Image Interpolation Examples (Introduction)

Quick Examples and Basic Concept of Image Interpolation
(Nearest neighbor, linear and bilinear)

[@xxpirategamingxx7994]

Thank You Sir, most professors and textbooks just give you the formula's and read of the slides that aren't really theirs, but you explained it best with examples!

[@reddevil10003]

The best tutorial for interpolation on Internet.

[@kuroshhusseini8170]

Thank you so much. The way you teach is amazing and I underestood everything. You explained this in just 30 minutes while my teacher tried to do it in 4 h and I underestood nothing.

[@AllahRakha-e8o]

Very very helpful. Thanks a lot. Your way of teaching is very easy and interesting. You have some magic in delivering knowledge.

[@anamibnjafar6586]

This video really helped me to understand this topic. Thank you , Sir. Hope you would make more videos like this in the future.

[@UltraMinJuish]

Example 4. u = 24.4. It could be 22

[@rameshwadile4846]

Exactly

[@Set_Get]

and if done columnwise first and row-wise then it should be 23.6 !! cannot be 24.4 anyway.

[@artygogo3234]

ur a freethinker

[@TECHG0806]

@@Set_Get any way the answer is the same u=24.4

[@immrhrr]

For example 4 the answer would be 24.4 rather than 26.4 Small calculation mistake at the last Thank you❤

[@김김김-b6u]

It really helped me a lot. Appreciate you.

[@joaomota7597]

Nice explanation Sir! Brazil here ✌🏼

[@haiderali-wr4mu]

Mistake: at 11:26 there is mistake in equation it should be y(x1-x0) = y0(x1-x)+y1(x-x0). In your video last component of equation is y1(x0-x) it will result in negative value because x0 is smaller than x

[@abhishekahirwar713]

The value of t for bilinear will be 26 not 28 And also the value of u will be--> 24.4

[@vynguyenhoangquoc8313]

you're so great, Sir. But you will be greater if u give us the explanation about bicubic interpolation

[@georgetannous5162]

you saved me sir !! thank you

[@Awcator]

Awesome. Well explained. Now i want Bicubic,Lanczos3

[@frantherix]

Thank you professor!

[@joshuanwokoye]

Big thanks to you

[@TheArrowster]

Thank you very much!!!

[@ashishgor2163]

Thank you sir

[@furkatsultonov9976]

Thank you! Professor. Can we reach other tutorials of you on image processing? I am taking this course and having tutorials in the bag would benefit best.

[@hamlaouimohamed5908]

excuse me sir, i have two questions : the first one : 2*2 image if it was enlarged by a factor of 5 shouldn't it be of size 10*10 ? the second one : we have 6*6 matrix why are we only counting to 5 and not 6 ? thank you

[@Riazul]

In easy words: Before enlarge, if the distance between "10" and "40" is 1 After enlarge, the distance between them is 5

[@Alchemist_171]

@@Riazul Sir how do we consider the distance here? There seem only 4 pixels in between 10 and 40

[@Riazul]

We can consider the distance between adjacent pixels as 1. Therefore, 4 pixels in between 10 and 40 provides the distance 4+1=5

[@bpc1570]

I know that some people may describe this as upsampling by a factor of "3" because the original 2x2 image is mapped to 6x6 pixel map, in which each dimension is magnified by a factor of 3. Now since it's 2D, the number of pixels is increased by 3^2 = 9 fold, and this in indeed is the case because in the 2x2 image, we have 4 pixels and in the upsampled version, we have 4 * 9 = 36 = 6 ^ 2 pixels; we also view it as: 2*3 x 2*3 = 36

[@Set_Get]

@@Alchemist_171 consider the distance from center to center of pixels.

[@shubhab4660]

sir, can you explain the Bicubic interpolation also

[@soup6941]

easy to understand ~ good video

[@marcelochong4065]

Thanks for the vid, and pls make a Bicubic interpolation explanation pls ~

[@loc_research]

Thank you

[@graphicworld11]

Thank you sir!

[@sofianetaiocruz]

thank you so mush sir

[@yamika.]

very helpful!

[@ko_bong_love3214]

sir , can you explain bicubic interpolation?

[@Old_Wisdom_Echoes]

while finding the value of (u) You did a mistake that , you multiply 30x3/5 that is not correct, i think the correct calculation is 3x2/5. chek that and let me know plz

[@vigneshvicky6720]

Tq

[@uiuxshoaib]

Thank you :)

[@mananshah7471]

Everything is right but instead of divide by 5 it should be divide by 6 and also distance also according to that

[@umerkhan7203]

kindly explain how a 2 by 2 matrix enlarged by a factor of 5 become 6 by 6.

[@devglish8512]

thank you. is there a bicubic interpolation explained?

[@albertnoub371]

Thanks sir

[@gheyathmustafa6467]

Thank u for the great explanation... Do u have any examples of using Lagrange interpolation polynomial to enlarge image?? cause I can't find any clear examples?

[@roohullahshah8016]

Why does pixel replication reduce the quality of an image?

[@sugandhasingh3833]

can we apply lagrange or newton divided difference method interpolation method in an image

[@salmamoora6048]

Hi sir, I want to ask you about bicubic convolution interpolation in image to addopt on pixel estimation on wide missing pixels. Is it possible to use 8x8 neighbour pixels to perform bicubic convolution interpoltion? How about the kernel and the interpolation formula?

[@chiranjitpal8485]

Please sir make a video on sift

[@blacknwhite5875]

should have given an example for shrinking an image

[@ChristyWu-gd5ll]

example 4 u=24.4

[@bcatlog]

great, clearly explained