What to do for recovery of lost digital pictures from SD card?

[blunthos]

The Trash bin is the unison of multiple directories (folders) that are placeholders for files ready to be unlinked. You have a .Trash directory in your home folder. Every mounted filesystem has a .Trashes directory that holds files moved to the Trash bin. Within this directory the operating system creates a directory with your user id (which is a number) as the name of the directory. The file(s) that you wish to trash are placed within this directory. While it would be typical to find the 501 directory this is not always the case.

[Roshni]

To lost pictures from SD card is very annoying as so many difficulties take place. If possible get helped with picture copies and if none works than go for Photo Recovery Software.