It was a very difficult task in old times without digital cameras and computers to create a good splicing photograph, which requires sophisticated skill of darkroom masking. Due to rapid advances in powerful image-processing software, digital images are easy to manipulate and modify. This makes it more difficult for humans to check the authenticity of a digital image. Nowadays, modifying the content of digital images becomes much easier with the help of sophisticated software such as Adobe PhotoshopTM. It was reported that there were five million registered users of Adobe Photoshop up to the year 2004 (Hafner, 2004). Image editing software is generally availabel, and some of them are even free, such as GIMPTM (the GNU Image Manipulation Program) and Paint.NetTM (the free image editing and photo manipulation software were designed to be used in computers that run Microsoft WindowsTM). The ease of creating fake digital images with a realistic quality makes us think twice before accepting an image as authentic. For the news photographs and the electronic check clearing systems, image authenticity becomes extremely critical.
|Original language||English (US)|
|Title of host publication||Multimedia Security|
|Subtitle of host publication||Watermarking, Steganography, and Forensics|
|Number of pages||15|
|State||Published - Jan 1 2017|
All Science Journal Classification (ASJC) codes
- Computer Science(all)