Resetting a device will clear it out of all personal data and then reinstall the original data (not yours) on the device. I would say 98% of the time you can't get your personal stuff back. However, should you wish to try, here is some info on data recovery.
There are a few apps/programs out there that 'may' be able to help you recover the data.
A few of the programs you could try would be... DiskDigger, MobiSaver, Android-Recovery and Tenorshare. They are all data recovery apps/programs. There are many others out there, so check around and see which you would rather try. There is also one called RECUVA, that I have heard is free, which you could try.
One important note though, most of these programs are not free. They may say they...