The JPEG still picture compression standard
Communications of the ACM - Special issue on digital multimedia systems
JPEG compression history estimation for color images
IEEE Transactions on Image Processing
A bibliography on blind methods for identifying image forgery
Image Communication
Hi-index | 0.00 |
The choice of Quantization Table in a JPEG image has previously been shown to be an effective discriminator of digital image cameras by manufacturer and model series. When a photograph is recompressed for transmission or storage, however, the image undergoes a secondary stage of quantization. It is possible, however to identify primary quantization artifacts in the image coefficients, provided that certain image and quantization conditions are met. This paper explores the conditions under which primary quantization coefficients can be identified, and hence can be used image source identification. Forensic applications include matching a small range of potential source cameras to an image.