Patent ID: 7046804

Claim:
A computer operated system for producing an electronic security device image from one or more electronic source images, said security device image being adaptable for printing onto a document to secure said document against data alteration, said system for producing comprising: (a) deflection encoding means comprising means for applying a selected software lens to a first said source image and producing a deflected image; (b) encryption means comprising means for applying a mathematical encryption function to said deflected image or a second said source image and producing an encrypted image; and, (c) means for overlaying said deflected and encrypted images to produce said security device image whereby neither of said first and second source images is visible upon viewing said security device image and wherein each of said deflected and encrypted images is preserved and identifiable by means of a predetermined feature distinct thereto such that either of said deflected and encrypted images may be decoded without interfering with an ability to separately decode the other of said deflected and encrypted images; wherein said deflected image is configured for detecting therefrom said first source image by decoding by means of: (i) a physical lenticular lens corresponding to said software lens being manually applied to a printing of said security image; and/or, (ii) computer decoding processing applying said software lens to said deflected image, each said decoding means being selectable according to a user's choice without interference from any prior use of either or both said decoding means to detect said first source image; and, said encrypted image is configured for detecting therefrom either said deflected image or said second source image by means of computer decoding processing applying to said encrypted image a decryption function corresponding to said encryption function.