Arthr-
发表于 2025-3-23 11:52:52
Introduction,ons visual cryptography is suitable and in which applications classical cryptography is preferable, in order to guide the reader to select appropriate cryptographic tools according to their intended security services. From these applications, the existing algorithms can be classified into several categories.
黄油没有
发表于 2025-3-23 16:31:36
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obeisance
发表于 2025-3-23 18:17:21
Digital Halftoning, error diffusion, and direct binary search (DBS). The mathematical models for error diffusion are also discussed. Finally, some commonly used perceptual quality measures for halftone images are introduced. These measures are particularly useful when developing algorithms for grayscale images in later chapters.
反叛者
发表于 2025-3-24 01:52:25
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Frenetic
发表于 2025-3-24 03:52:44
1860-4862 crypted gray scale secret images.Employs quality measures su.This book comprehensively covers the important efforts in improving the quality of images in visual cryptography (VC), with a focus on cases with gray scale images. It not only covers schemes in traditional VC and extended VC for binary se
费解
发表于 2025-3-24 07:08:00
Introduction,n order to give the reader a general idea of this topic. Then, we identify some important applications of VC. Here, we also discuss in which applications visual cryptography is suitable and in which applications classical cryptography is preferable, in order to guide the reader to select appropriate
仔细检查
发表于 2025-3-24 14:15:02
Basic Visual Cryptography Algorithms,icated algorithms in later chapters. First, we introduce the general framework of VC, such as access structure and general requirements (security and contrast). Then, we introduce the classical deterministic VC with pixel expansion as developed in Naor and Shamir’s seminal work. Next, the size-invar
Lipoma
发表于 2025-3-24 16:55:56
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LANCE
发表于 2025-3-24 20:39:03
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Expostulate
发表于 2025-3-25 02:54:02
Improving Visual Quality for Vector Schemes,line the basic vector VC for binary secret images. Then, we combine the AbS framework with vector VC to get better visual quality than AbS-based probabilistic VC and AbS-based random grid VC. For separate halftoning and VC encryption, we use the blackness preserving algorithm. For grayscale secret i