• Journal of Korea Society of Industrial Information Systems
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• v.20 no.3
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• pp.29-36
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• 2015

Steganography is the technique of hiding the existence of a secret message that is communicated hiddenly. Generally, the main objectives of this paper is to develop newer and more sophisticated steganographic techniques based on perceptual transparency, robustness and capacity of the hidden data. This paper analyzes the advantages and disadvantages of image steganography techniques and proposes an effective method. As a result, the images steganography technique based on good ELSB and DCT which applies the rearranged key is secure and effective.

• Journal of Advanced Navigation Technology
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• v.13 no.2
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• pp.257-261
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• 2009

This paper propose a new method using Gestalt theory to extract image contour. The proposed method use Gestalt theory based on proximity, similarity and continuation for grouping objects from image segmentation. It use downward feedback and perception to materialize one visual level in image from heterogeneity visual levels in image. The experimental result show that the proposed method achieves better performance than other methods.

• The Journal of the Korea Contents Association
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• v.9 no.2
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• pp.423-431
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• 2009

This study which sees analyzes the tourist resort image affects in tourist attitude and this leads and there is the goal the fundamental data of tourist resort marketing strategic establishment provides. According to research result demographics quality the tourist resort image there was a difference to recognition, the tourist resort image was analyzed with the fact that affects in tourist attitude. The research which sees the tourist resort image affects with the scholastic questionable matter which analyzes the thing provided fundamental information a together the tourist resort marketing people in charge for new marketing strategic establishment to tourist attitude a practical questionable matter has.

• Journal of the Korean Society for Library and Information Science
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• v.36 no.3
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• pp.25-47
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• 2002

This study is an attempt to explore the professional image of librarianship through librarians' subjectivity using Q-methodology based on intraindividual difference in significance. The study identified four types of the professional image of librarianship and discussed their relationship; the ambivalent, the prideful, the advanced, and the critical. Each types are unique, not inter-exclusive characteristics reflected the context of the present. Also, all types have a positive image toward the librarianship.

• Asia Marketing Journal
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• v.13 no.4
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• pp.191-212
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• 2012

With the introduction of the Capital Market Integration Act in 2009, the new competitive scope and paradigm is opened in Korean financial services market. The change of financial industry and institutions will lead to the behavioral change of customers who consume and choose financial services. While researches from the financial perspective have been conducted, works from the marketing or customer oriented approach has long been relatively ignored. The purpose of this study is to investigate influencing factors and process of financial services customers' choice behavior. More specifically, the main theme is how to enhance customer brand loyalty and purchase intention through the perception of overall quality of the service product. An integrated conceptual model including antecedents, mediating variables and consequences is established through comprehensive literature reviews of extant works on environmental change, customer behavioral change and choice behaviors. Hypothesis testing is done with SEM analysis. According to the results, the attractiveness of financial product, the reputation of financial firm, and self-brand image congruence among exogenous variables make a positive effect on perceived overall quality. And perceived overall quality has a significant effect on brand loyalty.

• Journal of the Korea Convergence Society
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• v.9 no.7
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• pp.185-191
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• 2018

The digital technologies brought a structural transformation to cinema, have lead a change in the way of existence of an assembly of images called cinema, and have shared expression methods with new-media. To look into how in terms of cinema style of the film era and the digital era are different, this article will focus on the matter of 'indexicality.' From the point of view of perceptive realism the discourses on digital image deconstruct the dichotomy between illusionism and classical realism. Therefore the actuality of an image does not depend on only indexicality but has much to do with how the viewers fundamentally perceive the image. In this age of digital cinema it does not matter to distinct a composite-image from a reality-image. This article inquires the relation of indexicality, the world and digital images in digital cinema on the level of reception, and reconsider in terms of image production.

• The Journal of the Korea Contents Association
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• v.17 no.8
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• pp.1-13
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• 2017

In this paper, a research model was designed to investigate the factors influencing the intention to use of mobile easy payment services in China. Our research model includes the service factors(instant connectivity, economic and security), social factors(subjective norms and image), the user's individual factors(self-efficacy personal innovativeness and suitability), perceived ease of use, perceived usefulness and intention to use. A survey was conducted to collect the data with users who have had the actual using experience about mobile easy payment services. In this research, the data were collected by online survey, and in final analysis, 439 users' questionnaires were used. The empirical paper proves research hypothesis by using SPSS 22.0 and AMOS 23.0. The results of the study are as follows: the mobile easy payment service factors, social factors and the user's individual factors partially give positive effects to perceived ease of use and perceived usefulness; perceived ease of use gives positive effects to perceived usefulness. In addition, perceived ease of use and perceived usefulness have positive effects to on intention to use.

• The Journal of Korean Association of Computer Education
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• v.10 no.1
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• pp.77-88
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• 2007

More flexible learning models are needed, and learning environments that operate through mobile technologies such as portable multimedia players(PMP) provide useful tools in implementing these learning models. The main attractant of PMP is often their versatility: being able to load and play different formats of video, audio, digital images, and interactive media. In this paper, we investigate the factors influencing the usage and acceptance of the PMP for study, based on the extended version of the Technology Acceptance Model (TAM). Based on data collected from online survey, we show that perceived usefulness, perceived ease of use, flow and perceived enjoyment are the major determinants for users to play PMP for study purpose. Factors, including ease of use, contents-credibility are shown to determine the level of perceived usefulness; additionally, perceived usefulness, ease of use and perceived enjoyment are shown to directly affect the level of flow. Based upon the statistical results, some useful guidelines for developing learning contents are also provided.

• Korean Journal of Cognitive Science
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• v.16 no.3
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• pp.175-188
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• 2005

Recently, Li, Brenner, Cornelissen and Kim (2002) reported that 2D shape perception during pursuit eye movement just reflected the retinal image, and this result implies that the visual system ignored the extra-retinal information. In reality, however, we usually do not experience the perceptual distottion of 2D shape during pursuit eye movement. One Possibility is that the visual system night exploit the fact that the relative location between objects on retinal image is constantly maintained even during pursuit eye movement. The present research examined this possibility. Interestingly, perceptual distortion of 2D shape was observed even in the presence of reference, however, the amount of distortion decreased compared to when the reference does not exist. The distance between the reference and the target affected the perceptual distortion. These results imply that reference information is used in 2D shape perception during pursuit eye movement but it cannot completely explain the stable and accurate representation of 2D shape perception during pursuit eye movement.

• Journal of the Korean association of regional geographers
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• v.10 no.1
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• pp.96-109
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• 2004

Applying the construct of country image this study examined city image for Daegu in Korea. Study 1 measured the city image for Daegu and Seoul, identified the city image dimensions, and compared the images of the two cities. Study 2 confirmed the city image dimensions and examined the Daegu image by residency and demographic characteristics of respondents in Daegu and Seoul regions. The study extracted 4 dimensions of city image including economy, people, conservatism, and development capability. High conservatism and low economic prosper represented the image of Daegu while the opposite did of Seoul. Regardless of residency, single and Young respondents with high income and education had negative images for Daegu, and residents in Daegu rather than in Seoul had more negative images.