Data Format for managing images

I'm planning to develop an Android application which allows the user to take pictures and add additional metadata such as a number of tags, the location/event the picture was taken, what the picture is showing, etc. Also, my application should allow the user to view and manage those pictures, for example grouped by tags or possibly in a timeline view.

Now, my question is what kind of data structure/format would be the most suitable for such a usecase? I was considering creating a relational database using SQLite which would store all the image file paths, the metadata associated with them and so on, but was turned off by this idea due to the overhead associated with using an SQLite database on Android.

Are there any alternative approaches which would suit my needs any better?

Thank you in advance