Wanted to apply texture image on a surface

Hello,

I would like to apply a texture image to a surface that I created with this following matrix:

But I can not apply an image on it, I managed on an ellipsoid thanks to the function:

T = imread ('texturemetal.jpg');

surf (x, y, z, 'CData', T 'FaceColor', 'textureMap')

But there I can not, I tried to reapply the same function but with the fill3, I can not do it.

Thank you for your help