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| 1 | A secure image steganography algorithm based on least significant bit and integer wavelet transform显示文摘The rapid development of data communication in modern era demands secure exchange of information. Steganography is an established method for hiding secret data from an unauthorized access into a cover object in such a way that it is invisible to human eyes. The cover object can be image, text, audio,or video. This paper proposes a secure steganography algorithm that hides a bitstream of the secret text into the least significant bits(LSBs) of the approximation coefficients of the integer wavelet transform(IWT) of grayscale images as well as each component of color images to form stego-images. The embedding and extracting phases of the proposed steganography algorithms are performed using the MATLAB software. Invisibility, payload capacity, and security in terms of peak signal to noise ratio(PSNR) and robustness are the key challenges to steganography. The statistical distortion between the cover images and the stego-images is measured by using the mean square error(MSE) and the PSNR, while the degree of closeness between them is evaluated using the normalized cross correlation(NCC). The experimental results show that, the proposed algorithms can hide the secret text with a large payload capacity with a high level of security and a higher invisibility. Furthermore, the proposed technique is computationally efficient and better results for both PSNR and NCC are achieved compared with the previous algorithms. | ELSHAZLY Emad ABDELWAHAB Safey ABOUZAID Refaat ZAHRAN Osama ELARABY Sayed ELKORDY Mohamed | 2018 | Journal of Systems Engineering and Electronics2018，29，3： | 2 |
| 2 | 查看详情显示文摘 | Hassanin AA Zahran M A El-Gaby | | 0，，： | 1 |
| 3 | Eco- nomics of Disaster Risk, Social Vulnerability, and Mental Health Resilience显示文摘 | Zahran S Peek L Snodgrass J G Weiler S Hempel L | 2011 | Risk Analysis2011，31，7： | 1 |
| 4 | Text feature selection using parti- cle swarm optimization algorithm 显示文摘 | ZAHRAN B M KANAAN G | 2009 | World Applied Sciences Journal2009，，7： | 1 |
| 5 | CD4^+CD25^+ High FoxP3^+ regulatory T cells, B lymphocytes, and T lymphocytes in patients with acute ITP in Assiut Children Hospital显示文摘 | Zahran AM Elsayh Kl | 2014 | Clin Appl Thromb Hemost2014，20，1： | 1 |
| 6 | Personal efficacy, the information environment, and attitudes toward global warming and climate change in the United States 显示文摘 | Kellstedt P M Zahran S Vedlitz A | 2008 | Risk Anal2008，28，1： | 1 |
| 7 | Modified extended tanh-function method and its applications to nonlinear equations 显示文摘 | Elwakil S A El-Labany S K Zahran M A | 2005 | Applied Mathematics and Computation2005，161，： | 1 |
| 8 | Alteration of lipopolysaccharide and protein profiles in SDS-PAGE of rhizobia by osmotic and heat stress显示文摘 | ZAHRAN H H RASANEN L A KARSISTO M | 1994 | World J Microbiol Biotechnol1994，10，： | 1 |
| 9 | Unique correlation between mutated citrullinated vimentine Ig G autoantibodies and markers of systemic inflammation in rheumatoid arthritis patients显示文摘 | Zahran WE Mahmoud MI Shalaby KA | 2013 | Indian J Clin Biochem2013，28，2： | 1 |
| 10 | Pattern of hepatitis virus infection among pregnant women and their newborns at the Women’s Health Center of Assiut University, Upper Egypt显示文摘 | Kamal M. Zahran Mohamad S. Badary Michael N. Agban Nafesa H.R. Abdel Aziz | 2010 | International Journal of Gynecology and Obstetrics2010，，2： | 1 |
| 11 | Role of some postharvest treatments in maintaining mango fruit quality during cold storage 显示文摘 | Abd E1 -Monem E A A Zahran A A Shaban A E | 2013 | J Appl Sci Res2013，9，3： | 1 |
| 12 | Comparision between creatinineand cystatin C-hased GFR equations in renal transplantation 显示文摘 | Zahran A Qureshi M Shoker A | 2007 | Nephrol Dial Transplant2007，22，9： | 1 |
| 13 | External exposure doses due to gamma emitting natural radionuclides in some Egyptian building materials显示文摘 | Moharram BM Suliman MN Zahran NF | 2012 | Appl Radiat Isot2012，70，1： | 1 |
| 14 | Platelet antibodies, activated platelets and serum leptin in childhood immune thrombocytopenic purpura 显示文摘 | Badrawy H Elsayh KI Zahran AM | 2013 | Acta Haematol2013，130，4： | 1 |
| 15 | Studies on extrusion conditions of some cereals and legumes显示文摘 | Ismail F A Zahran G H | 2002 | Egyptian Journal of Food Science2002，30，1： | 1 |
| 16 | Retrograde intrarenal surgery monotherapy versus shock wave lithotripsy for stones 10 to 20 mm in preschool children :a prospective ,randomized study 显示文摘 | MOKHLESS IA ABDELDAEIM HM SAAD A Zahran AR | 2014 | J Urol2014，191，5： | 1 |
| 17 | Comparison between creatinine and cystatin C-based GFR equations in renal transplantation 显示文摘 | Zahran A Qureshi M Shoker A | 2007 | Nephrol Dial Transplant2007，22，9： | 1 |
| 18 | Pattern of hepatitis virus infection among pregnant women and their newborns at the Women’s Health Center of Assiut University, Upper Egypt显示文摘 | Kamal M. Zahran Mohamad S. Badary Michael N. Agban Nafesa H.R. Abdel Aziz | 2010 | International Journal of Gynecology and Obstetrics2010，，2： | 1 |
| 19 | Would the indwelling internal ureteral stent influence renal function despite relief of be- nign ureteral obstruction 显示文摘 | Harraz AM EL-Nahas AR Zahran MH | 2014 | J Endourol2014，28，2： | 1 |
| 20 | Cycling and Walking:Explaining the Spatial Distribution of Healthy Modes of Transportations in the United States显示文摘 | ZAHRAN S BRODY S D MAGHELAL P | 2008 | Transportation Research Part D:Transport and Environment2008，13，7： | 1 |
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