Region based Segmentation

[@AnkitKumar-ph6if]

In region growing algorithms, the seed point remains fixed throughout the process of growing the region. The seed point is typically chosen as the starting point for the region growing process, and it does not change as the region expands. Once the seed point is specified, the algorithm iteratively examines neighboring pixels and decides whether to include them in the region based on certain criteria (e.g., similarity to the seed point). However, the seed point itself remains unchanged, serving as a reference point for the region growing process. Changing the seed point during the region growing process could lead to inconsistent segmentation results and may not adhere to the intended segmentation criteria. Therefore, it's common practice to keep the seed point fixed throughout the region growing algorithm.

[@rishirajsinghrathorepgi19c56]

for those having confusion in ques 1 , the reason why 4 is not included is that we will check the difference from the initial element which is 7 so only elements included are 5,,6,5 satisfying the minimum threshold

[@aishwaryakubasad8373]

S

[@HatersKI_MKC]

as per you ans How can we include 5 since it already given 4connectivity

[@indranilmondal1270]

But 5 is included , in that case we checked 5-6 and not 5-7

[@bhuppidhamii]

thnku

[@krish8804]

no

[@nkbanerjee2549]

Came here to thank you di...today I have had my dip question paper and all the topics that you'd covered were there in the question paper...without yoh I can't even think how can I pass...now I've attempted all the questions correctly...thank you so much di...you're truely amazing ✨

[@rudranathpalit9948]

@CollegeFriendly Hi! Nice video but I guess there is a key misconception here. The seed point should not change during region growing. This is because while handling 5, 4 will come into the region which means in the next step 2 and 1 will get absorbed followed by 0 and so on. Hence, the entire image will become a single segment. For a simpler understanding assume there are 256 points on a line with values 0,1,2,..., 255. Then 0 is similar to 1, 1 is similar to 2, 2 is similar to 3... 254 is similar to 255. If we keep changing the seed point, this will mean 0 and 255 will lie in the same segment even though they are separate both spatially and in intensity.

[@anmol3]

thanks. now i know question 1 was wrong.

[@krishnakumarduraikkannu6642]

@@anmol3 Yes, there was committed mistakes while handling 5 and 4

[@SunnySingh-cw7so]

Thanking You For Teaching this , You are better than our college professor - HN VERMA

[@pawanesh_mnnit]

exactly❤

[@anidj3517]

Thank you for this playlist, my syllabus completed from here, many many many thanks 😊

[@saitama-kun9253]

If I crack my Internal assessment with this help, I'll like the whole playlist's videos individually. I'll recommend to my friends as well since it has been helpful for me. Date: 10/04/2022 21:39

[@yadnenbairagi9899]

+1

[@saitama-kun9253]

Consider it done. Thanks once again 😃

[@collegefriendly]

Thank you😊

[@danishzia8192]

ma'am 5-4 is 1 which is less than the threshold value. So shouldn't it be the part of our grown region?

[@fahadmirza8497]

yes it should be...i think she made a mistake

[@tihsrah6145]

@@fahadmirza8497 actually there's mistake in the concept here...we are checking with the original point 7 all the time...as if you are taking adjacent pixels every time then whole image would come under 1 segment...so just check the value with 7 and so it would be 7-4 =3 so it cant be taken....

[@dr.parthasarathide4290]

there is a difference between 5-4=1 which satisfies the condition

[@ankitkw]

Same doubt at 8:20

[@maheshkumarjadhav511]

Ohhh my goodness Very good explanation ❣️

[@saptarshidas488]

This is wrong, changing the seed point would end up covering the entire image. Please upload a corrected version

[@Sam-uo6xk]

so do we have to check the difference with respect to initial seed point only

[@x33rak]

@@Sam-uo6xk yes

[@rahuljadav1097]

Mam thank you so much for such great teaching it helped a lot

[@redbull123505]

In question 1 , for the element 5 in position (1,1) , while checking the absolute differences between its neighbours , isn’t the element 4 which is in position (2,1) will be in the region? I am having doubt in this part.

[@collegefriendly]

Yes you are right Sayan! Thanks for pointing this out. Element 4 will also be included in the region.

[@redbull123505]

@@collegefriendly Okay thank you for clarifying. Your contents are very easy to understand as your topic has explanations as well as examples together.

[@ayanmandal8257]

also element 2 which is below 4 at psoition(3,2) will also be in region bcoz it is coonected to 4?

[@anmol3]

@ayan You mean the position (3,1). Yes, I've the same doubt. If that's the case, whole image would get 'a'.

[@anmol3]

​​​@@collegefriendly Wouldn't then all the elements will get 'a' since difference between the two neighbouring pixels is ≤ 2. Perspective 2 - When 4 is compared with value 7. It'll be given a value 'b' that is 0 and will thus not participate further. Real solution - seed value doesn't change and will only be applied to 6.

[@kajolkhatwani374]

nice explanation , helped me a lot thank youu!!

[@mohammedmehdi1940]

at 14:04 shouldnt the pixels with 3 also be a part of the segment. because (6-3)

[@gareer2436]

3 is not an 8 way neighbour of any of the 6 valued Pixels. Since coordinates of seed point are not given, we will only grow the region based on neighbours of the seed value provided (6 here). Thus we do not include them in this example. However if the question was like Q1 where seed point coordinates were given, then we would have included 3 in our region.

[@आम्हीकोकणी-न6ट]

Can we make more than 2 region in region splitting and merging

[@blasenashvaz8945]

Uzzo video miss love you keep up the good work

[@Adarshparmar18]

hi i have doubt in second region ki umsi max=5 min=0 {c,d1,b3,d3}

[@kuchkuch82]

Kindly confirm whether seed point will change in region growing?

[@Sam-uo6xk]

did you get any answer

[@swipethestressaway7077]

no

[@vivekiyer9482]

On what basis u have decided ki how many pixels are there in 4 sub region??

[@ITB_ISHAANDWIVEDI]

Thank you so much! Great explaination :D

[@khushboopandya9744]

Plz make a video on Rule based and motion based segmentation

[@giteshkamble4424]

Except that one mistake, u taught so well☺️

[@kevian182]

Excellent vídeo! Thanks!

[@samirgiri8070]

I think all pixels of questions number 1 lies in growing region

[@pavanprasad3061]

the elemnt (2,1) iss not included why?

[@ramankumar41]

Very nice explanation, keep it up !!!

[@EscapeThirty]

I think solution is incorrect because here merging of region will depend on the order we select to compare the regions. So different users will get different values

[@tithipaul5135]

In question 2, why (4,6) point(3 value) is not in the region?

[@anmol3]

You mean (3,5) and not (4,6). No it doesn't satisfy the condition (absolute difference≤3).

[@aravind9432]

Thank you thank you thank you soo much 🙏🙏🙏 I don't know your name but I think you are a goddess 🙌🙌

[@moninmodi7440]

Mam we have to check aal pixel values from seed only but you are changing the seed values. Can you please reply on this.

[@AkashShaw-l4t]

very nice😇

[@shreyashagrawal9650]

Which pen u r using ?

[@kartikforwork]

😞

[@pavanprasad3061]

isnt 5-4

[@jaiswalrohan]

a real creator would have commented their mistake and pinned it! Bruh u can't just teach wrong stuff and let it pass even after knowing! f* now there's no point in even disliking the video, imma straight away report this video! Edit 1: bruh i was going through the comments and realized the question one wasn't wrong she didn't just explain. So ideally i should have deleted my comment but upon scrolling a little more she literally accepted the mistake and said she made a mistake and 4 needs to be included which surely doesn't have to be. But she accepted it as her mistake. This beacher doesn't even know what she's teaching! Edit 2: jaa nhi kar raa report aaj mood nhi h!

[@getknowledge9267]

You are doing mistake here 5-4 =1 the condition is satisfied here

[@MoralTown]

hey mam you haven't included the geometric transformation in the series of digital image processing..rotation of image,translation of image,shearing of image etc..these are the most important topics you haven't covered

[@vkgamer9305]

vo cgm me aata hai

[@xsuritox1058]

Anushree op , kaal hi exam hai mera, 6 din ki chutti thi , lekin nai padhna toh last din hi hai(T_T)

[@shenbajanar5770]

Watershed segmentation video I need

[@hannahlutfiahramadona817]

Gak ada subtitle Indonesia nya kah😭 mau belajar tapi ora paham😭🤣

[@trusharpatel5873]

They give us 5*5 image to split 😢😢

[@PradeepKumar-tl7dd]

misguided video .Half knowledge is disaster

[@ElectricalResearcher]

low lightining

[@theautumnleaves343]

totally a trash. don't run over half cooked knowledge.

[@fahadmirza8497]

ma'am 5-4 is 1 which is less than the threshold value. So shouldn't it be the part of our grown region?

[@e_51_shubhamdebnath43]

No... because it is already checked for 7