title: Using Matlab to change map projection of a geotiff map
body: <p>I loaded a map in GeoTiff format using geotiffread:</p>
  
  <pre><code>[A, cmap, refmat, bbox] = geotiffread('color_etopo1_ice_full.tif');
  </code></pre>
  
  <p>Since this map seems to be in one of the cylindrical projections, it means the continents are distorted. I want to change it so that I have a piece of a sphere instead, the way Matlab's Mapping Toolbox tutorials keep showing it can be done for shapefiles. I can't seem to get the same thing done with GeoTiff image and no tutorials handle that.</p>
  
  <p>Can Matlab change projection of a GeoTiff image or should I use another software for it, then load the new image into Matlab so I can then plot my data on it?</p>