1.1 Overview
The word steganography is of Greek origin and means "concealed writing" from the Greek words steganosmeaning "covered ", and graph demeaning “writing”. Steganography is the art and science of writing hidden messages in such a way that no one, apart from the sender and intended recipient, suspects the existence ofthe message.. Steganography includes the concealment of information within computer files. In digital steganography, electronic communications may include steganographic coding inside of a transport layer, such as a document file, image file, program or protocol. Media files are ideal for steganographic transmission because of their large size. As a simple example, a sender might start with an innocuous image file and
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Image domain also known as spatial domain techniques; embed messages in the intensity of the pixels directly. In transform domain; also known as frequency domain, images are first transformed and then the message is embedded in the image. Image domain techniques encompass bit-wise methods that apply bit insertion and noise manipulation and are sometimes characterized as “simple systems”. The image formats that are most suitable for image domain steganography are lossless and the techniques are typically dependent on the image format. Steganography in the transform domain involves the manipulation The main purpose of Steganography, which means ‘writing in hiding’ is to hide data in a cover media so that others will not be able to notice it. While cryptography is about protecting the content of messages, steganography is about concealing their very existence [1]. The applications of information hiding systems mainly range over a broad area from military area, intelligence agencies, internet banking, online elections, medical-imaging and so on. The cover medium is usually chosen keeping in mind the type and size of the secret message and many different type carrier file formats can be used. These variety of applications make steganography a hot
Farmers all through the 1920s had experienced “intense competition and declining prices because of overproduction [;] U.S. agricultural interests lobbied the federal government for protection against agricultural imports” (Britannica 2015). Herbert Hoover had sided with the farmers in raising Agricultural tariffs that eventually led to his presidency and signing of the act. This Smoot Hawley Tariff as it was called would “increase the cost of imported goods so that U.S. consumers would spend their money on U.S. products” in turn would save U.S. jobs in “import competing industries” (Suranovic 2012). The act went through various revisions leading up to the presidents signing that rose tariffs for
Steganography in the context of digital content piracy serves primarily as a method to track where digital assets are moving or who is receiving them. It can be a good solution for distribution of a small number of copies but becomes less effective when distributing on a wide basis. In order for it to be effective a content provider needs to recover the content by means of the unauthorized channel and examine the indicator marked on the copy. This is cumbersome for wide distribution but can be used on a broad basis such as by region. Region coding is used with many DVD releases for example but can also be considered a type of DRM (Andrew,
On September 21st, Christine Brennan reported Colin Kaepernick’s refusal to stand while the national anthem was being played in National Public Radio’s (NPR) online portal (www.npr.org). All through the National Football League 's preseason matches, Colin Kaepernick, a quarterback for the San Francisco 49ers, refused to stand for the national anthem. He clarified that he took this stance to point out what he sees as wrongdoings against African-Americans and different minorities, especially with regards to certain atrocities in police activities. Kaepernick has stated he is showing support for the Black Lives Matter movement, which was sparked by a number of police killing innocent black people. When addressed by journalists after the first occasion when he did not stand for the national anthem, Kaepernick stated that, “he would not show respect or pride in a flag for a country that continues to oppress African Americans and people of color.” He added that this was much bigger than any game and that it would be selfish on his part to look away. He also claims that there were bodies lying on the streets and people were getting away with murder. I don’t think Brennan understands why he chose not to stand fully. I think this also could have led to more attacks from other writers and reporters that have been inform of his true reasoning. I do not think he was disrespecting the flag or people that fight for it, but just making a stance to get
Nissan has a new flagship Maxima sedan, a 2016 edition that is stylish, sporty and competitively priced. Most people consider the Maxima Nissan’s largest model, but they would be wrong in that assessment, at least in one important area: total interior volume (cabin + trunk = total volume). Indeed, it is the Nissan Altima that offers the most room, even though the Maxima is recognized as the brand’s flagship sedan.
Montesquieu-Countries should be govern by law Montesquieu is a political philosopher during the Age of Enlightenment. He born in an old military family. The wealthy of his family provide chances for him to study science and history and learn about the upper class in the society. Later he studies about laws and science with the belief that knowledge of the law of government can improve people’s life.
Data hiding is a commonly used AF technique which is defined as “the art of hiding the fact that communication is taking place, by the hiding of information in other information“(Tyagi, 2012, p.120). Data is hiding is used to essentially removing data from view so it is far less likely to be uncovered meaning that it won’t be used in the forensic investigation. The evidence will not be changed or
Being a part of your Anthropology 110 class has been a privilege. I have learned about so many interesting topics and read so many interesting articles. I believe the work that I have done in your class can be used to my benefits in the future. You have taught me various skills that could be beneficial for me to use for my future career. Since I am trying to become a lawyer or a Private investigator, as for now, I believe that some of the skills I learned from your class can help me excel in one of these careers, that is if I choose to pursue it. In your class, I have learned how to analyze articles, how to observe people and how to interview people. If I were to be a lawyer, these skills could help engage with my clients and interpret their
According to the New Dictionary of the History of Ideas masks were used in the middle Egyptian period to mean a “second skin.” The idea of “masking” dates back to at least 30,000 B.C.E and we’ve used masks not only for medical purposes, but I would also like to use masks as a metaphor for the unaccepting nature of our society. I don’t want to assume what you do in your free time but I don’t think in this current time period that most of us are using masks to communicate with dead people, but if you do, you do you. Masks in our modern society are personas that people can hide behind so they can fit into a certain group of people and feel accepted. Which can be detrimental to our self-esteem.
Abstract—Video data hiding is still an important research topic due to the design complexities involved. We propose a new video data hiding method that makes use of erasure correction capa- bility of repeat accumulate codes and superiority of forbidden zone data hiding. Selective embedding is utilized in the proposed method to determine host signal samples suitable for data hiding. This method also contains a temporal synchronization scheme in order to withstand frame drop
Aim of my Final Project: The proposed approach in this venture utilizes another steganographic methodology called picture steganography. The application makes a stego picture in which the individual information is implanted and is ensured with a secret word which is very secured.
This nomenclature was originally introduced by Krzysztof Szczypiorski in 2003. [27] Contrary to typical steganographic methods that use digital media (images, audio and video files) to hide data, network steganography uses communication protocols' control elements and their intrinsic functionality. As a result, such methods are harder to detect and eliminate. [28]
Many digital services need reliable protection in storage and transmission of digital images. Due to the quick development of the internet in the digital globe nowadays, the protection of digital pictures has come to be extra vital and enticed far attention. The prevalence of multimedia knowledge in our area has promoted digital pictures to frolic a extra momentous act than the established texts, that demand weighty protection of users ' privacy for all applications.
In the present world lot of multimedia data is exchanged on internet and the percent of image data in that is highest. So we need to securely transmit that and this can be achieved by Image encryption.
Steganography is derived from greek words “stegos” and “grafia”.Stegos means “cover” and grafia means “writing”[2], so steganography can be called “covered writing”.
The rapid invention going in internet usage has resulted in the media ownership and attention towards intellectual property rights among internet users. In this paper, a Multiwavelet Transform (MWT) based video encoding is proposed. Video watermarking is the practice of inserting an encode information known as the watermark, into an original video in an imperceptible approach. The watermark converts or represents information that can protect the watermarked video, typically identifying the source or the intended destination of the video. The embedded watermark may be detected by using a watermark detector, which helps to possible an application to react to the presence (or absence) of the watermark in a video. However, the watermarked video may be processed, or attacked, prior to watermark detection. Attacks may remove the fixed watermark or make the watermark more complicated to detect. A logo watermark is composed in the uncompressed field of a video. Using IM, the watermark is embedded into the chosen multiwavelet coefficients by quantizing the coefficients. Scrambled watermarks are generated using a set of secret keys, and each watermark is embedded in each motionless scene of the video. The multi-wavelet transform uses two transformations such as Haar transform and Doubchies transform. The work is done with the help of designed user interface. This method extracts the secret message correctly and this provides better performance.