A survey of copy-move image forgery detection techniques

Digital images are in used widely in recent years and for multiple purposes. The information will be shared through newspapers, magazines, internet, or scientific journals. It is used as a strong proof against various crimes and as evidence used for various purposes. With the appearance of means of image processing and editing tools, creating or transform images has become simple and available. There are many types of image forgery, one of the most important and prominent type is called copy-move forgery in which a part of the image is copied and pasted into the same image with the aim of hiding something important or showing a false scene. This paper surveys different types of digital image forgeries and forgery detection methods. The survey has been done on existing techniques for forged image.