how to enhance an image using bicubic interpolation

I have to enhance an image using bicubic interpolation...Can u please help me which builin function i have to use...Thanks in advance

Answer 1

[Matt J]

griddedInterpolant() or interp2() can do bicubic interpolation.

No idea how this could produce an enhanced image, however.

[Sharen H]

xx =

    1    2    3
    2    3    4
    3    4    5
F = griddedInterpolant(xx,'cubic') i am getting error Please help

[Matt J]

i am getting error

Not me. For me, it works fine,

    >> xx=[1 2 3; 2 3 4; 3 4 5];F=griddedInterpolant(xx,'cubic');
    >> F(2.5,1.5)

    ans =

         3

    >> F(3,2.5)

    ans =

        4.5000

Answer 2

[Image Analyst]

I don't see any reason why that would enhance an image. Did you perhaps really mean to the use word "resize" rather than "enhance"?

The built-in function that does bicubic interpolation is called imresize() and it's in the Image Processing Toolbox.