An Example Embedding to Show JPEG-Fragility


Three JPEG images below look like the same. But actually, they are all different.

(c) is different from (b) in the "brightness of the earring."  (c) is slightly darker. Try to extract something from each of them by using Information Extracting program of Qtech Hide & View.


(a) Before Embedding (b) After Embedding (c) A slightly modified (b)


Return to the Previous Page

Back to Home

(Updated on  Mar. 16, 2014  by Eiji Kawaguchi)