• 제목/요약/키워드: Spot Color

검색결과 199건 처리시간 0.03초

CMS를 사용한 별색 교정에 관한 연구 (A Study on Spot Color Proofing using ICC-based Color Management System)

  • 정청숙;강상훈
    • 한국인쇄학회:학술대회논문집
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    • 한국인쇄학회 2007년도 추계 학술논문 발표회
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    • pp.65-73
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    • 2007
  • The general commercial printing meets the customer's diverse demand by using spot color besides process four color. Especially, by using spot color for printing the enterprise's logo or specific color, we can see the effect of printing is getting better. The objective of this study was to examine the quality of spot color reproduction with Inkjet for 2 types of paper and Dye sublimation in ICC-based color management system. ICC profiles were generated for each device using ECI 2002 visual target and evaluated for the accuracy of each printer's color profile. The test chart consisting of Pantone color 1140 was selected to test the quality of spot color reproduction.

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ICC 기반의 컬러 매니지먼트 시스템을 사용한 별색 교정에 관한 연구 (A Study on Spot Color Proofing using ICC-based Color Management System)

  • 정청숙;강상훈
    • 한국인쇄학회지
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    • 제25권1호
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    • pp.81-94
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    • 2007
  • Recently, the trend in the printing industry includes shorter run lengths and with fast turnaround times. As new markets have made it possible to produce small quantities of high-quality color products at affordable price, the general commercial printing meets the customer's diverse demand by using spot color besides process four colors. Especially, by using spot color for printing the enterprise's logo or specific color, we can see the effect of printing is getting better. With the combination of the right software, ink, media, and device can be treated as a digital proofer for spot color printing, providing significant time and cost savings compared to conventional procedures. The objective of this study is to investigate the quality of spot color proofs printed by ink-jet and dye sublimation proofer using ICC-based color management system. An Epson Stylus Color 3000 ink-jet proofer combined with Best Color Proof XXL RIP was tested for glossy and matte paper. 3M Rainbow dye sublimation proofer was examined using 3M Rainbow controller ver. 4.1 RIP on the manufacturer recommended proofing paper. ICC profiles were generated for each device using ECI 2002 visual target and evaluated for the accuracy of process 4 color reproduction. The test charts consisting of Pantone color 1140 was selected to test the quality of spot color reproduction.

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The Generation of SPOT True Color Image Using Neural Network Algorithm

  • Chen, Chi-Farn;Huang, Chih-Yung
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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    • pp.940-942
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    • 2003
  • In an attempt to enhance the visual effect of SPOT image, this study develops a neural network algorithm to transform SPOT false color into simulated true color. The method has been tested using Landsat TM and SPOT images. The qualitative and quantitative comparisons indicate that the striking similarity can be found between the true and simulated true images in terms of the visual looks and the statistical analysis.

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딥러닝 알고리즘을 이용한 인쇄된 별색 잉크의 색상 예측 연구 (A Study on A Deep Learning Algorithm to Predict Printed Spot Colors)

  • 전수현;박재상;태현철
    • 산업경영시스템학회지
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    • 제45권2호
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    • pp.48-55
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    • 2022
  • The color image of the brand comes first and is an important visual element that leads consumers to the consumption of the product. To express more effectively what the brand wants to convey through design, the printing market is striving to print accurate colors that match the intention. In 'offset printing' mainly used in printing, colors are often printed in CMYK (Cyan, Magenta, Yellow, Key) colors. However, it is possible to print more accurate colors by making ink of the desired color instead of dotting CMYK colors. The resulting ink is called 'spot color' ink. Spot color ink is manufactured by repeating the process of mixing the existing inks. In this repetition of trial and error, the manufacturing cost of ink increases, resulting in economic loss, and environmental pollution is caused by wasted inks. In this study, a deep learning algorithm to predict printed spot colors was designed to solve this problem. The algorithm uses a single DNN (Deep Neural Network) model to predict printed spot colors based on the information of the paper and the proportions of inks to mix. More than 8,000 spot color ink data were used for learning, and all color was quantified by dividing the visible light wavelength range into 31 sections and the reflectance for each section. The proposed algorithm predicted more than 80% of spot color inks as very similar colors. The average value of the calculated difference between the actual color and the predicted color through 'Delta E' provided by CIE is 5.29. It is known that when Delta E is less than 10, it is difficult to distinguish the difference in printed color with the naked eye. The algorithm of this study has a more accurate prediction ability than previous studies, and it can be added flexibly even when new inks are added. This can be usefully used in real industrial sites, and it will reduce the attempts of the operator by checking the color of ink in a virtual environment. This will reduce the manufacturing cost of spot color inks and lead to improved working conditions for workers. In addition, it is expected to contribute to solving the environmental pollution problem by reducing unnecessarily wasted ink.

방송 촬영용 할로겐 조명과 LED 조명의 성능 평가에 관한 연구 (A Study on the Performance Evaluation of Broadcasting Shooting Halogen Lights and LED Lights)

  • 이장원;한석우;임지원
    • 한국인터넷방송통신학회논문지
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    • 제11권4호
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    • pp.223-229
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    • 2011
  • 본 연구에서는 방송 촬영용 LED Spot 조명기기를 두 가지 형태로 개발하여, 현재 방송용 스튜디오 조명기기가 설치되어 있는 공간에서 다수 사용되고 있는 영국의 Arri사 650W와 1000W Fresnel Spot 조명기기와 조도, 색온도, 연색성 등의 비교 데이터 측정과 피사체의 촬영 시 영상 및 연색성에 따른 색상을 비교 측정하였다. 그리고 방송 촬영용으로 LED Spot 조명기기가 대체 가능한지를 판단하기 위하여 성능평가분석 하였다. 실험평가에서 할로겐 조명기기의 대체용으로 LED Spot 조명기기의 가능성을 확인하였다.

Alloxan 에 의한 Amino Acids 의 Spot Test (Spot Test for Amins Acids with Alloxan)

  • 김태봉;한보섭
    • 대한화학회지
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    • 제8권2호
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    • pp.85-87
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    • 1964
  • Alloxan에 의한 Amino acids의 spot test에 있어서, alloxan수용액에 lactose를 가해주면, alloxan 자신의 착색을 막을 수 있다. lactose를 포함하는 alloxan수용액은 매우 안정하여서, 실온에서 수 개월 동안 두어도 착색되지 않으며, lactose의 존재로 말미암아, alloxan과 amino acids와의 색반응은 조금도 영향을 받지 않았다. 이시약에 의한 amino acids의 spot test법은 ninhydrin에 의한 spot test보다 예민하고, 또 alloxan 또는 dimethylalloxan을 발색약으로 사용하는 paper chromatography법에 비해, proline (1 ${\gamma}$), hydroxyprolin (5 ${\gamma}$)를 확인할 수 있다는 장점을 가지고 있다.

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최근 국내외에서 육성된 무궁화 127 품종 중 조경적 활용가치가 높은 유망품종 선발 (Study on the Selection of Promising Cultivars with Unique Flower Characteristics in the Recently Developed Cultivars of Rose of Sharon (Hibiscus spp.) for Landscape Uses)

  • 김광호;이춘석;강호철
    • 한국전통조경학회지
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    • 제34권3호
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    • pp.124-139
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    • 2016
  • 본 연구는 조경수용 무궁화 우수품종 보급을 위한 유전자원 수집과 특성을 평가하기 위해 최근 국내외에서 육성된 127품종의 1년생 접목묘를 이용하여 2014년부터 2015년까지 2년 동안 생육 및 형태적 특성조사를 실시하였다. 수집된 품종 중 화색 및 꽃이 특이한 품종을 조사하여 무궁화를 조경수로 활용도를 높이는데 기여하고자 하였으며 얻어진 결과는 다음과 같다. 최근 국내외에서 육성된 품종들의 화색별 분류로는 크게 분홍색 단심(pink color with red eye spot), 흰색 단심(white color with red eye spot), 붉은 자주색 단심(purplish red color with red eye spot), 분홍보라색 단심(violet pink color with red eye spot), 심홍색 단심(crimson color with red eye spot), 흰색 바탕에 붉은색 무늬의 이중색(asadal), 흰색(white color), 푸른색(blue color) 등 총 8종류로 분류되었다. 화색이 붉은 자주색으로서 적색이 강한 꽃으로 국내에서 육성된 품종으로 '광명', '난파', '노스페이스', '불새', '비단', '송암', '영창', '적퍼소', '키호', '탐라', '화수레드', '환희' 등이 있었으며, 국외에서 육성되어 국내에 도입된 품종으로는 'Aphrodite', 'Dr. Uemoto', 'Freedom', 'Pink Cup', 'PS 80-1', 'Purpureus Variegatus', 'Red Giant', 'Woodbridge' 등이 있었다. 화색이 분홍보라색으로서 특이한 품종으로는 '꼬마', '도투락', '명미', '병화', '산처녀', '태화', 'Hikari-hanagasa', 'Little Kim Violet' 등이 있었다. 화색이 심홍색으로 기존의 꽃에서는 볼 수 없는 특이한 품종으로 '종무'와 'Ruffled Satin' 등이 있었다. 최근 국내외에서 육성된 품종중 조경수용 소재로 보급할 수 있는 품종중 기존 품종에 비해 꽃의 크기가 큰 품종으로 무궁화 종간교잡종인 Hibiscus hybrid 'Daewangchun', 'Daeil', 'Jina' 등이 있었다. 반면 꽃이 작고 조경적 가치가 높은 품종으로 '꼬마', '미백', '안동', '릴킴', '은하수' 등이 있었다. 백단심계 무궁화 '꼬마' 품종은 수고가 작은 왜성형으로 꽃의 크기가 5.2cm로 작은 소형화 품종으로 나타났다. 기존 품종에 비해 단심의 길이가 긴 품종으로 '훈장'과 '하이리레드'가 있었다. 홍단심계 무궁화 '훈장'은 꽃의 크기는 12.0cm로 중간크기이나 단심길이는 4.8cm로 지금까지 육성된 품종중 가장 긴 품종이었다. 또한 홍단심계 무궁화 '하이리레드'의 단심길이 역시 4.2cm로 꽃잎 길이에 비해 단심의 길이가 길어 조경적 가치가 높은 것으로 판단되었다.

색변환과 영상개선기법을 이용한 SPOT P-mode와 XS-mode 영상합성 (Merging of SPOT P-mode and XS-mode Images using Color Transformation and Image Enhancement)

  • 손덕재;이종훈
    • 한국측량학회지
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    • 제9권2호
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    • pp.103-113
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    • 1991
  • SPOT 수치영상자료를 이용한 지상좌표 계산 과정에서 지상기준점 및 검사점 입럭좌표의 정확도는 계산 결과의 신빙성에 커다란 영향을 준다. CRT 모니터상에 직접 나타난 SPOT 원초 영상은 일반적으로 지상물체의 판별과 점위치 결정에 적합하지 않으므로 전체영상의 대비개선, 영상소보간, 경계선강조, 공간필터처리 등 적절한 영상처리 기병의 적용이 필요하다. 본 연구에서는 대상지역의 3차원 위치 결정과 파장대특성분석에 이용되는 SPOT 위성영상의 시각분석에 필요한 수치영상처리기법의 원리를 고찰하고, 그 적용을 위한 알고리즘을 개발하여 프로그래밍 하였으며, 실제 P-mode 및 XS-mode의 SPOT 영상을 이용하여 고해상도 천연색영상인 SPOT P+XS 영상으로 합성하였다.

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Leaf Spot of Cotton Rose Caused by Corynespora cassiicola in Korea

  • Kwon, Jin-Hyeuk;Park, Chang-Seuk
    • Mycobiology
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    • 제31권1호
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    • pp.57-59
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    • 2003
  • A leaf spot of cotton rose(Hibiscus mutabilis) occurred severely in the flower beds of cotton rose around Uiryeong-gun, Gyeongnam Province in Korea. The causal fungus was identified as Corynespora cassiicola on the basis of cultural and morphological characteristics of the fungus. The fungus grew well on potato dextrose agar and the colony color was gray to brown. Conidia were solitary or catenate, obclavate to cylindrical in shape, and pale olivaceous brown or brown in color. They had 420 pseudosepta, and measured $35.2{\sim}173.6{\times}8.8{\sim}19.9{\mu}m$. Conidia germinated as a bipolar type. Conidiophores were pale to mid brown in color, and measured $74.2{\sim}275.6{\times}3.8{\sim}10.8{\mu}m$. Optimal temperature for mycelial growth was $30^{\circ}C$. The fungal isolate grown on PDA showed strong pathogenicity to cotton rose plant. This is the first report on the corynespora leaf spot of cotton rose(Hibiscus mutabilis) caused by Corynespora cassiicola in Korea.

Amberlite IRC-50에 의한 alkaloid의 미량검출법 (The microdetection of alkaloids with amberlite IRC-50)

  • 김근영;이윤중;손윤자
    • 약학회지
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    • 제11권1_2호
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    • pp.4-6
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    • 1967
  • Cation exchange resin particles amberlite IRC-50 were used as a medium for a identific test of alkaloids with dragendorff reagent. The procedures were as follows; A few particles of amberlite IRC-50 were added to the small portion of sample solutions on a spot plate or in a test tube. After 20 minutes-an hour, a drop of dragendorff reagent were added to particles of resin that were adsorbed. When alkaloid was present, the original color of the resin particles changed instantly to red or reddish orange depending on the amount and kind of alkaloid, while in the absence of alkaloid the original color of the resin particles changed light yellow. These methods were more sensitive than the ordinary spot test or paper spot test for alkaloid. The limits of identifications of nine alkaloids were tested by these methods and compared with the paper spot test method.

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