• Journal of the Korean Graphic Arts Communication Society
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• v.20 no.1
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• pp.146-158
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• 2002

JPEG is good for full color representation but is poor in quality of image because of the small size and the losing compression ways. GIF is a kind of format style made for image - transmission in Compuserve which is a method of PC communication in U. S. A and now is used in world wide web owing to the efficiency of file compression and transmission. But GIF only is used 256 colors, so the images in web has a poorer quality of colors effect to be compared with those of printed catalogues. Also there can be licence problems when the images is used for commercial uses because the possession is Compuserve. The PNG is a way that the total advantages of JPEG and GIF. PNG image file is a more skillful (bitmap display unit), shows a high quality image like TIFF image about, gives superior compression , a 10% to 30% represents full color, 256 color, gray like JPEG. GIF file which uses LZW compression file is a thing which pays licence, In other hands, PNG is free from licence and more skillful image processing method against image error, and it is possible to conserve the color information. Therefore, this treatise is about how various images which are utilized for commercial printings in web, can be made into PNG files about the compression file. And the representation of image by compared the G]U images with JPEG images as well as compression file and the representation of image the superiority of color representation. In addition, 1 check out how much ranges the PNG files are available for electronic publish printing.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2002.11a
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• pp.323-326
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• 2002

In this paper, we propose the new experimental using gif tunneling based on IPv4 and IPv6. HVIC developed by ETRI-SNU and vic, net by UCL in England were used during the tests. The networks used in this experiments are TEIN (TEIN:TransEurasia Information Network) that recently established between Korea and Europe and ATM-based IPv6 native network which connecting among ETRI, KOREN, SNU. We take following three scenarios into account. The one is the IPv6 tunneling based on IPv4, the other is IPv6 tunneling on IPv6 network, and the third is IPv6 native network based on ATM we propose the new experimental method using gif tunneling between IPv4 and IPv6.

• The Bulletin of The Korean Astronomical Society
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• v.32 no.2
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• pp.74.2-74.2
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• 2007

• Journal of The Korean Society of Clinical Toxicology
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• v.10 no.2
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• pp.122-125
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• 2012

Alocasia was originally distributed throughout subtropical and tropical areas. Recently, in Korea, it has been used in air cleaners and in control of humidity. Despite easy access in Korea, there are few reports on Alocasia toxicity. We report on two cases of Alocasia intoxication. One patient was a 16-month-old male, who was admitted with a complaint of irritability after biting leaves of Alocasia. Four hours later, he was discharged without any symptoms. Another patient, a 52-year-old female, complained of oral pain, numbness on the perioral area, dysphonia, swallowing difficulty, and chest and abdominal pain after eating root stuck of alocasia odora. She underwent gastrointestinal fibroscopy (GIF) due to lasting chest and abdominal pain. Finding on GIF showed erythema and swelling in the aryepiglottic fold and larynx. Her symptoms lasted 13 days; she was then discharged without any complications or sequelae.

• Proceedings of the Korean Information Science Society Conference
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• 2003.04d
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• pp.229-231
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• 2003

기존의 아바타 시스템은 GIF 파일 기반으로 한정된 아바타 캐릭터를 이용하여 다양한 표현이 제한적이었다면 SVG 파일을 기반으로 하는 아바타 시스템의 경우 사용자가 능동적으로 아바타를 수정할 수 있어 다양한 아바타 캐릭터를 만들 수 있는 장점이 있다. 또한 기존 시스템은 아바타를 위한 GIF파일의 구성 정보만 유지하고 있었다면 SVG 파일 기반의 아바타 시스템의 경우 각 사용자별로 아바타를 표현하는 별도의 SVG 파일을 가지며. 사용자가 각 개인의 아바타를 수정함으로서 갱신 연산이 빈번하게 발생한다. 이에 효과적인 갱신 연산을 수행하는 SVG 파일을 저장하는 저장소가 필요하다 SVGStore는 각각의 아바타에 대응하는 SVG 파일을 저장하고 빈번한 갱신 연산을 효율적으로 제공한다.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.8 no.1
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• pp.25-30
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• 2008

In this paper, we propose a color quantization method regarding facial image for mobile services. For facial images, skin colors are more emphasized. First, we extract skin-color mask in the image and divide the image into two regions. Next, we extract color pallette for two regions respectively. In the proposed method, the loss in the face region is minimized and it can be useful for mobile services considering facial images. From the 8-bit color quantization experiment, we show that the proposed method works well.

• Nuclear industry
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• v.24 no.9 s.259
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• pp.15-21
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• 2004

• Bulletin of the Korean Chemical Society
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• v.23 no.9
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• pp.1331-1332
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• 2002

• Bulletin of the Korean Chemical Society
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• v.18 no.4
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• pp.362-363
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• 1997

• The Transactions of the Korean Institute of Electrical Engineers D
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• v.54 no.8
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• pp.501-503
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• 2005

In this paper, using ranks of co-occurrence frequency about indices in pairs of neighboring pixels, we introduce a new re-indexing algorithm for efficiency of index color image lossless compression. The proposed algorithm is suitable for arithmetic coding because it has concentrated distributions of small variance. Experimental results proved that the proposed algorithm reduces the bit rates than other coding schemes, more specifically $15\%$, $54\%$ and $12\%$ for LZW algorithm of GIF, the plain arithmetic coding method and Zeng's scheme, respectively.