I wish to interpolate an image by a factor of 2, both horizontally and vertically. What is the bicubic interpolation operator in Julia that is the counterpart of interp2 in Matlab?
Take a look at Interpolations.jl package which has number of options for configuring interpolation algorithm.
Thanks to the rely. I am currently using:
X = Y = 1:2:512
Xq = Yq = 1:512
Zq = interp2(X, Y, yy, Xq, Yq, 3)
(here y1 is a 512-by-512 matrix)
However, the result is slightly different from Matlab’s result.