Can anyone show me the algorithm to perform bi-cubic interpolation of an image?
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I need to determine bi-cubic interpolation of an image. Please show me how it is done.
Accepted Answer
KSSV
on 1 Nov 2018
I = imread('cameraman.tif') ;
[nx,ny] =size(I) ;
[X,Y] = meshgrid(1:ny,1:nx) ;
x = linspace(1,nx,500) ;
y = linspace(1,ny,500) ;
[Xi,Yi] = meshgrid(x,y) ;
I1 = interp2(X,Y,double(I),Xi,Yi) ;
imshow(uint8(I1)) ;
Also have a look on imresize
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