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17th International Conference on Sciences and Techniques of Automatic Control and Computer Engineering (STA)

作者： Dridi, Manel Hajjaji, Mohamed Ali Mtibaa, Abdellatif Univ Monastir Lab Elect & Microelect Monastir Tunisia Univ Kairouan Higher Inst Appl Sci & Technol Kasserine Kairouan Tunisia

ISBN: (纸本)9781509034079

Non-linear chaos is a property of equations, cauterized by non-periodicity, the high sensitivity to initial conditions and his control parameters, ability to reciprocal synchronization and unpredictability. The deterministic nature of the chaotic system can be used to generate a pseudo-random sequence for digital ciphering algorithms. This work presents a pseudo-random bit generator (PRBG), based on the chaotic system, which can be used for generating keys in real encrypts application to ensure a secure transmission in real time. The proposed approach is applied for encryption image. The totality of the pixels of the host image are XORed with a generated key based on the Logistic map (LM). It is implemented in Xilinx System Generator (XSG). A PRBG architecture is considered.

关键词： PRBG encryption image XSG logistic map

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Exploring a novel fusion-scheme based on mathematical equation system for encryption-image algorithm

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MULTIMEDIA TOOLS AND APPLICATIONS 2020年第33-34期79卷 24873-24888页

作者： Torres-Munoz, Delia Vazquez-Leal, Hector Hernandez-Mejia, Carlos Univ Xalapa Escuela Ingn Xalapa Ver Mexico Univ Veracruzana Fac Instrumentac & Ciencias Atmosfer Ingn Elect & Computac Xalapa Veracruz Mexico

Exploring the conception of robust encryption techniques for the security of digital images is a permanent necessity due to the existence of the Internet where sending and receiving information to establish communication is a high priority activity. encryption process is carried out by data transformation, i.e. shuffled or scrambled, so that the information can not be read by an unauthorized receiver and it can exclusively be decrypted using valid-keys. In this paper, a novel fusion-scheme based on mathematical equation system for encryption-image algorithm is explored. In order to do that, numerical pixels are introduced in a system of equations for fusing images with three different private-keys. In addition, classical tests between original and encrypted images such as correlation coefficient, number of changing pixel rate (NPCR), unified average changed intensity (UACI) and entropy have been carried out to support the effectiveness of image fusion for image encryption.

关键词： encryption image Linear equation system Fusion image Statistics attack

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A Novel Approach for Prediction of Lung Disease Using Chest X-ray images Based on DenseNet and MobileNet

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WIRELESS PERSONAL COMMUNICATIONS 2023年 1-15页

作者： Tekerek, Adem Al-Rawe, Ismael Abdullah Mohammed Gazi Univ Technol Fac Dept Comp Engn Ankara Turkiye

Covid19 corona virus has caused widespread disruption across the world, in terms of the health, economy, and society problems. X-ray images of the chest can be helpful in making an accurate diagnosis because the corona virus typically first manifests its symptoms in patients' lungs. In this study, a classification method based on deep learning is proposed as a means of identifying lung disease from chest X-ray images. In the proposed study, the detection of covid19 corona virus disease from chest X-ray images was made with MobileNet and Densenet models, which are deep learning methods. Several different use cases can be built with the help of MobileNet model and case modelling approach is utilized to achieve 96% accuracy and an Area Under Curve (AUC) value of 94%. According to the result, the proposed method may be able to more accurately identify the signs of an impurity from dataset of chest X-ray images. This research also compares various performance parameters such as precision, recall and F1-Score.

关键词： Covid19 Deep learning encryption image CNN

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A Steganography Based on Optimal Multi-Threshold Block Labeling

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Computer Systems Science & Engineering 2023年第1期44卷 721-739页

作者： Shuying Xu Chin-Chen Chang Ji-Hwei Horng Department of Information Engineering and Computer Science Feng Chia UniversityTaichung407Taiwan Department of Electronic Engineering National Quemoy UniversityKinmen892Taiwan

Hiding secret data in digital images is one of the major researchfields in information ***,reversible data hiding in encrypted images has attracted extensive attention due to the emergence of cloud *** paper proposes a novel reversible data hiding method in encrypted images based on an optimal multi-threshold block labeling technique(OMTBL-RDHEI).In our scheme,the content owner encrypts the cover image with block permutation,pixel permutation,and stream cipher,which preserve the in-block correlation of pixel *** uploading to the cloud service,the data hider applies the prediction error rearrangement(PER),the optimal threshold selection(OTS),and the multi-threshold labeling(MTL)methods to obtain a compressed version of the encrypted image and embed secret data into the vacated *** receiver can extract the secret,restore the cover image,or do both according to his/her granted *** proposed MTL labels blocks of the encrypted image with a list of threshold values which is optimized with OTS based on the features of the current *** results show that labeling image blocks with the optimized threshold list can efficiently enlarge the amount of vacated room and thus improve the embedding capacity of an encrypted cover *** level of the proposed scheme is analyzed and the embedding capacity is compared with state-of-the-art *** are concluded with satisfactory performance.

关键词： Reversible data hiding encryption image prediction error compression multi-threshold block labeling

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Reversible Data Hiding in Palette images

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IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY 2023年第2期33卷 648-660页

作者： Yu, Mingji Yao, Heng Qin, Chuan Zhang, Xinpeng Univ Shanghai Sci & Technol Sch Opt Elect & Comp Engn Shanghai Peoples R China Fudan Univ Sch Comp Sci Shanghai Peoples R China

Reversible data hiding (RDH) has been investigated for over two decades. Depending on the application scenario, it can be divided into RDH and reversible data hiding in encrypted images (RDHEI). Interestingly, almost all studies on RDH/RDHEI have been conducted on gray-scale images, and relatively few studies have been conducted on color images compared to those on gray-scale images. Moreover, very few studies have been undertaken on palette images as a widely used image format. For palette images in which pixels are not gray-scale levels but color table indexes, it is difficult to apply traditional RDH/RDHEI methods directly. Therefore, we propose a new framework for RDH/RDHEI specifically for palette images. This framework adds a route selection algorithm before the conventional RDH/RDHEI approach. To be specific, we propose a method named the shortest route with correlation and frequency selection to reorder the color table, followed by a correlation reconstruction of the remapped index image according to this color table. The experimental results show the improvement brought by our proposed route selection to the existing RDH/RDHEI methods in palette images.

关键词： image color analysis Correlation Indexes Gray-scale image reconstruction image coding Histograms Reversible data hiding encryption image palette image cloud services route selection

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A separable reversible data hiding scheme in encrypted image for two cloud servers

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INTERNATIONAL JOURNAL OF EMBEDDED SYSTEMS 2020年第1期12卷 62-71页

作者： Zhong, Haidong Chen, Xianyi Nanjing Univ Informat Sci & Technol Coll Comp & Software 219 Ningliu Rd Nanjing 210044 Peoples R China

This paper presents a separable reversible data hiding in encrypted image (SRDH-EI) based on code division multiplexing (CDM). In this, the owner encrypts the cover image first, and then uploads the preprocessed image to two cloud servers. In the servers, two encrypted pixels, on the same place of uploaded images, form an embedded vector. Finally the secret bits, which are encoded to CDM spreading sequences, are embedded into the vector. At the receiver side, there are three cases: 1) if they only have the data hiding key, the secret bits can be extracted;2) if they only have the encryption key, the original image can be recovered;3) if they have the two keys, both of them can be obtained. Compared with the classic dual-images RDH method, the proposed method protects the content security of the outsourced cloud image and has a better performance on visual quality and embedding capacity.

关键词： reversible data hiding RDH dual images encryption image cloud server separable embedded systems

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Crypto-compression of medical image Based on DCT and chaotic system

Crypto-compression of medical image Based on DCT and chaotic...

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Global Summit on Computer and Information Technology (GSCIT)

作者： Dridi, Manel Bouallegue, Belgacem Mtibaa, Abdellatif Univ Monastir Lab E E CSR Grp Monastir Tunisia Univ Monastir Natl Engn Sch Monastir Monastir Tunisia

ISBN: (纸本)9781479956272

This paper proposes a crypto-compression scheme to protect the distribution and storage of digital medical images. The proposed process uses a chaotic system in order to provide an efficient digital medical images encryption. This enhanced scheme combines between compression based on DCT and encryption. Simulation experiment, sensitivity and statistical analyses have validated the effectiveness of the proposed system.

关键词： encryption image DCT transform Chaos Permutation Arnold cat map the AES S-BOX

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image Transmutation in Reversible Manner for Camouflage image

Image Transmutation in Reversible Manner for Camouflage Imag...

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International Conference on Computing, Communication, Control and Automation

作者： Abhijeet Tanaji Khot Chetan J. Awati Sonam S. Kharade Department of Technology Shivaji University Maharashtra India

image processing is technique in order to improve the quality of the image. Presently more focus is on RIT a new technique is proposed, this technique improves the quality of the camouflage image also it can store the original image losslessly after data is get extracted. It is very essential to secure data. To overcome these security aspects, we developed a technique image Transmutation in Reversible Manner for Camouflage image. Different from all existing technique, RIT technique allows to transform the information of secret image into another cover image because of that we secure the original image, the camouflage image is same as the target image.

关键词： Embedded image RDH (Reversible Data Hiding) encryption image RIT (Reversible image transformation)

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