• The Science & Technology
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• v.7 no.1 s.56
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• pp.35-35
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• 1974

• The Science & Technology
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• v.16 no.11 s.174
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• pp.22-24
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• 1983

- 국제화학생태학회 창립 - 컴퓨터로 흑백필름을 컬러화 - 새로운 인공혈액 - 유기컴퓨터는 부피가 100만분의1 - 야구선수와 심리치료 - 수소자동차 개발 - 토성에도 천둥이 있다 - 뇌의 크기는 한계가 있다

• The Journal of the Korea Contents Association
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• v.15 no.12
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• pp.97-105
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• 2015

In the history of photograph, after the development of color photographs, those with multiple colors and high definition has gradually become the mainstream works in the field of photography. In the modern society of China that has been through reform and opening up, people's minds were increasingly liberated to widely accept color photos in terms of photography. Furthermore, the broad penetration of digital photography has brought together a new trend in the field of black-and-white photography. In line with this trend, more black-and-white photographs have appeared which are different from existing ones in the film-based period. In this recognition, the study seeks to compare the black-and-white documentary photograph works of Chinese photographers and analyze the modern Chinese black-and-white photographs.

• Journal of the Korea Computer Graphics Society
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• v.14 no.3
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• pp.1-9
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• 2008

This paper presents a novel optimization-based saliency-preserving method for converting color images to grayscale in a manner consistent with conventional approaches of black-and-white photographers. In black-and-white photography, a colored filter called a contrast filter has been commonly employed on a camera to lighten or darken selected colors. In addition, local exposure controls such as dodging and burning techniques are typically employed in the darkroom process to change the exposure of local areas within the print without affecting the overall exposure. Our method seeks a digital version of a conventional contrast filter to preserve visually-important image features. Furthermore, conventional burning and dodging techniques are addressed, together with image similarity weights, to give edge-aware local exposure control over the image space. Our method can be efficiently optimized on GPU. According to the experiments, CUDA implementation enables 1 megapixel color images to be converted to grayscale at interactive frames rates.

• Proceedings of the Korea Contents Association Conference
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• 2006.11a
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• pp.322-326
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• 2006

Though human being has ability to percept a full colored vision, the technology of early photography only can produce black and white images. For cinema filming imagery also captured mono tone with black and white, until developed a color film technology. The desire for presenting color imagery and the technique for producing film and color ink, photography and print utilize color on it with noticeable color impact to viewers. It, however, abusing fun colors image each and every printed and filmed imagery, the freshness of eye catching power diminished now. On contrast, color becomes black and white or partially used for making discrepancy among full colored images. This image detected commercial and music video, and it spread to film. To use those bleached color images is for evoking a nostalgia and a visual differentiation. Especially, it can be provocative images brought to audience with that. such as "Anycall", "Dimchae" for CF, and "Schindler's list," and "Sin city" for movie. It is hard to investigate on the color studies for partially used images. Therefore, this study is to research that through CF and film, base on it, to investigate the application for this image. To collect data from survey, it will be established a basic concept for understanding the partial color applying.

• Proceedings of the KSRS Conference
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• 2006.03a
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• pp.19-23
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• 2006

본 연구는 컬러항공사진을 이용하여 컬러영상, 그레이영상 그리고 각 밴드별(RGB) 수치고도모형(DEM)을 생성하여 정확도를 평가하기 위한 것이다. 항공 영상지도의 경우 불과 4-5년 전까지만 해도 흑백항공사진 필름을 이용해 왔으나 최근 들어 판독을 더욱 용이하게 하기 위하여 컬러항공사진을 많이 이용하고 있다. 품질이 높은 정사영상제작을 위해서는 정확한 수치고도모형이 필요하다. 수치고도모형을 생성하기 위한 대표적인 방법으로 수치지도를 이용하는 방법과 영상정합기법을 이용하여 수치고도모형을 생성할 수 있다. 영상정합기법에 의한 수치고도모형 생성 방법은 흑백항공사진에서와는 달리 컬러항공사진은 항공사진 전용 스캐너에서 3개의 밴드(RGB)로 스캔된 영상을 사용한다. 본 연구에서는 수치고도모형의 정확도를 분석하기 위하여 모두 5가지 영상(컬러영상, 그레이영상, Red 영상, Green 영상, Blue 영상)을 획득하였으며 각 밴드별 수치고도모형을 생성하여 수치지도에서 추출된 표고점 자료와의 평균제곱근오차(RMSE) 값을 비교하였다. 본 연구에서는 Red 영상을 이용하는 경우 가장 정확한 수치고도모형을 얻을 수 있었음을 실험을 통해 검증하였다.

• Journal of Bio-Environment Control
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• v.22 no.2
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• pp.81-86
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• 2013

This experiment was carried out to select white asparagus varieties suitable for shading culture in greenhouse. Eight white and one green varieties were tested. Seeds were sown in 72-cell trays in a glasshouse on 24 Dec. 2008 and the seedlings were transplanted in a P.E house on 22 May 2009. Planting distances were 30 cm apart in a raw and 125 cm between the raws. For white asparagus production, small tunnel ($210cm{\times}160cm$) was established inside the P.E house, and covered with black and white P.E film (0.1 mm) on 5 March 2010. Days to sprouting took 5 days in 'Ravel' variety and took 16 to 18 days in 'Backlim', 'Horlim', 'Herkolim' varieties. The number of spear was highest in 'Ravel' with 6 and lowest in 'Backlim' with 3.7. The spear weight was heaviest in 'Herkolim' with 25.6 g and lightest in 'Ravel' with 15.6 g. The highest total yield was in 'Herkolim' with 296 kg/10a, followed by 'Super welcome' with 275 kg/10a and lowest in 'Rapsody' with 176 kg/10a. Marketable yields in 'Super welcome' and 'Herkolim' were 241 kg/10a and 239 kg/10a, respectively, and the yield was lowest in 'Rapsody' with 139 kg/10a. The L grade (over 20 g of spear weight) was highest in 'Herkolim'. Accordingly, 'Herkolim' was the most suitable white asparagus variety among the tested varieties for shading cultivation in greenhouse.

• Korean Journal of Optics and Photonics
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• v.13 no.2
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• pp.117-122
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• 2002

Some 10$\times$10 micro-lens arrays of a period of 300 ${\mu}{\textrm}{m}$, a thickness of 17 ${\mu}{\textrm}{m}$, and a focal length of 2.2 mm are fabricated by exposing a thick layer of photoresist through a grayscale mask via UV proximity printing. The grayscale mask is fabricated in a holographic film by reducing (6.6X) a high-resolution black-and-white film where a grayscale patters of a micro-lens array designed by a computer has been written using a film recorder. The proposed method has the advantage of a low fabrication cost, a fill-factor of almost 100% and the ease of realizing an aspheric lens.

• Proceedings of the Korea Contents Association Conference
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• 2014.11a
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• pp.175-176
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• 2014

영화<씬 시티>는 프랭크밀러 원작의 만화 '씬 시티'를 영화로 만든 작품이다. 흑백영상과 조명, 원색의 컬러와 뒤에 배경을 컴퓨터그래픽으로 배치함으로써 표현주의를 바탕으로 한 필름 느와르 장르와 원작의 컷을 사용하여 그래픽 노블 이미지를 영상으로 연출하였다. <씬 시티>를 분석하여 이를 통한 영상 미학적 특성과 비쥬얼 스토리텔링에 대해 살펴 볼 수 있는 연구라 사료된다.

• The Journal of the Korea Contents Association
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• v.10 no.7
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• pp.40-48
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• 2010

Reflected-Ultraviolet photography is applied to the evidence of crime, Archaeology, and Dermatology. In the past, Ultraviolet photography was done with standard black-and-white film. Because emulsion of film is more sensitive to near UV light than CCD(Charge Coupled Device) or CMOS(Complementary Metal-Oxide-Semiconductor)of digital camera. In this research, we purpose to improve qulity of ultraviolet photographs and to find out the best alternative digital camera by utilizing a cunsumer digital camera. To achieve theses, we removed IR cutoff filter from digital camera. And by using modified UV pass filter, we verified the increase of image resolution of digital ultraviolet photographs. Also, we analyze reproducibility of digital ultraviolet photographs according to type, size, pixel of image sensor. Furthermore, this research resulted in the development of an practical digital camera system by utilizing a cunsumer digital camera. Eventually, it will contribute to practical use in the various field of digital ultraviolet photographs