Chapter 220 Changing Positions
The frowning Chen Kun was slightly startled 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 why Chen Kun doesn't like to use 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 Pictorial Investigation Team, and no one said anything about it.
Moreover, Chen Kun has confidence in himself. If he can't handle the images in Haizhou City, it will be useless for others to come.
However, Lu Chuan's reminder was like an enlightenment, and Chen Kun, who was stuck at the bottleneck, suddenly opened his mind.
I don’t care why Lu Chuan, a person who conducts spot surveys and identifies fingerprints, knows about Fourier transform.
Chen Kun asked subconsciously: "You mean to use Fourier transform to convert the image into a digital image?"
Lu Chuan nodded: "Now the image noise and sharpening processing have been relatively successful. The only flaw is that the original photo has relatively low pixels."
"Use Fourier transform to map the photo It may be better to convert and then enhance the pixels of the photo from the bottom layer of the data."
"Enhance the pixels from the bottom layer of the data?"
Chen Kun muttered a few words. .
Pop!
After pondering for a moment, Chen Kun slapped his thigh and shouted excitedly: "Why didn't I think of that?"
After saying that, Chen Kun immediately started data processing on the photos.
However, the following work also confirmed what Chen Kun said, there are specialties in the art industry.
Half an hour later.
The image is still the same as before.
It's not like the girls in some action movies, who can still make emotional expressions even if they don't feel anything.
It’s not done, it’s just not done, there’s no surprise at all.
“This Fourier transform... is not easy.”
As an expert in image processing, Chen Kun is of course relatively clear about using mathematically transformed images for data conversion.
But to be clear is to be clear, to know is to be aware, but just because you know many things does not mean that you know how to do it.
"Teacher Chen, maybe the software you are using has some problems with data conversion. How about I give it a try?"
Lu Chuan watched behind for half an hour, but he had already noticed that Chen Kun was The technology in digital image transformation is not particularly high.
Especially the software used by Chen Kun, although it can also perform data processing, is in fool mode and is far less useful than the program written by Lu Chuan himself.
When Chen Kun heard that Lu Chuan wanted to try it, he quickly stood up.
Chen Kun knew that Lu Chuan had a background in fingerprinting, but just heard that he could propose using Fourier transform to convert images 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 positions.
Chen Kun stood behind Lu Chuan, and Lu Chuan sat in front of the computer.
For image processing, Lu Chuan actually separated some skills from the skills of advanced fingerprint identification analysis.
Although when processing fingerprints, it is also necessary to perform some processing on sharpening and denoising fingerprint images.
But the fingerprint image is linear and the image itself is relatively simple.
So the skill level requirement in this area is not high.
Lu Chuan is more interested in performing mathematical transformations on fingerprint images, and then enhancing the data to achieve the purpose of making blurry images clear.
The structure of portrait images is relatively complex, requiring 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 mathematically transform the image and then enhance the underlying data.
After downloading his commonly 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 data conversion. In the past, Lu Chuan's data conversion of fingerprint images was relatively simple. He only needed to convert each ridge, and then the entire image was completed.
However, there are only twenty or thirty ridges on a fingerprint image at most.
The amount of data converted is relatively small, but the portraits are different.
It is not simply composed of twenty or thirty lines. The amount of data that needs to be processed for a portrait may be the amount of data of hundreds of fingerprint images.
Although the principles are the same, this is also the reason why Lu Chuan always crashes in his office using his own computer.
As expected, the computers of the Scouting Brigade lived up to Lu Chuan’s expectations.
The amount of data that once crashed his computer is running very smoothly on the computer used by Chen Kun.
The data strips of data conversion are advancing at a speed visible to the naked eye.
Looking at it like this, it can probably be done in about ten minutes.
"Wait a moment, data conversion will take some time."
"Haha, don't be in a hurry."
Wu Kaiyue also saw it.
No wonder, Liu Guodong just called and said he wanted to borrow a computer instead of borrowing a person.
This Lu Chuan is not only great at fingerprints, he is also great at image enhancement.
Wu Kaiyue could understand most of what Lu Chuan had done on the computer just now, 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 in surprise.
Image processing is not as simple as addition and subtraction. What is the concept of being able to compile a program by yourself?
At least, Chen Kun himself does not have this ability.
“Actually, it’s just a plug-in program. It mainly relies on the software itself, and then having a computer with better performance is basically enough.”
“Teacher Chen, I put this little plug-in program in On the computer desktop, if you don't mind it, you can also study it. This plug-in program has some good effects in data processing of images with this software."
Lu Chuan felt that he had a system. People can be appropriately generous.
What's more, I'm borrowing someone else's computer this time.
"Ah...oh, thank you."
"Also, don't call me teacher. I'm a few years older than you. If you don't mind, just call me Brother Chen."
At first, Chen Kun had no objection to Lu Chuan calling him Teacher Chen.
Chen Kun feels that he does still have some strength in image processing. Although Lu Chuan is good at fingerprint processing, as he said, he has a specialization in the field.
However, it now 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 him in this aspect.
"Okay, Brother Chen."
As he spoke, the progress bar reached 100%.
The image data conversion is complete.
Of course, data transformation is only the first step, and the rest is the most critical, which is to enhance the underlying data.
This cannot be solved by a small plug-in.
This requires experience and more mathematical transformations.
(End of this chapter)