MATLAB: Getworldfilename uses

Mapping ToolboxMATLABread dataworldfile

In the MATLAB Mapping Toolbox there is getworldfilename function. According to help it derives the worldfile name from image filename. I was thinking of creating a worldfile based on this information as I work on georeferenced images. Therefore I do the following after reading an image:
>> WN = getworldfilename(fn)
WN =
mat_test2.tfw
>> R = worldfileread(WN)
??? Error using ==> worldfileread at 28
The input worldfilename 'mat_test2.tfw' is not a file.
Using single quotes for WN also results in the same error. I can of course create a world file easily using GIS Software. But I was wondering what purpose does getworldfilename serve? Is it just limited to get the name and nothing else?

Best Answer

Yes, it just creates the name.
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