نتایج جستجو برای: lsb matching

تعداد نتایج: 103032  

2001
Yan Li Peng Wen Richard Clark

Least Square Backpropagation(LSB) algorithm is employed to train a three-layer neural network for segmentation of Magnetic Resonance(MR) brain images. The simulation results demonstrate the use of LSB neural Network as a promising method for the segmentation of multi-modal medical images. The training time has been dramatically reduced comparing with that of BP network. The influence of the num...

2009
Seunghyun Lim Jimin Cheon Youngcheol Chae Wunki Jung Dong-Hun Lee Seogheon Ham

This paper proposes a 240 frames/s 2.1 M-pixel CMOS image sensor with column-shared cyclic ADC that consumes low power of 90 μW/column at 1.5 V supply and is applicable to the fine pixel pitch of 2.25 μm. The prototype sensor was fabricated in a 0.13-μm 1P4M CMOS technology. The measured DNL and INL are +0.59/-0.83 LSB and +2.8/-3.6 LSB, respectively. The measured maximum pixel rate is 500 Mpix...

2016
Kamaldeep Joshi Rajkumar Yadav Gaurav Chawla

As we all know security is needed when we want to send data over any medium so this requires a secure medium to send data. That’s why steganography comes in mind whose aim is to send data securely without knowing of any hacker. In this paper, a new technique is projected whose aim is to keep secrete communication intact. The proposed method blends the advantage of 2 bit LSB and XOR operation. I...

2008
Y. C. Liang J. Y. Hu F. S. Liu Z. T. Liu

We serendipitously find a new nearby Low Surface Brightness (LSB) galaxy from SDSS database. We estimate oxygen abundance of its H ii region SDSS J121811.0+465501.2 from electron temperature, as well as for another H ii region, SDSS J135440.5+535309.6, located in irregular LSB galaxy UGC8837. These two extragalactic H ii regions were classified as stars in the SDSS-DR4 database, and were found ...

2014
Sonia Bajaj

Today’s large demand of internet applications requires data to be transmitted in a better manner. Data is transferred in public communication system is not secure because of interception and improper manipulation by eavesdropper. So the better solution for this issue is Steganography, which is the technique of writing hidden messages in such a way that no one, apart from the sender and main rec...

2011
Mohan Kumar

Steganography is the science of hiding secret information in any cover data. It is mainly used for hidden communication between any people. The main aim of steganography concentrates on higher data payload ie., the maximum amount of secret data that can be hidden inside a particular cover media and the invisibility of the hidden data. This paper proposes a new algorithm for the same and the sec...

Journal: :Pattern Recognition 2008
Qingzhong Liu Andrew H. Sung Zhongxue Chen Jianyun Xu

In this paper, we present a scheme based on feature mining and pattern classification to detect LSB matching steganography in grayscale images, which is a very challenging problem in steganalysis. Five types of features are proposed. In comparison with other well-known feature sets, the set of proposed features performs the best. We compare different learning classifiers and deal with the issue...

Journal: : 2022

The Digital watermarking is a field of information hiding that entails the crucial in original data order to prevent illegal duplication and distribution multimedia such as image, video, text ect.. In this paper, we present two techniques embed watermarks cover image. first Least Significant Bit (LSB) method, which spatial domain technique considered fragile against attacks other operations. se...

2013
Chandra Mohan Reddy Sivappagari

Digital Rights Management (DRM) system is the effective scheme for digital transactions. The main disadvantage of DRM is that once the content is decrypted, it can be easily copied using widely available utilities. It can be removed by using protection system like steganography. Steganography is the art of communicating in a way which hides a secret message into the main information or cover. T...

Journal: :Clinical Interventions in Aging 2008
Teresa Wills Mary Rose Day

There is an increasing focus on promoting person-centred systems across continuing care settings, emphasizing the need to enhance the quality of life of older adults. Life story books (LSB) can provide a holistic view of older adults, promote relationship-centred care and enhance person-centred care. The process of developing LSB involve collecting and recording aspects of a person's life both ...

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