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Chuan Kun Wu
Researcher at Chinese Academy of Sciences
Publications - 10
Citations - 222
Chuan Kun Wu is an academic researcher from Chinese Academy of Sciences. The author has contributed to research in topics: Visual cryptography & Secret sharing. The author has an hindex of 6, co-authored 10 publications receiving 215 citations.
Papers
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Journal ArticleDOI
Colour visual cryptography schemes
Feng Liu,Chuan Kun Wu,Xi Jun Lin +2 more
TL;DR: The authors propose a colour (k, n)-VCS under the visual cryptography model of Naor and Shamir with no pixel expansion, and a colour-extended visual cryptography scheme with pixel expansion the same as that of its corresponding black and white (k- n)-EVCS.
Journal ArticleDOI
The alignment problem of visual cryptography schemes
Feng Liu,Chuan Kun Wu,Xi Jun Lin +2 more
TL;DR: This paper considers the alignment problem in VCS, and proves that in order to visually recover the original secret image, it is not necessary to align the transparencies precisely.
Journal ArticleDOI
Cheating immune visual cryptography scheme
Feng Liu,Chuan Kun Wu,Xi Jun Lin +2 more
TL;DR: This study proposes a new CIVCS that can be based on any VCS, including those with a general access structure, and shows that it can avoid all the above drawbacks.
Book ChapterDOI
On (k, n) Visual Cryptography Scheme with t Essential Parties
TL;DR: Some bounds for the optimal pixel expansion and optimal relative contrast of \((k,n,t)\)-VCS are derived.
Book ChapterDOI
Flexible Visual Cryptography Scheme and Its Application
TL;DR: Two visual cryptography schemes which simulated the principle of fountains are proposed which are more general and simpler, real flexible and has competitive visual quality for the recovered secret image.