Canny Edge Detector - Computerphile

Taking edges one step further with Hysteresis Thresholding - The Canny Operator explained by Image Analyst Dr Mike Pound

This video was filmed and edited by Sean Riley.

[salaman_]

Mike's probably my favorite guest on here—I find these videos to be of a perfect technical level, including enough in-depth explanations as to give me a great understanding of how something works, yet not leave me confused from lack or overload of information. He does a great job at conveying details. Keep it up and thanks!

[ytan]

This is one of my favourite series of videos you've done. I hope there's more to come.

[joker]

God bless Dr Mike Pound for helping me pass in my Image Processing class. I have a horrible professor that makes everything more complicated than it has to be, and this series of videos has helped me out a lot. Thanks, Mike!

[JRCSalter]

5:19 This is REALLY clever. I love these vids. How we are able to edit images with nothing but manipulation of numbers is fascinating.

[MD-pgfh]

It's almost unCanny how well this works.

[antler]

I'd love to see a video on normal, bump, and displacement maps, and how they work.

[mohammadfallah.rasoulnejad]

I actually learned more than in my university class. thank you. I cant believe there is someone there who know all kinds of things like deep learning, Image processing and password cracking and so on at the same time.

[Vanko]

Where were you five years ago, when I was studying that and was needing such a great help?! Great videos!

[abdullahmubushar]

It's amazing how these things are done.

[_fRiction_]

Edge Detection is much more crispier to me now. Bravo !!

[juliocesarcaye]

Thank you compurtephile! This "series" of videos on edge detection came about at just the right time, as my final year project has to do with image processing and I was quite frankly lazy and now am in a hurry to get things done before the deadline. Really saved my life!!

[ITR]

Lack of edgy jokes in comment section :/

[AbdulrahmanMajash]

Oh yea! This refreshed the DIP course I took back when I was a college senior! Pretty much the best video explanation of Canny you can find! If anyone is experienced in Digital Image Processing, where do you suggest to go after Gonzalez's DIP book?

[DeJayHank]

Great stuff as usual! Hadn't thought about the thresholding being hysteresis threshold, but it really makes sense now.

[michelleteo]

Thanks to this video I realised I was using Canny wrongly... I always set the upper threshold to max 255 😆😆Thank u computerphile and Dr Mike for the great explanation!

[AnimeReference]

I get the feeling that this should be an hour long video, but it keeps getting cut short.

[gregsadler]

Security class + vision class this semester = Dr Mike Pound being my savior

[ej_entertain]

Such a genius !!! I hope he makes more videos on image processing and analysis.

[TheHoaxHotel]

For every pixel, there is an equal an opposite pixel.

[martinparidon]

This was remarkably useful and fun to watch. Exactly what I was looking for. Thank you.