نتایج جستجو برای: درج lsb و lsb وفقی

تعداد نتایج: 762108  

2012
Ram Mohan Reddy

: Steganography is an art and science of writing hidden messages in such a way that no one apart from the intended recipient knows the existence of the message.The maximum number of bits that can be used for LSB audio steganography without causing noticeable perceptual distortion to the host audio signal is 4 LSBs, if 16 bits per sample audio sequences are used.We propose two novel approaches o...

1997
F H Briggs

The Fisher-Tully " 10 Mpc Catalog of Late-Type Galaxies " (FT, 1981) is remarkably complete. Despite the considerable effort that has been spent searching for and cataloging low surface brightness (LSB) galaxies, almost no new HI-rich galaxies have been added to the volume to which the FT observations were both sensitive (d < 10(M HI /10 8.2 M ⊙) 5/12 Mpc) and intended to be complete (d < 10 Mp...

2009
Jean-Luc Dugelay

A steganographic method called adjacent bin mapping (ABM) is presented. Firstly, it is applied to 3D geometries by mapping the coordinates within two adjacent bins for data embedding. When applied to digital images, it becomes a kind of LSB hiding, namely the LSB algorithm. In order to prevent the detection using a metric named histogram tail, the hiding is performed in a pseudorandom order. Th...

2011
Zhihua XIA Lincong YANG Xingming SUN Wei LIANG Decai SUN Zhiqiang RUAN

This paper considers the detection of spatial domain least significant bit (LSB) matching steganography in gray images. Natural images hold some inherent properties, such as histogram, dependence between neighboring pixels, and dependence among pixels that are not adjacent to each other. These properties are likely to be disturbed by LSB matching. Firstly, histogram will become smoother after L...

Journal: :SSRN Electronic Journal 2018

Journal: :International Journal of Computer Applications 2011

Journal: :فصلنامه تحقیقات کاربردی در علوم دامی 0
نجمه کارگر عضو هیات علمی مرکز تحقیقات کشاورزی و منابع طبیعی کرمان مختار علی عباسی دانشیار، موسسه تحقیقات علوم دامی کشور محسن شفیعی کارشناس اداره کل امور عشایرکرمان

the objective of the present study was to estimate genetic parameters and genetic trends of growth traits , fleece weight and reproductive traits. data collected from 1993 to 2007 by the kermani breeding station were analyzed .traits were included birth weight (bw, n=2614), 3 months weight (3mw,n=2312), 6 months weight (6mw, n=1890), 9 months weight (9mw,n=1380) and 12 months weight (12mw,n=105...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد یزد - دانشکده برق و الکترونیک 1392

چکیده نهان نگاری فرآیند درج داده ای موسوم به نهان نگاره، تگ یا برچسب در داخل یک شی چندرسانه ای به نحوی است که در آینده امکان شناسایی و استخراج آن جهت صحه گذاری بر روی شی مورد بررسی وجود داشته باشد. این شی می توان تصویر، صوت یا فیلم باشد. حتی ممکن است فقط متن باشد. تکنیک های نهان نگاری را می توان به روش های مختلف و در گروه های متعددی تقسیم بندی کرد. نهان نگاره ها را می توان در حوزه مکان (تصویر)...

2014
Ponnusamy Subramaniam Bob Woods Chris Whitaker

OBJECTIVES To evaluate the effect of different pathways for developing a life story book (LSB) for people with dementia. METHOD Preliminary randomised control trial; 23 people with dementia in care homes (mean age 86) randomly assigned to receive either 12 individual life review sessions and co-creating a LSB or a personal LSB created by their relatives as a 'gift' RESULTS No difference in ...

2003
Dmitry Bizyaev

We present results of surface photometry for eleven edge-on galaxies observed with the 6-m telescope at the Special Astrophysical Observatory of the Russian Academy of Sciences. The photometric scale length, the scale height, and the central surface brightness of the stellar disks for the galaxies were found using photometric cuts made parallel to the major and the minor axes for each galaxy. W...

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