Is the deleted photo can recover or restore back?

Take out the memory card from camera, and then connect it to computer with a card reader, then download this digital photo recovery software from
http://www.asoftech.com/products.html

If a file has actually been "overwritten" and not just "deleted" then no your photos are toast. Had they been deleted you may of had a chance.

However you might want to attempt to use a program such as Tenorshare Datra Recovery (http://www.any-data-recovery.com/topics/photo/restore-deleted-photos.html ) and try and restore deleted photos. I doubt it will find anything that is actually recoverable but it never hurts to try.

Well, if a file is deleted and is not written by further data, then the file has actually been there.

I have came across such thing before, and I retrieve images mac with a data recovery tool called Tenorshare Data Recovery, just in few minutes, I undelete photos !

Besides, this tool also can help recover photos from camcorder and do memory stick recovery

Definitely Yes! First of all, you should stop saving any new files to your canon camera (or SD card) or taking new pictures with you camera.

Then find some photo recovery software from this site Best Computer Software, which is of high quality and easy-to-use.

Digital Photo Recovery for Windows

Digital Photo Recovery for Mac OS X

Here are the steps:

Step 1: Download and install the Digital Photo Recovery Software.

Step 2: Connect your camera (or SD card, memory card etc) to your PC or Mac.

Step 3: Scan the source drive where your lost pictures located.

Step 4: Recover the lost pictures and save them to another drive instead of the source drive.

Yes, it is possible to restore the deleted photos back!
As I know, after the accidentally deleting or formatting process, the contained files on a memory card or hard drive are not erased completely. They are all inside it and only become inaccessible and invisible.
So, before they are overwritten by any new data, you do have chances to get them back.
What you need is only a proper deleted photo recovery freeware that can help restore all your needed photos back:
http://blog4mark.blogspot.com/2012/12/photo-recovery-after-delete.html

PS: If you still want to restore all your photos back, you'd better not save anything new on this camera memory card.
In the future, you also should do regular data backups in case of similar data recovery problems.

Camera photo recovery for Canon:
To recover accidently deleted photos from the camera ,you can do as follows:
1.Stop using your camera right now
2.Download the Hodo photo recovery online and then install it to your PC
3.Connect your memory card to the PC with a Card Reader
4.Open the photo recovery software and follow the list steps to recover:
http://www.goshareware.com/resource/canon-photo-recovery.html

Use card data recovery. it can recoverp photos, video, audio and documents from digital camera's memory card.

Don't worry! Deleting won't make the pictures on a digital camera erase permanently.Those deleted pictures are still stored on the memory card of your camera, they're just invisible or inaccessible.You can recover them with photo recovery software. But once the deleted pictures were overwritten by new data,they are gone for good.
Here I recommend you these software that helped me out:
Mac Photo Recovery Software
Windows Photo Recovery Software

You can recover these photos by using a recovery software and not through the phone itself.

you may use the software on the link below to have those photos recovered.

http://www.filerecoverytools.com/products/fr_sd/