76: Chapter 75: The Dagger 76: Chapter 75: The Dagger Forensic office.
The pine trees outside the window were washed by the rain to a glossy green, looking as tender, moist, and fleshy as recently circumcised lads.
Inside, the little Diao Lan had grown a bit more, its drooping leaves hiding the cigarette butts in the flowerpot, which also looked shiny.
Wu Jun and Jiang Yuan entered the office together, their first move was to open the window and stand in front of the Diao Lan, with the former saying, “Let’s have a smoke.”
Jiang Yuan’s desk was upwind, unaffected, so he just grunted in agreement, powered up his computer, and opened the software, ready to make comparisons.
When he first acquired the Image Enhancement skill, Jiang Yuan had tried it too, but without a suitable case, he never got to use it.
After copying the video he had just watched into the computer, Jiang Yuan pulled it to the middle part and started to create a close-up of the robber’s dagger.
Perhaps to intimidate the victims, the two robbers responsible for carrying showed their knives periodically, constantly waving them in the air.
This gave Jiang Yuan a lot of options to choose from.
As for image enhancement technology, at present, there are mainly two technical approaches.
One is spatial domain image enhancement, which is the most direct and “natural” enhancement method.
Simply put, it enhances pixels.
The more pixels an image has, the more the image is naturally enhanced.
The most commonly used method is histogram processing, which can be understood as adding pixels automatically based on probability theory.
Of course, specifically, it’s about concepts and techniques such as gray-scale histograms, point operations on gray-levels, histogram transformations, and histogram equalization.
Beyond that, basic gray-level transformations, smoothing spatial filtering, sharpening spatial filtering, and so on are also on par with histogram processing technology.
The other technical approach is frequency domain enhancement, which involves treating the image as a two-dimensional signal, and then filtering and enhancing it by changing the frequency domain.
This encompasses the famous Fourier transform, the Walsh-Hadamard transform, cosine transform, wavelet transform, and so on.
These technologies, when Jiang Yuan didn’t understand them, were like gibberish, but once he got the hang of it…
the computer treated it like gibberish.
The old office computer probably never anticipated that it would bear the brunt of everything.
Straining with all its might, it roared, howled, and trembled as it was besieged by a deluge of data and bombarded by ever-changing technical methods.
Its once imperious breath became feeble Its once clear screen began to flicker, and its once cool body turned scorching hot.
“You really need another computer here,” Wang Zhong remarked as he watched the computer that entered a semi-crashed state upon delivering half a result, shaking his head.
“Can’t add a new computer though.
I heard Wei Yin say that the clerks have to sign several times just to buy printer paper,” Jiang Yuandao said.
“Getting new equipment is definitely tough, but as long as you solve a few cases…
Hmm, do you and Wei Yin still contact each other privately?” Wang Zhong found it unbelievable.
Jiang Yuan looked at him strangely and said, “There’s no private contact, just WeChat.”
“You guys chat on WeChat in private?” Wang Zhong was shocked.
Jiang Yuan waved it off, “It’s just an occasional chat.
Breaking a case would mean new equipment?”
Wang Zhong’s train of thought was derailed by Jiang Yuan’s words, “It depends on how you put it.
If you say, ‘Give me a new computer, and I can solve three backlog cases,’ Captain Huang will surely get you one in a hurry.”
“Depends on which three cases,” Huang Qiangmin’s voice came from the other side of the office.
Wang Zhong, with his back to the office door, felt his calves go weak.
He turned around with difficulty and said in a low voice, “Captain Huang, I thought…
“No problem, as long as it solves the case, I don’t mind hurrying,” Huang Qiangmin’s smile curled up to 44.4 degrees, his head tilted as he looked at Wang Zhong like a cute little crocodile, and asked, “But it should be at least three serious cases, right?”
That’s the idea…” Wang Zhong smiled as if his chrysanthemum had just been burst by a beauty, unsure whether to laugh or cry.
“Any progress on the case?” Huang Qiangmin then turned to Jiang Yuan, his smile automatically rising to 66.6 degrees.
In the past, he rarely visited the fourth floor where the Criminal Investigation Squad was located.
As a support squad, it wasn’t a high priority for the captain of the criminal police.
Even for Dazhuang from the K9 unit, the captain would visit from time to time.
Since Jiang Yuan’s arrival, Huang Qiangmin’s attitude had noticeably changed.
To Huang Qiangmin, someone who can directly solve cases is a different kind of presence.
Why are the second and first squads given more attention?
Simply because they can crack cases, big ones, and they can overcome tough challenges!
Now, Jiang Yuan could also solve cases, big ones, and take on tough challenges, so naturally, Huang Qiangmin would come to check on him from time to time.
In a place like the criminal police unit, tangible rewards are limited and not suitable to win people over.
Huang Qiangmin had understood this a long time ago.
Otherwise, if it came down to competing in terms of money and income, there are even professional fingerprint outsourcing companies in society today.
Brilliant fingerprint experts who want to make money can join them and get paid per case, easily earning millions a year.
Therefore, Huang Qiangmin now paid more attention to giving Jiang Yuan the equivalent of a spiritual massage.
“Still running; it’s not turning out,” Jiang Yuan mumbled, pointing to the blurred screen and the overheating computer.
Wu Jun added, “It’s been half an hour, it’s been so noisy my ears can’t take it anymore.”
Huang Qiangmin asked, “What exactly are you doing here?”
The surveillance video we copied back isn’t clear enough, and I want to see the details of this knife.
I think the pattern on this part of the hilt, if made clearer, might be matched with similar pictures.
Maybe we can find the source of the hilt.” Jiang Yuan opened his phone, enlarged the image, and showed it to Huang Qiangmin.
Huang Qiangmin understood and his eyes changed once again.
Whether or not the case could be solved with this information, he was extremely interested in Image Enhancement.
“Where did you learn image enhancement from?” Huang Qiangmin was half curious, half pleased.
“Just picked it up at school,” Jiang Yuan replied, somewhat reluctantly.
Huang Qiangmin could only believe him and couldn’t help but express his admiration, “The young people these days are something else.
When we recruit new people this year, I’ll have to take a closer look…
How much longer will it run?”
“Almost done.” Jiang Yuan pointed to the progress bar, which was at 99%.
The progress bar was completely red, and an image showed up.
On the hilt of the knife was a distinctive dark pattern.
The stem was intertwined, extending eight tentacles.
“I’ll search it up,” Jiang Yuan said as he opened Baidu and dragged the image into it.