Well, I really screwed up this time.

I wanted to delete a bad photo from the internal memory Gallery and instead deleted the entire album of 500 photos before I had backed it up.

I researched the web, tried out a couple of recovery apps, and have concluded that there may be no way to get there from here. But I want to learn whether there are any viable options.

The phone is an AT&T Samsung Galaxy Note II running Android 4.4.2 (KitKat).

My wife is gonna kill me over this. Any help would be appreciated. Thanks