This program shows that probability of inaccuracy is more than 20% in "SigmaDelta" strategy.run this program in "eightbits" folder after running "getfiles".
getfiles.m
autostat.m
as I made the observation, SigmaDelta strategy declares that when we embed a random data in a non-embeded file, in most cases, Sigmadelta increases. and dominantly this strategy is based on this idea. but what happens if this idea is misleaded in 20% of its works?
This program gets an original file, calculates its sigmadelta, then embeds data and again calculates sigmadelta.should the second sigmadelta be lower than or equal with the first one, this program detecs error and shows it on the screen. at last, it calculates number of errors and percentage of error occurances in all examinee files...for me, it found 23% of errors in 94 files. is it desired?
maybe my point of view is not correct or something is misunderstood by me?