Session
Computer Science and Communication Engineering
Description
In this paper a visual cryptography scheme with a binary additive stream cipher is used to form the meaningless shares (share images or multiple layers) of original digital image, hiding some secret information. Each share image holds some information, but at the receiver side only when all of them are superimposed, the secret information is revealed by human vision without any complex computation. Proposed algorithm for generating shares is applied in MATLAB programming environment, using MATLAB built-in functions to create sequences of pseudorandom numbers or streams, which are used to make share images of original digital image. The input image is first converted into a binary image, shares are generated using pixel expansion scheme, and after that are sent to the receiver. At the received side, the shares could be printed in separate transparent sheets and overlapped in order to reveal the secret image, with some loss in contrast when compared to the original image. An algorithm is applied to car number plate digital images with watermark. Digital image watermarking method is used to embed some data in a car number plate digital image in order to verify the credibility of the content or the identity of the owner.
Keywords:
visual cryptography, pixel expansion scheme, digital watermark, share images
Proceedings Editor
Edmond Hajrizi
ISBN
978-9951-437-96-7
First Page
23
Last Page
30
Location
Lipjan, Kosovo
Start Date
10-2020 12:00 AM
End Date
10-2020 12:00 AM
DOI
10.33107/ubt-ic.2020.499
Recommended Citation
Savic, Ana; Bjelobaba, Goran; Veselinovic, Radosav; and Stefanovic, Hana, "Visual cryptography scheme with digital watermarking in sharing secret information from car number plate digital images" (2020). UBT International Conference. 2.
https://knowledgecenter.ubt-uni.net/conference/2020/csi/2
Included in
Visual cryptography scheme with digital watermarking in sharing secret information from car number plate digital images
Lipjan, Kosovo
In this paper a visual cryptography scheme with a binary additive stream cipher is used to form the meaningless shares (share images or multiple layers) of original digital image, hiding some secret information. Each share image holds some information, but at the receiver side only when all of them are superimposed, the secret information is revealed by human vision without any complex computation. Proposed algorithm for generating shares is applied in MATLAB programming environment, using MATLAB built-in functions to create sequences of pseudorandom numbers or streams, which are used to make share images of original digital image. The input image is first converted into a binary image, shares are generated using pixel expansion scheme, and after that are sent to the receiver. At the received side, the shares could be printed in separate transparent sheets and overlapped in order to reveal the secret image, with some loss in contrast when compared to the original image. An algorithm is applied to car number plate digital images with watermark. Digital image watermarking method is used to embed some data in a car number plate digital image in order to verify the credibility of the content or the identity of the owner.