Absolutely there are ways for the recovery of deleted photos, the images which is been deleted are not completely deleted from the hard drive only the contents is in visible status or cannot be accessed from the hard drive. If you haveaccidentallydeleted a photos from the hard drive dont use it for furtherstoringpurpose, then you're almost in a safer side for the recovery of deleted photos. Because the deleted photos are not really gone from the hard drive; just there are not listed but the data is still present. If the deletion is been performed in the camera, the data will be available in the memory card. Likewise if the data is been deleted in the memory card, the photos are still intact in it. If the deletion is performed in computer with a keystroke of DELETE, SHIFT+DELETE or single right click of delete option from which the data is been moved to "Recycle Bin". The data is recoverable from recycle bin with a restore option but what if the "Recycle Bin" only is been emptied dont panic,still the data will be available in the hard drive. The chances of recovery is possible only when your quick enough to get back the data.
Steps which helps to recover deleted photos in an easier way
Stop working or writing to the concerned devices where the data is been lost.
Select a good recovery software.
Check whether the product is a user friendly and has a trial version whether it can be evaluated the capability of the product.
Save the recover data into a healthy drive or else CD or DVD.