© 2004 Computer Academic Underground
Why Outguess?
*Preserves cover-medium statistics in order to defeat detection by statistical analysis
*For JPEG images, Outguess preserves statistics based on frequency counts
*Before embedding data into an image, Outguess determines the maximum message size that can be hidden while still being able to maintain statistics
*Other technical cover-medium-analyzing goodness
•Outguess employs a number of techniques to help prevent the detection of steganography in potential stego-mediums.
•The primary thing it does for imagery is preserve image data statistics so that statistical analysis the images will not identify steganographic manipulations.
•Studying the other techniques that Outguess uses in an attempt to reduce the chances of detection are left as an exercise for the curious.