Problems with showing geographic data in axes [geoshow, axesm]

Hello,

I am reading a ENVI image, i have no problem in reading the data and plotting the image.

Also, i have all this data from the image, and also know the size of it.

projection: 'UTM'
    image_coords: [1 1]
            mapx: 54220
            mapy: 46200
              dx: 20
              dy: 20
        utm_zone: '30 N'
            zone: 30
            hemi: 'North'
           datum: 'World Geodetic System 1984'
           units: 'Meters'

I generate all the values for each pixel of position in utm. I can aso change it to degrees or dms.

The problem i am having, is when trying to show all this values in the axes of the image. I generate the image with imagesc, where xt and yt is my full data of coordinates.

imagesc(image); 
set(gca,'xticklabel',xt);
set(gca,'yticklabel',yt);

But it only shows to me the last 11 data.

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Also, i was trying to make use of axesm function, but i wasn't able to make it work, or with geoshow, it seems like all this options are only avaible if you are using geoTIFF images but not external data.