer here." Wang Zhong looked at the computer that had entered a half-frozen state after some results, and couldn't help shaking his head.

"Can't add a new computer. I heard from Wei Yin that their back office has to sign several times to buy printing paper." Jiang Yuan said.

"Adding new equipment is definitely difficult, but as long as we can solve a few cases... Well, you and Wei Yin are still in contact in private?" Wang Zhong found it unbelievable.

Jiang Yuan gave him a strange look, and said, "I didn't contact you in private, just sent WeChat."

"You send WeChat in private?" Wang Zhong was shocked.

Jiang Yuan waved his hand: "It's just an occasional chat. Can you add new equipment if you solve the case?"

Wang Zhong was diverted by Jiang Yuan's words, and said: "Look at what you said, if you say, give me a new computer, I can solve three backlogs, Team Huang will definitely buy it for you... …

"It depends on three cases." Huang Qiangmin's voice came from the other side of the office.

With his back to the office door, Wang Zhong felt that his calves were sore, turned around with difficulty, and said in a low voice, "Captain Huang, I was...I thought..."

"It's okay, as long as the case is solved, I don't care about it." Huang Qiangmin smiled at 44.4 degrees, like a cute little crocodile. It's three serious cases."

"Yes...that's what it means..." Wang Zhong smiled as if he had just been fucked by a beautiful woman, not knowing whether to laugh or cry.

"Is there any progress in the case?" Huang Qiangmin looked at Jiang Yuan again, and the smile on his mouth automatically rose to 66.6 degrees.

He used to never come to the fourth floor where the criminal squadron is located.It's just an auxiliary squadron. For the captain of the Criminal Police Brigade, he has too many squadrons and businesses to care about.It is Da Zhuang of the Police Dog Squadron, and the captain also goes to see it from time to time.

After Jiang Yuan came, Huang Qiangmin's attitude changed obviously.

To Huang Qiangmin, a person who can directly solve the case is a different existence.

The reason why the Second Squadron and the First Squadron are more valued is that they can solve cases, solve big cases, and tackle tough problems!

Now, Jiang Yuan can also solve cases, solve major cases, and tackle tough problems, so Huang Qiangmin naturally wants to visit him from time to time.Units like the criminal police brigade can actually give very few material rewards, and it is not suitable to use material rewards to win over people.This is what Huang Qiangmin understood a long time ago.

Otherwise, if you really fight for money and income, there are still outsourcing companies that specialize in fingerprinting in the society. Awesome fingerprint experts who want to make money go in, directly bill by piece, and easily earn millions a year.

Therefore, Huang Qiangmin now pays more attention to the spiritual aspect and massages Jiang Yuan.

"Running, I can't get out." Jiang Yuan muttered, pointing to the computer with a blurred screen and soaring heat.

Wu Jun said from the side: "It's been half an hour, and my ears are so noisy."

Huang Qiangmin asked: "What exactly are you doing?"

"Image enhancement. The surveillance video copied back is not clear enough. I want to see the details of this knife. I think if the pattern on this position of the handle is clearer, I may be able to find similar pictures. Maybe We can find the source of the handle." Jiang Yuan turned on the phone, enlarged the image inside, and showed it to Huang Qiangmin.

Huang Qiangmin understood, his eyes changed again unconsciously.

Not to mention whether the case can be solved because of this, he is also extremely interested in the image enhancement.

"Where did you learn image enhancement?" Huang Qiangmin was half curious and half happy.

"I learned it casually in school." Jiang Yuan replied reluctantly.

Of course, Huang Qiangmin could only believe it, and said with emotion: "The young people nowadays are amazing. When I recruit new people this year, I have to look more... How long will I have to run?"

"It's almost there." Jiang Yuan pointed to the progress bar, it was already 99%.

10 minute later.

The progress bar is all red, and a picture is displayed.

On the handle of the knife, there is clearly a row of very distinctive dark flowers.The flower stems are twining and stretch out with eight claws.

"Let me search." Jiang Yuan opened Baidu as he spoke, and pulled Tu into it.

(End of this chapter)