If your purpose is to overlay your vector data over a raster data, you can use any standard GIS software. 

1. Convert kml to shape file

2. Open both, shape file and raster.

I feel in this case standard GIS tools perform better than Matlab

Thanks very much Surajit. I will try it. Hopefully, the tiff file will easily open in ArcGIS. 

Regards

If you have access to any of the GIS-base software, like ArcGIS, almost all of them support raster files along with Google Earth files. You can overlay each of them and analyze them.

Unless your purpose has to do something with MATLAB, as it do support raster files, but no idea about kmz/kml. You might find some help in their Support. 

There are few toolbox for MATLAB, that deals with kml/kmz file. Create an account in Mathworks to have downloading access:

Or you can buy Mapping toolbox for Matlab, in case, if possible. Consider the following link: https://www.mathworks.com/products/mapping/

Hi, Atiqa thanks a lot. I have already tried kml2struct. It did not support the kml file (I could not figure out what was the problem) I have. 

So I, first change the

1. first change the kml file to shape file in ArcGIS 

2. Then in Matlab add the projection file with the mask image I generated (my output image) and then save it as geotiff format. (This part is actually complicated and I need a considerable time to figure out how did I add the projection file to it and how would I extract the projection details of that mask image). I already have mapping toolbox and the function in that toolbox actually help to proceed this step.

3. the geotiff file then easily open in ArcGIS and I overlayed the shapefile on it. 

However, the google-earth toolbox you have mentioned is seems interesting to me. I will defilitely look at it. Thanks a lot again for your valuable suggestions.