The Keys to a Great Story Essay Example For Students

The Keys to a Great Story Essay Brett AndersonEnglish pd. 9Compare/ Contrast11/25/98What certain qualities are necessary to create an excellent literary work? What makes onework impossible to put down while another work is difficult to stay focused on? There are severalkey elements essential in making good work outstanding. These key elements are: interestingcharacters, an intriguing plot, a valid theme, and a carefully structured conclusion. These are the keyelements of a literary work that I am going to focus on and explicate for you. The characters in Witness for the Prosecution are believable through the authors vividdescriptions and through what Mr. Mayherne says about the characters during his interviews withthem. For example the author described Romaine as a foreign woman with high cheekbones , denseblue-black hair, and a nervous twitch in her hands that is distinctly foreign. The narrator went on tosay she is a strange, quiet woman, who is so quiet that she made visitors feel uneasy. The author isalso very detailed with her description of Mr. Mayherne. The narrator depicts him as a small preciseman, who is neatly dressed and recently had his boots shinned. She also said the most strikingcharacteristic of Mr. Mayherne is his shrewd and piercing gray eyes. From his brief encounter withMrs. Mogson, we found out that she was scared with sulfuric acid by Romaines boyfriend and hasbeen bent on getting revenge on Romaine. Plausible characters and vivid description make this storymore interesting and add to the plot of the story. We will write a custom essay on The Keys to a Great Story specifically for you for only $16.38 $13.9/page Order now The author of Wine was very non-discriptive about the characters. This lack of descriptionmakes the characters extremely difficult to relate too. The author never even gives her charactersnames. She just refers to them as a man and a woman. This total lack of detail makes it hard focuson the story and often you find it easy to lose sight of what is happening in the story. The plot for Witness for the Prosecution is clear, logical, and well-defined. The plot mainlyconsists of Mr. Mayherne and Romaine trying to get Mr. Vole aquitted of the charges that he killedEmily French. The most interesting twist of the plot in this story is that Romaine lied to the jury to getMr. Vole aquitted of the charges. By contrast there is no real plot for wine. The man and woman are sitting at a cafe for noapparent reason talking about their first kiss. The man tells the truth to the woman about his first kissand she gets upset with him. I thought this was an interesting point of contrast because in Witnessfor the Prosecution Romaine lied and won the court case for Mr. Vole , but in Wine the man toldthe truth to his wife and was ridiculed by her. The theme of Wine and Witness for the Prosecution almost seem to directly contradicteach other. The theme foe wine is the truth can be painful at times, whereas the theme for Witnessfor the Prosecution is that liars do not always get caught. The theme for Wine was hard tounderstand, because the woman gets upset at the man for no apparent reason when he tells the truth. The theme in Witness for the Prosecution is easily understood because it is clearly spelled out inthe conclusion of the story. The conclusion of Wine is very unclear, poorly developed, and not focused. It leaves a lotof unanswered questions in the readers mind. This completion never tells the reader what happensto the couple or why the woman is mad at her husband. The only thing the reader learns from thisconclusion is that the wine the husband and wife are drinking reminds them of their youth. Thisopaque conclusion only adds to the lack of purpose in the story. .ud6cb6d4e9787b5f701cff6c1b260c1b2 , .ud6cb6d4e9787b5f701cff6c1b260c1b2 .postImageUrl , .ud6cb6d4e9787b5f701cff6c1b260c1b2 .centered-text-area { min-height: 80px; position: relative; } .ud6cb6d4e9787b5f701cff6c1b260c1b2 , .ud6cb6d4e9787b5f701cff6c1b260c1b2:hover , .ud6cb6d4e9787b5f701cff6c1b260c1b2:visited , .ud6cb6d4e9787b5f701cff6c1b260c1b2:active { border:0!important; } .ud6cb6d4e9787b5f701cff6c1b260c1b2 .clearfix:after { content: ""; display: table; clear: both; } .ud6cb6d4e9787b5f701cff6c1b260c1b2 { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .ud6cb6d4e9787b5f701cff6c1b260c1b2:active , .ud6cb6d4e9787b5f701cff6c1b260c1b2:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .ud6cb6d4e9787b5f701cff6c1b260c1b2 .centered-text-area { width: 100%; position: relative ; } .ud6cb6d4e9787b5f701cff6c1b260c1b2 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .ud6cb6d4e9787b5f701cff6c1b260c1b2 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .ud6cb6d4e9787b5f701cff6c1b260c1b2 .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .ud6cb6d4e9787b5f701cff6c1b260c1b2:hover .ctaButton { background-color: #34495E!important; } .ud6cb6d4e9787b5f701cff6c1b260c1b2 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .ud6cb6d4e9787b5f701cff6c1b260c1b2 .ud6cb6d4e9787b5f701cff6c1b260c1b2-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .ud6cb6d4e9787b5f701cff6c1b260c1b2:after { content: ""; display: block; clear: both; } READ: Kants Humanity Formula EssayThe conclusion of Witness for the Prosecution is very focused, well developed and it tiesup all the lose ends of the story. The completion of this story reveals that Romaine is disguised asMrs. Mogson and it was Romaines false testimony that got her husband aquitted of his murdercharges. The conclusion of the story tells the reader everything that Mr. Mayherne knew and drawsan excellent ending to a great mystery. After carefully contrasting the key elements in Wine and Witness for the Prosecution ithas become apparent that Witness for the Prosecution contains the qualities necessary of a greatliterary work. Wine is lacking too many of the key elements essential in making a good literarywork. The differences between the two the two stories makes Wine difficult to stay focused onbecause it is lacking in many of these key areas. While having many of these key elements welldeveloped throughout the story makes Witness for the Prosecution, one of those stories that aretruly a pleasure to read.

Europes Rise to Power essays

Europes Rise to Power essays Scholars have been debating Europes rise to power for centuries. In the earliest history, it was due to Gods will. Then, many promoted the race theory. Now, the argument comes down to a combination of environment and culture says Harvard historian David Landes. He argues that argues in his books Wealth and Poverty of Nations: Why Some Are So Rich and Some So Poor and The Unbound Prometheus: Technological Change and Industrial Development in Western Europe From 1750 to the Present that Europe has been more progressive than all other civilizations for thousands of years at first because of a number of different factors, including geography (climate), sociology, anthropology and culture and economics. Landes cites several reasons for his argument (xxi): better climate, soils, topography, natural vegetation, health, nutrition, reproductive habits, values, politics, institutions (family, church, market, state, city,) inventiveness, innovativeness, and venturesome spirit. In addition to having the foundation of climate, "If we learn anything from the history of economic development, it is that culture makes all the difference," he says. In general, Landes explains that the more wealthy society will be one that 1)Knew how to operate, manage and build the instruments of production and to create, adapt and master new techniques; 2) Could impart this knowledge and know-how to the young; 3) Elected individuals for jobs by competence as well as promoted them on the basis of performance; 4) Afforded the opportunity to individual or collective enterprise; 5) Encouraged initiative, competition and emulation; and lastly 5) Permitted citizens to enjoy and employ the extra fruits of their labor and enterprise (217-219). Landes first notes that successful countries tend to be located in temperate regions and poorer countries, in the tropics. In other words, tropical climates are negative factors for human progress. Europe b...

How to write numbers, figures, dates and times - Emphasis

How to write numbers, figures, dates and times How to write numbers, figures, dates and times How good are you at watching your figures? These can be a crucial part of your document and the more clearly you express them, the better. Here are our guidelines for expressing time, money, statistics, data, dates and anything else involving numbers: 1. Write out numbers one to ten in words. 2. Use figures for 11 and above. 3. Avoid mixing words and figures in the same phrase. For example: You can order in multiples of 9, 12 or 16, not nine, 12 or 16. 4. Always use figures in data if decimals or fractions are involved: 6.25 or 6 1/4. 5. Write ordinals (first, second, third etc) in full, not 1st, 2nd, 3rd. 6. Write fractions in full and hyphenate them in the body of text eg two-thirds of the class. 7. Write thousands as 60,000, not 60K. 8. Use a comma for tens of thousands or more: 9000; 12,000; 50,000. 9. Write millions as 60 million or 60m, not 60,000,000. 10. File sizes should always be written as abbreviations eg 45Kb, or 1.8Mb. 11. A billion is a thousand million (1,000,000,000), not a million million. Write billions as 6 billion or 6bn, not 6,000,000,000. 12. Use per cent in running text (as opposed to tables etc.), not the % sign. 13. Use these forms rather that the 24-hour clock: 9.30am, 12 noon, 5pm, 12 midnight. 14. Write dates in this format: 7 September 2008. 15. Use twentieth century, not 20th century. 16. When indicating time span, use from/to, between/and or X-X. But dont mix and match: use from 9am to 5pm; or between 9am and 5pm; or 9am5pm. 17. If spanning dates in the same century, drop the first two digits of the second date. But keep them if the dates span different centuries: 196769, 19992008. 18. Do not use apostrophes for collective dates: 1990s, not 1990s. A few of these are issues of style rather than hard-and-fast rules. If youre not sure, or if you still have any questions on writing numbers, leave a comment and well get back to you.

Affirmative Action in the workforce Essay Example | Topics and Well Written Essays - 500 words

Affirmative Action in the workforce - Essay Example Though there are no legal requirements to hire unqualified people, opponents argue that affirmative action causes the minority to get a job over a more qualified worker. This logic has two flaws. One, the employer can choose many reasons to hire a ‘qualified’ applicant. It is an open and ambiguous term that can easily be largely ignored or manipulated to suit the employer’s possible racist tendencies. Another problem with the opponent’s argument is the previously discussed method of standardized testing. The quality of education a person receives doesn’t necessarily predict their future potential. Another argument by those opposed to affirmative action is that it disproportionately benefits middle and upper-middle class minorities, not the poor and working class people of color who need it most. A more careful examination of this criticism shows that affirmative action programs have benefited substantial numbers of poor and working class people of co lor. â€Å"Access to job training programs, vocational schools, and semi-skilled and skilled blue-collar, craft, pink-collar, police and firefighter jobs has increased substantially through affirmative action programs. Even in the professions, many people of color who have benefited from affirmative action have been from families of low income and job status† (Ezorsky, 1991, p. 64). Opponents point out that affirmative action is patently unfair to white males because they must pay for the past discriminations of people of a different era and mindset and may not get the jobs they might be more qualified for. These opponents are correct in that specific white people may be passed by for some job opportunities because of affirmative action policies and that they and their families suffer as a result. Proponents counter that the lack of employment opportunities is unfortunate and its causes are what the debate should be

Develop strategic HRM plans and policies for an organisation Essay

Develop strategic HRM plans and policies for an organisation - Essay Example The main aspects which are identified include areas of recruitment and selections, training and development, communication programs, performance management systems and even conflict management. Besides implementing fairness in all of the above HR aspects it is recommended that the organizations provides a common platform for all in which they could voice any problem faced with regards to diversity. Hurdle free communication channels, instant and continuous support from executives for resolving diversity issues and grievances handling are particularly recommended. Table of Contents Executive Summary 2 Introduction 4 HRM plans and policies for an organization operating in the global business environment 5 Conclusion and Recommendations 11 Bibliography 15 Introduction Today’s organizations seek to attain excellence through diversity. However, the term diversity is often seen to raise controversy, confusion and complication. However, despite the various severe implications of dive rsity, organizations continue to encourage diversity at the workplace. This is primarily applicable for the large and multinational organizations which have multinational presence across all corners of the globe. The word diversity immediately brings to mind the differences in race and ethnicity rather than gender of the workforce. In other words diversity is defined as those human qualities and characteristics which different between individuals and groups but are existent in the people outside the group. It is rather important to realize that the concept of diversity includes very many different dimensions apart from age, gender, race, geographic location, religious beliefs, work experiences etc. These dimensions have important implications for performance and productivity, success and motivation and interactions among employees in the organization. It is important that organizations use these dimensions to their use and advantage rather than focusing on their elimination. That is why managing diversity has emerged as a popular concept in organizational scenario today and is widely practiced in almost all organizations; the multinational organizations in particular. They accept the fact that diversity contributes to the richness of the organization and enhances the quality of organizational life for groups and individuals. Today’s organizations take pride in workforce differences and use them to their own benefit. The project seeks to make an analysis of the various dimensions of diversity in organizations and their implications in organizational life. Based on the analysis it developed human resource management policies and practices aimed at managing a diverse workforce in the global organizations. Specific recommendations are provided in the form of strategic HRM plans for an organization which is expanding its presence in the global market. HRM plans and policies for an organization operating in the global business environment Organizations workin g in the global market must strive to create a harmonious and inclusive environment as it enhances their reputation as being favorable recruiters and allows them to attract and retain the best talents from the industry. The main aspect of managing a diverse workforce is to provide employees with the feeling of inclusiveness, rewarded and valued despite their differences. This helps to motivate them and attain their maximum engagement at the workplace. In a survey

Literature Review About Cryptography And Steganography Computer Science Essay

Literature Review About Cryptography And Steganography Computer Science Essay The initial forms of data hiding can truly be considered to be extremely simple forms of private key cryptography, the key in this case being the information of the scheme being implemented. Steganography books are overflowing with examples of such schemes used all through history. Greek messengers had messages written into their shaved heads, hiding the message when their hair grew back. With the passage of time these old cryptographic techniques improved in context of optimization and security of the transmitted message. Nowadays, crypto-graphical methods have reached to a level of classiness such that appropriate encrypted interactions can be assumed secure well beyond the practical life of the information communicated. In reality, it is expected that the most powerful algorithms using multi KB key capacity could not be covered through strength, even if all the computing resources worldwide for the next 20 years were dedicated on the attack. Obviously the chances are there that weaknesses could be found or computing power advancement could occur, but existing cryptographic schemes are usually adequate for most of the users of different applications. So why to chase the area of information hiding? A number of good reasons are there, the first is that security through obscurity is not basically a bad thing, provided that it isnt the only security mechanism employed. Steganography for instance permits us to conceal encrypted data in mediums less likely to draw attention. A garble of arbitrary characters being communicated between two clients may give a clue to an observant third party that sensitive data is being transmitted whereas kid images with some extra noise present may not. Added information in the images is in encrypted form, but draws much lesser interest being allocated in the images then it would otherwise. This becomes mainly significant as the technological discrepancy between individuals and institutions grows. Governments and businesses usually have access to more powerful systems and better encryption algorithms then individuals. Hence, the possibility of individuals messages being broken increases with each passing year. Decreasing the quantity of messages intercepted by the associations as suspect will definitely facilitate to progress privacy. An additional benefit is that information hiding can basically alter the way that we consider about information security. Cryptographic schemes usually depend on the metaphor of a portion of information being placed in a protected box and locked with a key. Anyone can get access with the proper key as information itself is not disturbed. All of the information security is gone, once the box is open. Compare it with information hiding schemes in which the key is inserted into the information itself. This contrast can be demonstrated in a better way by current DVD encryption methods. Digitally encoded videos are encapsulated into an encrypted container by CSS algorithm. The video is decrypted and played when the DVD player supplies the proper key. It is easy to trans-code the contents and distribute it without any mark of the author present, once the video has been decoded. On the other hand the approach of an ideal watermark is a totally different, where regardless of encryption the watermark remains with the video even if various alteration and trans-coding efforts are made. So it is clarifies the need for a combination of the two schemes. Beginning with a swift tour on cryptography and steganography, which structure the foundation for a large number of digital watermarking ideas then moving on to a description that what are the prerequisites a watermarking system must meet, as well as techniques for estimating the strengths of different algorithms. Last of all we will spotlight on various watermarking schemes and the pros and cons of each. Even though most of the focus is solely on the watermarking of digital images, still most of these same concepts can straightforwardly be applied to the watermarking of digital audio and video. Background First of all we begin with some definitions. Cryptography can be described as the processing of information into an unintelligible (encrypted) form for the purposes of secure transmission. Through the use of a key the receiver can decode the encrypted message (decrypting) to retrieve the original message. Stenography gets better on this by concealing the reality that a communication even took place. Hidden Information message m is embedded into a harm less message c which is defined as the cover-obect. With the help of key k which is called as stego-key the hidden message m is embedded into c. The resulting message that is produced from hidden message m, the key k and the cover object c is defined as stego-object s. In an ideal world the stego-object is not distinguishable from the original message c, seems to be as if no additional data has been embedded. Figure 1 illustrates the same. Figure 1- Illustration of a Stegographic System We use cover object just to create the stego object and after that it is disposed. The concept of system is that stego-object will almost be same in look and data to the original such that the existence of hidden message will be imperceptible. As stated earlier, we will suppose the stego object as a digital image, making it clear that ideas may be expanded to further cover objects as well. In a number of aspects watermarking is matching to steganography. Each of them looks for embedding information into a cover object message with almost no effect to the quality of the cover-object. On the other hand watermarking includes the extra requirement of robustness. A perfect steganographic system would tend to embed a huge quantity of information, ideally securely with no perceptible degradation to cover image. A watermarking system is considered to be n ideal which would inject information that cannot be eliminated/modified except the cover object is made completely unusable. After these different requirements there is a reaction, a watermarking scheme will frequently deal capacity and perhaps even a little security for extra robustness. Then a question arises that what prerequisites might a perfect watermarking system should have? The primary constraint would obviously be that of perceptibility. A watermarking system is useless if it degrades the cover object to the extent of being of no use, or even extremely disturbing. In an ideal scenario the water marked image should give the impression of being identical from the original even if it is viewed on the best class device. A watermark, considered to be ideal, must be highly robust, exclusively resistant to distortion when introduced to unintended attack while normal usage, or a intentional efforts to immobilize or eliminate the embedded watermark ( planned or malicious attack ). Unpremeditated attacks include alterations that are usually implemented to images while usual usage, such as scaling, contrast enhancement, resizing, cropping à ¢Ã¢â€š ¬Ã‚ ¦etc. The most interesting form of unintended attack is image compression. Lossy compression and watermarking are naturally at contrasts, watermarking try to encode hidden data in spare bits that compression tends to eliminate. So perfect watermarking and compression schemes are likely naturally restricted. In malicious attacks, an attacker intentionally attempts to remove the watermark, frequently via geometric alterations or by embedding of noise. A last thing to keep in mind is that robustness can consist of either flexibility to attack, or complete delicateness. It is the case in which various watermarking schemes may have need of the watermark to entirely demolish the cover object if any tampering is made. One more characteristics of ideal watermarking scheme is that it apply the implementation of keys to guarantee that the technique is not rendered ineffective the instant that the algorithm turns out to be recognized. Also it should be an aim that the method makes use of an asymmetric key scheme such as in public / private key cryptographic systems. Even though private key techniques are quite simple to apply in watermarking not like asymmetric key pairs which are normally not quite simple. The possibility here is that inserted watermarking scheme might have their private key found out, tarnishing protection of the whole system. It was just the scenario when a particular DVD decoder application left its secret key unencrypted, violating the whole DVD copy security system. A bit less essential necessities of a perfect watermarking scheme might be capacity, and speed. A watermarking scheme must permit for a helpful quantity of information to be inserted into the image. It can vary from one single bit to several paragraphs of text. Additionally, in watermarking schemes destined for embedded implementations, the watermark embedding (or detection) shouldnt be computationally severe as to prevent its use on low cost micro controllers. The final probable constraint of a perfect watermarking scheme is that of statistical imperceptibility. Watermarking algo must adjust the bits of cover in an approach that information of the image are not altered in any telltale style that may deceive the existence of the watermark. So it is not relatively lesser essential constraint in watermarking as compared to steganography but few applications might need it. Then how to provide metrics for the assessment of watermarking methods? Capacity and pace can be simply estimated using the # of bits / cover size, and calculational complications, respectively. Use of keys by systems is more or less by characterization, and the informational indistinguishable by association among original images and watermarked equivalent. The other complicated assignment is making metrics for perceptibility and robustness available. Standards proposed for the estimation of perceptibility are shown as in Table. Level of Assurance Criteria Low Peak Signal-to-Noise Ratio (PSNR) Slightly perceptible but not annoying Moderate Metric Based on perceptual model Not perceptible using mass market equipment Moderate High Not perceptible in comparison with original under studio conditions High Survives evaluation by large panel of persons under the strictest of conditions. Table Possible assurance stages of Perceptibility Watermark must meet exposed minimum requirements the Low level in order to be considered handy. Watermarks at this stage should be opposing to general alterations that non-malicious clients with economical tools might do to images. As the robustness enhances more specific and expensive tools turn out to be needed, in addition to extra intimate information of the watermarking scheme being used. At the very top of the scale is verifiable dependability in which it is also computationally or mathematically unfeasible to eliminate or immobilize the mark. In this chapter a brief introduction of the background information, prerequisites and assessment methods needed for the accomplishment and estimation of watermarking schemes. In the next chapter a variety of watermarking techniques will be narrated and will be considered in terms of their potential strengths and weaknesses. Selection of Watermark-Object The most basic query that is required to think about is that in any watermark and stenographic scheme what sort of form will the implanted message will have? The most simple and easy consideration would be to insert text string into the image, permitting the image to straightly hold information such as writer, subject, timeà ¢Ã¢â€š ¬Ã‚ ¦and so on. On the other hand the negative aspect of this technique is that Ascii wording in a way can be well thought-out to be a appearance of LZW compression technique in which every character being characterized with a definite model of bits. Robustness of the watermark object suffers if compression is done prior to insertion. As the structure of Ascii systems if a single bit fault is occurred due to an attack can completely alter the semantics of a certain letter and thus the hidden message is also changed or damaged. It would be fairly trouble-free for even a simple assignment such as JPEG compressing technique to trim down a copy right string to a random set of typescript. Instead of characters, why not embed the information in an already highly redundant form, such as a raster image? Figure 2 Ideal Watermark-Object vs. Object with Additive Gaussian Noise Note that in spite of the huge quantity of faults made in watermark discovery, the extracted watermark is still extremely identifiable. Least Significant Bit Modification The most uncomplicated technique of watermark insertion, is considered to be to embed the watermark into the least-significant-bits (LSB) of the cover object .Provided the surprisingly elevated channel capacity of using the whole cover for communication in this process, a smaller object may be embedded several times. Even if many of them are vanished due to attacks, only a one existing watermark is considered to be a success. LSB replacement though in spite of its straightforwardness brings a crowd of weaknesses. Even though it may continue to exist if alterations such as cropping, noise addition or compression is probable to overcome the watermark. And an enhanced tamper attack will be basically to replace the lsb of every pixel by 1, completely overcoming the watermark with minor effect on the original image. In addition, if the algorithm is found out, the inserted watermark could be simply altered by an intermediary party. An enhancement on fundamental LSB substitution will be to apply a pseudo-random digit initiator to decide the pixels to be utilized for insertion supported on a provided seed . Protection of the watermark will be enhanced as the watermark could not be simply observed by middle parties. The scheme still would be defenseless to the replacement of the LSBs with a constant. Also if those pixels are used that are not utilized for watermarking bits, the effect of the replacement on the image will be insignificant. LSB alteration seems to be an easy and reasonably potent instrument for stenography, but is deficient of the fundamental robustness that watermarking implementations require. Correlation-Based Techniques An additional procedure for watermark insertion is to make use of the correlation characteristics of additive pseudo random noise patterns as applied to an image. A pseudorandom noise (P) pattern is embedded to the image R(i, j), as mentioned in the formula shown below. Rw (i, j) = P (i, j) + k * Q(i, j) Insertion of Pseudorandom Noise k represents a gain factor Rw is the watermarked image. Amplifying k amplifies the robustness of the watermark at the cost of the excellence of the watermarked image. To retrieve the watermark, the same pseudo-random noise generator algorithm is seeded with the same key, and the correlation between the noise pattern and possibly watermarked image computed. If the correlation exceeds a certain threshold T, the watermark is detected, and a single bit is set. This method can easily be extended to a multiple-bit watermark by dividing the image up into blocks, and performing the above procedure independently on each block. In different of ways this fundamental scheme can be enhanced. 1st, the concept of a threshold being utilized for defining a binary 1 or 0 can be removed with the utilization of two different pseudorandom noise sequences. One sequence is allocated a binary 1 and the second a 0. The scheme which is mentioned previously is then carried out one time for every sequence, and the sequence with the superior resulting correlation is exercised. It amplifies the possibility of a accurate discovery, still after the image has been considered to attack . We can additionally enhance the technique by prefiltering image previous to implementing the watermark. If we can decrease the correlation among the cover image and the PN pattern, we can amplify the resistance of the watermark to extra noise. By implementing the edge improvement filter as given below, the robustness of the watermark can be enhanced with no loss of capability and with a very less lessening of image features. Edge Enhancement Pre-Filter Instead of defining the watermark values from blocks in the spatial domain, we can make use of CDMA spread spectrum Schemes to spread every of the bits arbitrarily all over the original image, amplifying capability and enhancing immunity to cropping. The watermark is initially converted into a string instead of a 2 dimensional image. For every single pixel value of the watermark, a PN pattern is produced by making use of an self-sufficient key or seed. These keys or seeds could be stocked or created by itself via PN techniques. The addition of every one of the PN sequences stands for the watermark, which is then up sized and embedded to the original image . To discover/extract the watermark, every seed/key is utilized to produce its PN pattern, which is after that correlated with the whole image. If it results with high correlation, then a bit of a watermark is assigned as 1, else 0. The same procedure is done again and again for each and every value of the watermark. CDMA enhances on the robustness of the watermark considerably, but needs quite a few sequences further of calculation. Frequency Domain Techniques A benefit of the spatial domain methods has been talked about previously is that it can be simply implemented to any image, in spite of several type of intentional or unintentional attacks (though continuation to exist this alterations is totally a diverse issue). A probable drawback of spatial methods is that utilization of these subsequent alterations with the aim of amplifying the watermark robustness is not permitted by them. Besides to this, adaptive watermarking schemes are a little extra tricky in the spatial domain. If the characteristics of the original image could correspondingly be utilized both the robustness and quality of the watermark could be enhanced. For the moment, instead of detail areas it is usually favorable to conceal watermarking data in noisy areas and edges of images. The advantage is 2 fold; it is extra perceivable to the HVS if degradation is done in detail areas of an image, and turns out to be a primary objective for lossy compression rechniques. In view of these features, making use of a frequency domain turns out to be a bit more attractive. The traditional and yet well accepted domain for image processing is the Discrete-Cosine-Transform (DCT). The Discrete-Cosine-Transform permits an image to be divided into different frequency bands, which makes it simple and easy to embed watermarking message into the mid frequency bands of an image. The reason behind selecting the middle frequency bands is that they have reduced even they evade low frequencies (visual areas of the image) exclusive of over-rendering themselves to elimination via compression and noise attacks (high frequencies). One of the methodologies makes use of the relationship of middle frequency band of DCT variables to encrypt a bit into a DCT block. Following 88 block shows the division of frequencies in terms of low, middle and high bands. DCT Regions of Frequencies FL represents the low frequency section of the block, whereas FH represents the higher frequency section. FM is selected as the region where watermark is embedded so as to give extra immunity to lossy compression schemes, at the same time evading noteworthy amendment of the original image . Then two positions Ai(x1, y1) and Ai(x2, y2) are selected from the middle frequency band area FM for evaluation. Instead of selecting random positions, if our selection of coefficients is according to the suggestion of JPEG quantization we can attain additional toughness to compression as given in the chart below. We can think positive that some sort of scaling of a coefficient will increase the other by the equal aspect if two positions are selected such that they have similar quantization values, which helps in maintaining their comparative ratio of size. 16 11 10 16 24 40 51 61 12 12 14 19 26 58 60 55 14 13 16 24 40 57 69 56 14 17 22 29 51 87 80 62 18 22 37 56 68 109 103 77 24 35 55 64 81 104 113 92 49 64 78 87 103 121 120 101 72 92 95 98 112 100 103 99 JPEG compression scheme quantization values By observing the above chart we can see that coefficients (4,1) and (3,2) or (1,2) and (3,0) would formulate appropriate contenders for contrast as we can see that there quantization values are similar. The DCT block will set a 1 if Ai(x1, y1) > Ai(x2, y2), else it will set a 0. The coefficients are then exchanged if the associative size of every coefficient does not agree with the bit that is to be encoded . Because it is usually considered that DCT coefficients of middle frequencies contain analogous values so the exchange of such coefficients should not change the watermarked image considerably. If we set up a watermark strength constant k, in a way that Ai(x1, y1) Ai(x2, y2) > k then it can result in the enhancement of the robustness of the watermark. Coefficients that do not meet these criteria are altered even if the utilization of arbitrary noise then convinces the relation. Mounting k thus decreases the possibility of finding of errors at the cost of extra image degradation. An additional probable method is to insert a PN string Z into the middle frequencies of the DCT block. We can alter a provided DCT block p, q by making use of equation below. Embedding of Code Division multiple access watermark into DCT middle frequencies For every 88 block p,q of the image, the DCT for the block is initially computed. In that block, the middle frequency elements FM are incorporated to the PN string Z, multiply it by k the gain factor. Coefficients in the low and middle frequencies are copied over to the converted image without having any effect on. Every block is then contrary converted to provide us our concluding watermarked image OZ .

Creon Character Trait Essay

The Greek tragedy Antigone, by Sophocles, introduces characters that can be described as tragic heroes. This tragedy has the character face with a dramatic reconciliation. Creon, one of the main characters in the play, is a major tragic hero because of his personal characteristics and the actions he made. There were three specific characteristics that can be explained to describe Creon’s personality. He was ignorant, rude and insecure. Creon had a natural habit of being ignorant of others. He refuses to notice other people’s opinion, advice and point of view. Creon believes that since he was the king, he had the right to make decisions without bothering to discuss it with others. Creon refuses to listen to the wise words of Teiresas about letting Antigone bury Polynecies. He does not follow the advice soon enough and suffers with a catastrophe of the death of his beloved son and wife. This fully shows Creon being ignorant considering the fact that Teiresas’ guidance is always the finest and is taken by many other kings. Another example of Creon being ignorant in this tragedy is when Haemon gently persuades his father that arresting Antigone would not be the best decision, especially since he is engaged to her. But Creon refuses to listen and does not realize there is a significant relationship between his son and Antigone. He just follows through with what he thinks is right. He also does not take notice to the point of view of the citizens of Thebes and how they disagreed to that fact of Polynecies not being buried. Considering he is the king, everyone’s expectation is that he would listen to the citizens of the country, but Creon’s ignorant behaviour doesn’t let him do the right thing. The realization to overcome his ignorance does not come in soon enough to save his family. Another character trait the King of Thebes has is his show of rudeness. Creon had an egoistic way of seeing things. One example of him being rude was when he accused Teiresas of accepting bribery because Creon just can’t accept it when Teiresas tells him that nature itself is rebelling against Creon’s double sacrilege. Accusing the seer of bribery is disrespectful because, he only said that for his own benefit of believing he was right and Teiresas was wrong. Teiresas was a seer and therefore deserved more respect than what he was given. Creon was being self-absorbed and not seeing that Teiresas was trying to help him. Creon’s verbal language likewise is very hurtful to others. When Haemon talks to Creon about Antigone, Creon says â€Å"If she’s a bitch, you’ll feel a coldness as she lies beside you. Can there be anything worse than giving your love to a bitch that doesn’t deserve it?† (pg17). Considering the fact that Haemon was engaged to Antigone, and Antigone is Creon’s niece, this was a rude remark for Creon to make. He had no respect for the relationship between them. While speaking with Antigone, Creon also added, â€Å"Oh, go to hell, -you and your marriage with you†. Many of the times, Creon would make rude remarks about others without realizing the affect of his words. One of the main reasons Creon had so much arrogance was because of the insecurity hiding underneath his personality. Even though he seemed powerful on the outside with all his fame as being a king, he was in reality, insecure. This tragic flaw leads to the death of many people and also to his own downfall. Creon feels everyone is not in favour of him and therefore takes actions so people can take him more seriously. He takes actions so people would get the point that he is not somebody to be taken advantage of. An example in the play can be seen when Creon disregards other’s advice. When he refuses to listen to Teiresas’ advice, he is too insecure to even realize that the guidance given was principled. When Creon finally came to the realization of what he had done, it was too late; his insecurity had already destroyed him. All of these characteristics of Creon had a massive impact on the outcome of the plot of the play. Creon’s ignorance, his rudeness and insecurity led him to take actions that were not always right. It leads to his own suffering and the suffering of others. When realization finally hits him, it is too late to save his family members from losing their lives. In the final scene he blames himself for all the tragedies.