Scalpel : Data Recovery From Byte Strings

In digital forensics, file carving is an essential process. It is a technique in which investigator uses databases of headers as well footers. These headers and footers contain byte strings. So, suppose you have 5 JPEG files. So all those 5 files will have same header & footer byte strings. So this tool carves data by analyzing that byte string. This Is an advance tool as it also carves file even after its metadata is removed.