zero pad to resize an image

How to add zeros by comparing the file sizes of the two images?

Suppose the first image is 240x152 and the second image is 240x168

And i need to resize the first image using zeros to the same as the bigger one that is 240x168

so how is it possible to do the same?

Answer 1

[Himanshu tripathi]

Try this

I = rand(240,152) ; // first image
iwant = zeros(240,168) ;
iwant(1:240,1:152) = I ;

[Pravita Lekshmanan]

i need to add zeros at the beginning of the first image to compensate with the second image

Could you please let me know how to do that

[Himanshu tripathi]

Are you looking for this?

zero_matrix = zeros(240,168-152);
I = [zero_matrix,I]

[Pravita Lekshmanan]

Yes exactly i was looking for the above answer and it worked well

Thankyou so much

Answer 2

[AISWARYA SUBRAMANIAN]

I would suggest you to look through the following link:

Padding an image in MATLAB