OpenCV Python Tutorial #6 - Corner Detection

[@LyingParachute]

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]

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)]

[@peaceandlovetoyou]

If you get errors Corners = np.int0(corners)change np.int0 to np.int_(corners)

[@Joker4funify]

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.

[@mrphatmanzach]

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!

[@cjay9615]

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

[@daymaker_trading]

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

[@pythonSefer]

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

[@greenmug6436]

just type vimtutor in the terminal

[@davidjack5876]

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

[@faizalimuhammadzoda4731]

This is absolutely amazing. Greetings from Asia.

[@prathamhebbar5800]

Hey Tim. I've known you and been following your tutorials for a while, now. I definitely appreciate your videos and content, don't get me wrong. I don't know why but I've noticed that (in your videos) that there is a sheer lack of expression and enthusiasm in your voice. I would suggest adding expression and enthusiasm in your voice in order to keep the viewers engaged. Best, Pratham Hebbar

[@vanchhitdubey]

Just wanted to tell you: you are amazing.

[@numo6144]

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

[@numo6144]

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

[@georgegu3374]

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

[@youhadayoub9567]

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

[@29namankumar29]

Great video Tim👌✌️

[@bongvatana6803]

Love this tutorial

[@JM_Tushe]

That's pretty cool, thank you!

[@jollokim1948]

looking forward to the next video 😏

[@priyangshu7767]

Love your work

[@cagndurmus2387]

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?

[@learnwithnawf246]

Thank you tim

[@journalist272]

Good job man

[@malek3764]

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

[@fionanathanson6580]

Nice video 👍

[@syedazzamzafar596]

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

[@standingpad]

Will there be a image denoiser tutorial?

[@DavidDanosTech]

Nice !!!!

[@itfather]

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

[@BananaLassi]

loved it

[@unbox3346]

I was feeling first before refreshing page

[@keyaanminhas1199]

When are we learning about object detection from images

[@Ambiens]

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

[@TechWithTim]

yep lol

[@aayushpaswan6826]

@@TechWithTim nice!!

[@PeterPkp123]

I love your videos

[@NoahPeeters]

Could you make a video on image alignment using openCV?

[@Pottavinay-w7f]

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

[@MrHellmeowmix]

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

[@senahugtfl7789]

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

[@gustavojuantorena]

Great!

[@jyothishmohan5613]

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

[@oliviervanluijk4133]

0 is grayscale, 1 is color

[@Aditya-cw7rd]

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

[@user-ih4ho1wh5h]

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]

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

[@petr4720]

Top video

[@sitpainghtun5367]

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

[@tusharikajoshi8410]

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.

[@vishnuagrahari5153]

Documentation link is not working please update it

[@manas1743]

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.

[@webpkric]

I'm looking for it to

[@manas1743]

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

[@webpkric]

ok thanks.

[@irfanzafar9506]

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

[@Bbdu75yg]

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

[@yasthirdhewnarian6531]

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

[@sokainabn6764]

he's using Kite, an auto-complete plugin

[@vinamis]

lambda must be in lowercase vs Lambda Tx Twt

[@maliklao8917]

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

[@Jdeadevil]

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.

[@kesiamakapele3454]

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

[@pythonenthusiast9292]

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]

Can you import it in your Terminal/cmd ?

[@pythonenthusiast9292]

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

[@pythonenthusiast9292]

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

[@adityak1231]

Try upgrading pip to the latest version and reinstalling it

[@pythonenthusiast9292]

@@adityak1231 I did try that, still nothing

[@piranavanr9096]

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

[@solverz4078]

Geez, you are very good are making really unreadable code 😅. There are SO many better ways to do some of the logic you show here.

[@erfansadeghinezhad9780]

😍😍😍😍😍😍

[@sanduchicu7545]

901 view, 101 like :)

[@coolghoul9]

is it boring or you dont understand it, 1min later you try to explain boring hypotenuse

[@prasannan-robots]

This time im not first im 9th

[@rayaanibrahim4808]

yay 5th

[@saucecircuit9992]

Smart guy but terrible teacher