OpenCV Python Tutorial #6 - Corner Detection

Рет қаралды 67,509

Күн бұрын

Welcome to another OpenCV tutorial! In this OpenCV video, we'll be talking about corner detection. The point is to not just show you the corner detection, but to also introduce some of the interesting algorithms that OpenCV has built in. In this video, we'll only need 3-4 lines of code to find all the corners in an image within OpenCV.
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📄 Relevant Documentation: opencv-python-tutroals.readth...
📝 Code For This Series: github.com/techwithtim/OpenCV...
🔍 Playlist: • OpenCV Python Tutorials
⭐️ Timestamps ⭐️
00:00 | Introduction
01:37 | Corner detection
09:42 | Drawing corners
15:04 | Drawing lines between corners
18:35 | Outro
◼️◼️◼️◼️◼️◼️◼️◼️◼️◼️◼️◼️◼️◼️
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⭐️ Tags ⭐️
- Corner detection in OpenCV
- Corners OpenCV
- Python
- Computer vision
- Cameras and video capture
⭐️ Hashtags ⭐️
#OpenCV #Python #CameraCapture

Пікірлер: 83

@LyingParachute 3 жыл бұрын

Hey Tim. After watching your several videos I noticed, that you struggle breathing while you talk. My girlfriend is a speech therapist and she said that going to this kind of specialist would make your life easier. You should consider implementing simple breathing exercises to prevent larynx disease. It's important, becouse you talk a lot. Thanks a lot for making courses and tutorials, they're great! :)

@breathemath4757 2 жыл бұрын

Just in case you're not a fan of the map function, try: color = [int(x) for x in np.random.randint(0, 255, size=3)]

@Joker4funify 3 жыл бұрын

Hi Tim! It's great that you continue this series. Please continue it, don't ditch it:) P.S: I'm studying CV at my uni and your tutorials are just gold! Please, continue them. You are amazing, I'm watching you since 2019.

@cjay9615 2 жыл бұрын

Don't stop making these videos, some of the best python tutorials on the whole of youtube!!!

@abrafgesvbeac3676 2 жыл бұрын

Thank you Tim. You're so good as a teacher. Everything is clear and so fun to learn. Best wishes!

@mrphatmanzach 3 жыл бұрын

Instead of the map(lambda... for the np.random.randint you can also tuple a comprehension for the function. color = tuple(int(x) for x in np.random.randint()) Great video, love your channel!

@faizalimuhammadzoda4731 3 жыл бұрын

This is absolutely amazing. Greetings from Asia.

@youhadayoub9567 2 жыл бұрын

Thank you a lot, I m really injoying your lessons , thank u for the simplicity.

@bongvatana6803 3 жыл бұрын

Love this tutorial

@29namankumar29 3 жыл бұрын

Great video Tim👌✌️

@priyangshu7767 Жыл бұрын

Love your work

@JM_Tushe Жыл бұрын

That's pretty cool, thank you!

@davidjack5876 2 жыл бұрын

just wanted to leave this here: "good features to track" was the name of the paper publishing this improved corner detection method

@vanchhitdubey 2 жыл бұрын

Just wanted to tell you: you are amazing.

@pythonSefer 3 жыл бұрын

Hi Tim I just wanted to suggest a video idea for you: Make a tutorial about the vim text editor

@greenmug6436 3 жыл бұрын

just type vimtutor in the terminal

@PeterPkp123 3 жыл бұрын

I love your videos

@journalist272 3 жыл бұрын

Good job man

@syedazzamzafar596 3 жыл бұрын

@Tech With Tim The top right corner is left out. there is no line going or emerging from that corner.

@jollokim1948 3 жыл бұрын

looking forward to the next video 😏

@learnwithnawf246 3 жыл бұрын

Thank you tim

@BananaLassi 2 жыл бұрын

loved it

@fionanathanson6580 3 жыл бұрын

Nice video 👍

@cagndurmus2387 2 жыл бұрын

when ı enter the link which is called Relevant Documentation , it says that the page is abondoned . Do you have have a new link of it?

@DavidDanosTech Жыл бұрын

Nice !!!!

@gustavojuantorena 3 жыл бұрын

Great!

@MrHellmeowmix 2 жыл бұрын

The link to the documentation is "abandonded", do you know where I could find that information? I've tried a few google searches but I don't think I'm finding the right ones

@user-yp9mh9wc9w 8 ай бұрын

@techwithtim the python documentation in the description is not working are there any other websites for that?

@standingpad 3 жыл бұрын

Will there be a image denoiser tutorial?

@user-ih4ho1wh5h 3 жыл бұрын

I am a little confused with the line 19 at 19:59. Why did you use lambda x: int(x) instead of just a regular int(x). I don't use lambdas a lot so I'm wondering if I'm missing something here.

@TechWithTim 3 жыл бұрын

Oh good point! I could have actually just passed “int” as the function

@NoahPeeters 3 жыл бұрын

Could you make a video on image alignment using openCV?

@senahugtfl7789 Жыл бұрын

hi tim!it gives me the error like that: size.width>0 && size.height>0 in function 'cv::imshow' Could you help me please?

@petr4720 3 жыл бұрын

Top video

@keyaanminhas1199 3 жыл бұрын

When are we learning about object detection from images

@numo6144 Жыл бұрын

you can simply write corners = list(map(np.ravel, corners))

@numo6144 Жыл бұрын

and also rc = tuple(map(int, np.random.randint(0, 255, size=3)))

@georgegu3374 7 ай бұрын

on video cam, always set a fixed white-balance like 5500k. otherwise the color on captured image is changing with ambiant light. if you with greyscale, it doesn't matter

@sitpainghtun5367 3 жыл бұрын

Could you explain me a little more about second for loop ( for j in range(i+1), corners) )

@tusharikajoshi8410 2 жыл бұрын

it's for all the remaining corners. like, suppose i gives the 1st corner, so j will allow hold the value of all the other remaining corners, one by one, so that we can draw line from the 1st corner to every other corner. I am bad at explaining but I hope it helps.

@maliklao8917 3 жыл бұрын

can you do a program about scanner like MFL tank floor scanner in python

@yasthirdhewnarian6531 3 жыл бұрын

In Sublime Text, how exactly are you able to view the package methods ? Mine doesn't display that

@sokainabn6764 2 жыл бұрын

he's using Kite, an auto-complete plugin

@unbox3346 3 жыл бұрын

I was feeling first before refreshing page

@kesiamakapele3454 3 жыл бұрын

Hey dude,can you make screen recorded for android and can record internal audio

@malek3764 3 жыл бұрын

Hey Tim, I think you forgot to add the "OpenCV Python Tutorial #5 - Colors and Color Detection" video to this playlist

@Ambiens 3 жыл бұрын

I've just watched the 7th part and now 6th is the latest. Accidentally published?

@TechWithTim 3 жыл бұрын

yep lol

@aayushpaswan6826 3 жыл бұрын

@@TechWithTim nice!!

@Aditya-cw7rd 3 жыл бұрын

can you please make a step by step guide on how to start freelance as only python programming on fiverr or other?

@itfather 3 жыл бұрын

Hello Tim, could you please make a video with opencv OCR for the next video? Like if you support this idea

@vishnuagrahari5153 2 ай бұрын

Documentation link is not working please update it

@manas1743 2 жыл бұрын

Can someone again link the documentation. The link in the description says that the project is moved. Even the name of documentation would be enough for a google search.

@ankitpatil3490 2 жыл бұрын

I'm looking for it to

@manas1743 2 жыл бұрын

@@ankitpatil3490 Ok, I found it, would sen the link once I open my laptop

@ankitpatil3490 2 жыл бұрын

ok thanks.

@irfanzafar9506 2 жыл бұрын

@@manas1743 Kindly send me also . Thanks in advance for the favour.

@Bbdu75yg 2 жыл бұрын

can't access the documentation from the video ://

@pythonenthusiast9292 3 жыл бұрын

unable to download opencv man.. I downlosaded from pip install and all other mrthods said by tim . I tried diffrent youtube videios but im unable to import the library in my IDE. any help would be appreciated guys. thanks

@adityak1231 3 жыл бұрын

Can you import it in your Terminal/cmd ?

@pythonenthusiast9292 3 жыл бұрын

@@adityak1231 no ! It shows there also that no module found

@pythonenthusiast9292 3 жыл бұрын

@@adityak1231 and when I reinstall the opencv it shows requirement satisfied.. I'm so confused

@adityak1231 3 жыл бұрын

Try upgrading pip to the latest version and reinstalling it

@pythonenthusiast9292 3 жыл бұрын

@@adityak1231 I did try that, still nothing

@jyothishmohan5613 3 жыл бұрын

cv2.imread('assets/chessboard.png', 0) will give a grey scale image..I Think

@oliviervanluijk4133 3 жыл бұрын

0 is grayscale, 1 is color

@erfansadeghinezhad9780 3 жыл бұрын

😍😍😍😍😍😍

@piranavanr9096 2 жыл бұрын

I don't get any lines i don't know where I don't mistake any one tell me pls 🙏

@vinamis 3 жыл бұрын

lambda must be in lowercase vs Lambda Tx Twt

@rayaanibrahim4808 3 жыл бұрын

yay 5th

@sanduchicu7545 3 жыл бұрын

901 view, 101 like :)

@Jdeadevil Жыл бұрын

The complexity of the second half of this video is making me swear under my breath. I've met my intellectual limit, I am legitimately too stupid to understand the part where you put lines between each corner.