Attending ex-girlfriend's wedding, arresting the groom's officer on the spot

Chapter 220 Switching Locations
Chen Kun, who was frowning, was slightly taken aback when he heard Lu Chuan's voice.

Chen Kun has his own method for image enhancement, and after so many years of verification, it shows that this method is very effective.

This is also why Chen Kun doesn't like to use the software that everyone uses. He uses a very niche portrait processing software.

When Chen Kun was young, someone taught him how to do it.

Later, Chen Kun became the technical expert who firmly held the top spot in the graphic investigation brigade, so no one said anything.

Moreover, Chen Kun has confidence in himself, the image that he can't handle in the whole Haizhou city is useless if others come.

However, this reminder from Lu Chuan seemed to enlighten Chen Kun, who was stuck in the bottleneck, and suddenly opened his mind.

It doesn't matter why Lu Chuan, who is engaged in spot survey and identification of fingerprints, knows Fourier transform.

Chen Kun asked subconsciously: "You mean to use Fourier transform to convert the image to the image?"

Lu Chuan nodded: "Now the noise and sharpening of the image have been relatively successful. The only flaw is that the original photo has relatively low pixels."

"It may be better to use Fourier transform to convert the image to the photo, and then enhance the data to increase the pixels of the photo from the bottom layer of the data."

"From the bottom layer of the data...enhanced pixels?"

Chen Kun murmured a few words.

Snapped!
After pondering for a moment, Chen Kun slapped his thigh and shouted excitedly: "Why didn't I think of that?"

After speaking, Chen Kun immediately started data processing on the photos.

However, the following work also confirmed what Chen Kun said, there is specialization in surgery.

After half an hour.

The image is still the same as before.

It's not like the young ladies in some action movies, who can make emotional expressions even if they don't feel anything.

If it’s not done, it’s just not done, and there are no unexpected performances.

"This Fourier transform...isn't easy."

As an expert in image processing, Chen Kun is of course quite clear about using mathematically transformed images for data conversion.

But to be clear is to be clear, to know is to know, but if you don't know many things, it means you will.

"Mr. Chen, it may be that the software you use has some problems in data conversion, why don't I try it?"

Lu Chuan watched it for half an hour, but he had already seen that Chen Kun's skills in digital image transformation were not particularly high.

Especially the software used by Chen Kun, although it can also process data, but it is in a fool mode, far less easy to use than the program written by Lu Chuan himself.

When Chen Kun heard that Lu Chuan was going to try it, he got up quickly.

Chen Kun knew that Lu Chuan was originally engaged in fingerprinting, but just now he heard that he proposed to use Fourier transform to transform pictures and then perform data enhancement, which shows that he has made achievements in this area.

Lu Chuan was not polite either, and the two exchanged places.

Chen Kun stood behind Lu Chuan, and Lu Chuan sat in front of the computer.

For image processing, Lu Chuan actually extracted some skills from the skills of advanced fingerprint identification and analysis.

Although when processing fingerprints, it is also necessary to sharpen and denoise the fingerprint image.

But the fingerprint picture is linear, and the picture itself is relatively simple.

So the skill level requirement in this area is not high.

Lu Chuan is more about performing mathematical transformations on fingerprint pictures, and then enhancing the data, so as to achieve the purpose of making blurred pictures clear.

The structure of portrait pictures is more complicated, and it requires more time and operations in terms of denoising and sharpening.

Fortunately, Chen Kun has already completed these tasks in the previous processing. Lu Chuan only needs to perform mathematical conversion on the image, and then enhance the underlying data.

After downloading his frequently used software, Lu Chuan imported the software he had compiled from the USB flash drive.

Then drag the image processed by Chen Kun into it, and start the data conversion.

In the past, it was relatively simple for Lu Chuan to convert the data of fingerprint pictures. He only needed to convert each ridge line, and then the whole picture was completed.

However, there are at most twenty or thirty ridges on a fingerprint image.

The amount of converted data is relatively small, but the portraits are different.

It is not simply composed of [-] or [-] lines. The amount of data that needs to be processed for a portrait may be the amount of data of hundreds of fingerprint pictures.

Although the principles are the same, this is also the reason why Lu Chuan uses his own computer to deal with the total crash in his office.

And the computer of the graphic investigation brigade really lived up to Lu Chuan's expectations.

The amount of data that once crashed his computer ran very smoothly in the computer Chen Kun used.

Data strips of data transformation are advancing at a speed visible to the naked eye.

Looking at it like this, it can be done in about ten minutes.

"Wait for a while, the data conversion will take some time."

"Haha, don't rush, don't rush."

Wu Kaiyue also noticed it.

No wonder, Liu Guodong called just now, saying that he wanted to borrow a computer instead of a person.

This Lu Chuan is not only good at fingerprinting, but also good at image enhancement.

Just now, Wu Kaiyue could understand most of Lu Chuan's operations on the computer, but there were still some operations that he couldn't understand.

What does this mean?
This shows that Lu Chuan's ability in image processing is superior to his own.

"Is this a program you compiled yourself?"

Chen Kun asked a question in surprise.

Image processing is not as simple as addition and subtraction. What is the concept of being able to compile programs by yourself?
At least, Chen Kun himself does not have this ability.

"It's actually a plug-in program, mainly relying on the software itself, and then a computer with better performance is basically enough."

"Mr. Chen, I put this small plug-in program on the computer desktop. If you don't mind, you can also study it. This plug-in program cooperates with this software to process images into data, and it has some good results."

Lu Chuan felt that he was a systematic person, so he could be more generous.

What's more, this time I borrowed someone else's computer.

"Ah... oh, thank you."

"Also, don't call me teacher. I'm older than you. If you don't mind, just call me Brother Chen."

At the beginning, Chen Kun had no objection to Lu Chuan calling himself Mr. Chen.

Chen Kun felt that he still had some strength in image processing. Although Lu Chuan was good at fingerprint processing, he specialized in technology as he said.

However, it seems that the other party is... not weak in image processing.

Although image data conversion is only one aspect of image enhancement, Chen Kun feels that Lu Chuan is better than himself in this aspect.

"Okay, Brother Chen."

While speaking, the progress bar reached [-]%.

The data conversion of the image is completed.

Of course, data conversion is only the first step, and the rest is the most critical, which is to enhance the underlying data.

This is not something that a small plug-in can solve.

This requires experience and requires more mathematical transformations.

(End of this chapter)