First Order Derivative Filters - Roberts, Sobel and Prewitt

[@janardanl7644]

Was searching for a good video with an example from around 20-30 minutes. This is the best!

[@subhajitdas1882]

You are a god ma'am...Tomorrow I've my DIP exm and thanks to your playlist I've understood all the problems well....Great work ma'am...

[@shoryapawar2219]

Thankyou for this playlist ma'am . It is helping me a lot for the academics purpose

[@PrathamDarpanJaulkar]

literally i've watched multiple videos regrading this topic and coudn't understand but now i understood it very well Thanks mam

[@souvikkhanagwal2089]

just watched till this video for my mid sem. got the same question od distances in exam aced it thanku

[@horroid2760]

شكرا جزيلا على كل فيديوهاتكم، المادة نفسها و الشرح بسيط يفهم.

[@junaidshahzad6772]

maam your lectures are amazing and very very helpful, i am so much thankful to u, u are the best teacher.

[@adnansami1599]

Alhamdulillah, you explained everything so simply! I have an exam on this tomorrow and this is helping a lot!

[@pavankumar8673]

You are a gem mam..cant describe your work in words..thanks for your effort. You surely deserve lot more subscribers

[@collegefriendly]

Thank you so much for your wonderful comment😊

[@malikarslan9538]

you just took my breath away Could you pass on to your parents that they did an awesome job ????

[@billwhoever2830]

Ty for the easy to understand explanation, wasn't taught about these filters and could not understand how it worked when it was mentioned in a paper.

[@hazareroglu8950]

We only consider the X positions (horizontal )right do not calculate for the y(verticle). I consider like that because the filter you used actually the convolution of the original types for X. I hope I could explain myself

[@AbdurRehmanSaleem]

can you please tell why pixel (1,1) is not the first 50 @top left corner??? is the replication padded is already done?

[@AntarikshRajkonwar]

Same doubt

[@NotMelonYt]

@@AntarikshRajkonwarthe first 50 at the top left corner is (0,0) and the 50 we have taken is (1,1)

[@Abhishek-jr1yz]

@@NotMelonYt Indexing starts from (1,1) not (0,0) she might have solved it incorrectly !

[@NotMelonYt]

@@Abhishek-jr1yz kassa se puch bhai

[@subashadhikari3290]

Thankyou so much from the land of mountains, Nepal

[@malikarslan9538]

I can't focus on the topic while listening to such a beautiful voice. do we have any other option left?

[@itv5610]

Aren't we required to use both horizontal and vertical edge detection operators so that we're able to find gx as well as gy to compute the gradient?

[@Hello_am_Mr_Jello]

I'll use tangent for that

[@AmanRaj-yr8ig]

Amazing examination nd vioce also✨

[@stefythomas1301]

Thank you for this!

[@collegefriendly]

Thank you for your comment😊

[@pietroferraro9200]

Thank you, this is useful

[@JitusVlog2529]

What about zero padding???? In case sobel and prewit. Like when we are calculating magnitude of gradient of given input image using sobel or prewit???

[@aguirretrinidadenrique1372]

Nice video and example!

[@barbara.q3862]

Thanks help me amazing! congrats from portugal

[@collegefriendly]

Thank you so much!😊

[@explosion_ss4107]

Thanks, it helped a lot

[@ohmpatel4477]

Great explanation!! Thanks a lot

[@collegefriendly]

Welcome😊

[@tutunbej9139]

wounderfull session maam

[@sampadkar19]

why the pixel replication is done only the right and bottom and not on the top and left?

[@raghadfahad211]

you are the best

[@koustavsarkar6102]

This all algorithms help to smooth the noise in the image right?

[@Sam14M-u7g]

Thnak you for sharing

[@pranavkhurana1204]

Really nice! Looking forward to more such amazing videos🙌

[@collegefriendly]

Thank you so much Pranav! Will be uploading more videos soon.

[@Shahkabul3399]

Is there a normalization involved in sobel operator or not?

[@khaledibrahim9444]

If he gives me an image ( numbers) and ask me to generate gradient image how I will do it?

[@abdallah5744]

Thank you very much dear, the explanation is very clear and simple

[@collegefriendly]

Most welcome!😊

[@Sbmbrk]

mam, why are you not rotating the mask vertically and horizontally for convolution before multiplication?

[@godsendmelied.5848]

Thanks for this video. Please if after this operation the result is inferior to zero, what should we do ? Put 0 as the answer ?

[@derkthedutchi]

Do you use the (Roberts) filter once over the matrix (in the topleft corner), or do you use that another 3 times to get all the numbers in the matrix?

[@collegefriendly]

We'll just apply it once, as in the question, we have to apply the filters only on the pixel (1,1).

[@1batch2batch]

@@collegefriendly okay maam, and if it is not mentioned then we need to match for each pixels with their respective neighbors even in sobel and prewitt filter, right??

[@collegefriendly]

Yes

[@susheelapatgar3640]

Thank u mam ❤️

[@prateeksrivastava9663]

Nice video but why using only horizontal edge gradient?, answer should be combining both gradient. this way you only detect one directional edge. G= |Gx| + |Gy| or u can take its Euclidian form with sq roots and sq.

[@amanimegherbi8845]

Thank you soooo much

[@Abhishek_raj_2202]

If pixel is not given then what we have to do

[@ffs0]

kindly clearify are these set of steps for edge detection??

[@nithinr6478]

Thank you mam

[@5pointpulse-75]

Can you make a Video on Point, Line and Edge Detection pleaseee

[@AbhijitMondallovehiphop]

On a serious note this is really good, but need more help Apart from this can you explain what is edge linking and boundary detection???

[@ahmedalobaidy1]

thank you , what about the drive of Roberts filter ?

[@collegefriendly]

Sorry I didn't get your question! Can you please elaborate?

[@ahmedalobaidy1]

@@collegefriendly Second Derivative for the Robert

[@collegefriendly]

Roberts filter is a type of first-order derivative filter

[@zaidamin459]

Show the output of any edge detection alogrithm ma'am pleaeee

[@VinayKumar-dd7tt]

Very nice lecture, if any doubt where I can ask??

[@bekithembancube8680]

you didnt mention anything about gradient and magnitude.

[@DeepakSharma-yq3lc]

Sound is very high, please make video with low sound

[@nooneoneone]

question 3:58

[@Incredible2India]

Cool voice mam

[@rabumasori]

Txns

[@fazlerabbi5963]

When we have to do pixel replucation or zero padding and when to apply directly? Is it necessary to do zero padding/pixel replication before applying any filter? Please help me mam

[@Nipun_Mudgal]

madam thoda jor se bola karo sunai ni dera

[@Salman-ji7en]

You didn't apply the full operation, just the Gy component. This video is misleading. Thumbs down.

[@stha03]

Well because it can be done by simple calculation that she might have felt we can do 😅

[@iamvmt]

The Prewitt Method is wrong.

[@ammarali2584]

I WENT TO PDF TO ANSWER

[@kaifussain]

Pen of steel 🦸

[@imandarnoobda9091]

Thoda bolke padhaya kro

[@keshav6414]

please buy yourself a mic unable to hear you myadam' thank you rakesh mahanthi

[@bhukyasravani5338]

Not audible 👎

[@codingzindabaad]

Hello Anushree, Please continue your channel again because the way of explanation of yours is far better than my college teachers. And your voice is amazing. Please share your social media handle i.e. LinkedIn, so that I mentioned you and give you a shoutout. Hope you have a very bright future.