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Please use this identifier to cite or link to this item: http://hdl.handle.net/1812/446

Title: Enhancement of the Size of Hidden Data and the Quality of Image Using LSB Algorithm
Authors: Bilal Bahaa Zaidan
Keywords: Hidden Data
Quality of Image
Issue Date: 2009
Publisher: Universiti Malaya
Abstract: Steganography is the idea of hiding private, sensitive data or information within something that appears to be nothing but normal. If a person views the digital object that the information is hidden inside, he or she will have no idea that there is any hidden information, therefore the person will not attempt to decrypt the information, this is the main objective behind steganography. What Steganography technically does is to make use of human awareness; human senses are not trained to look for files that have information hidden inside of them, although there are programs available that can do what is called Stego-analysis (Detecting use of Steganography.) The researchers has been suffered from steganography or data hidden and the reasons behind these suffering are either stego-analysis, which present the level of data protection vs the possibility of against the data or the size of data which can be hidden in the carrier cover. Other challenge on data hidden is, when we try to increase the data hidden, the quality of image will be effected, in fact, the second challenge is the quantity of data hidden vs. quality of image. In this research we will overview the use of data hiding techniques in digital images. In particular we will describe on how one can use the human vision system and pure steganography to increase the size of the data that we want to embed in the image. We will focused on the property of human vision system that help to increase the amount of data hiding in the bitmap (.bmp) and (.JPG) image practically and improve the work by given result and make a brief discussion on this result, many point this research was focusing on, such as the feature of the increasing the size of data hidden and the Quality of image also the result was good.
Description: Dissertation (M.C.S.) -- Faculty of Computer Science & Information Technology, Universiti Malaya, 2009
URI: http://dspace.fsktm.um.edu.my/handle/1812/446
Appears in Collections:Masters Dissertations: Computer Science

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Table of FIG.pdf31.32 kBAdobe PDFView/Open
APPANDEX 1b.pdf22.15 kBAdobe PDFView/Open
references.pdfBibliography30.28 kBAdobe PDFView/Open
APPANDEX 1a.pdf22.25 kBAdobe PDFView/Open
name.pdfTitle page10.35 kBAdobe PDFView/Open
acknow.pdf21.4 kBAdobe PDFView/Open
ch1.pdf67.03 kBAdobe PDFView/Open
Abstract.pdfAbstract21.65 kBAdobe PDFView/Open
ch 3.pdfChapter 31.77 MBAdobe PDFView/Open
table of contenc.pdf25.84 kBAdobe PDFView/Open
ch 2.pdfChapter 2480.29 kBAdobe PDFView/Open

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