Inserting data into an SQLite database
void getInitialization()

The name of the method implies that we would get something but the return value is void. Maybe a better name would be in order. How about Initialize() ?

an empty catch block is always a very bad sign. If you want to swallow any exception, you should clearly state with a comment why you are swallowing the exceptions.

it is always recommended to use braces {} for single statment if to make the code less error prone.

images = new Images(); where is images declared ? It would be better to have this as a method scoped variable instead of reusing a class level one.
In addition the name Images implies that it contains multiple Image items which it doesn't do.

If an exception is thrown from inside the try block after the call to  dao.open(); the dao will stay open.
You should use a finally block to close the dao.