Digital Image Forensics Research Paper

1533 Words7 Pages

UNIVERSITY OF PRISHTINA

Faculty of Electrical and Computer Engineering

Image Forensics

Abstract

Nowadays digital media is one of the main means for information sharing and communication. Considering a large number of different photo-editing software applications and the advent of high resolution cameras the counterfeiting and the manipulation of images has become quite easy, thus we can say that the photography was manipulated a long time ago. Image forensics is a field that has an aim to validate the authencity of images through their history information. …show more content…

The digital era has made the fogery very simple and fast, therefore with today’s technology we can produce fakes on the go. This has made it a very difficult to find legitimacy of the photo because sometimes the real legitim photo appears to be fake and vice-versa, therefore to restore the credibility and authenticity of the real images we need more sophisticated methods.

3 Digital Image Forensics

Digital image forensics is a fairly new research field that mainly aims to gather the information about the history of the image, knowing that any tampering of the image leaves some kidn of a trace that will reveal if the image has been tampered. As a part of challenges that Digital Image Forensics inherits are the Steganography and Digital Watermarking. Both of these methods conceal information to protect the authencity and integrity as well as to protect wrightful owner.
The role of Digital Image Forensics is to prove the authenticity of the image for which we don’t have any previous reference or protection settings for integrity. These methods are usyally called the passive methods or blind methods.
Steganography and Digital Watermarking are not part of the main discussion in this document, thus we will try to describe both just briefly because they are closely connected with Digital Image …show more content…

Steganography has been also categorized as cryptography by many authors because hiding a message is considered as somekind of secret writing. The main types of steganography are Technical Steganography and Linguistic Steganography. We will not go deeper in describing these types since as mentioned Steganography is not the main theme of the discussion in this document.

3.2 Digital Watermarking
Digital watermark also known as forensic watermark is a peace of code embedded into an image document or video and it can be visible or invisible. Main aim of digital watermark is to protect the authenticity of a document and its author

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