Preview the saved output visualization in matlab

[asadrizvi64]

How to visualize the output saved in .mat format? also the doors and windows aren't visible in the output of the interface, how am I supposed to visualize these .mat format files? in the test.png we can see doors and windows clearly since they have been previewed in local inference under the postprocessing directory but these details aren't present in the output visualization.

I was assuming upon saving I might be able to get a different format image type but somehow I'm downloading a matlab file which is too cryptic for me to understand. please help.