Error in matrix to image

Hi community,

I've created a matrix with structures. This structures are antennas.

%Vertical
ant.elevation = Vertical.Elevation;
ant.VertMagnitude = Vertical.Magnitude; 
%Horizontal
ant.azimuth = Horizontal.Azimuth;
ant.HorizMagnitude = Horizontal.Magnitude;

%Gain and frequency
ant.freq = Optional.frequency;
ant.gain = Optional.gain.value;

I'm getting an error converting the matrix in image. The error is:

Error using image
There is no elevation property on the Image class.

I am converting the matrix to an image using

im = image(gNB,'CDataMapping','scaled');

It seems like the problem is obvious, the structure has an elevation an the class image isn't able to plot it.

How can I turn this matrix in a image? Is the parameters that I am using in image function a part of the problem?