Dr. Youngshin Kwak Profile

Dr. Youngshin Kwak

at Ulsan National Inst of Science and Technology

SPIE Involvement:

Author

Publications (16)

Proceedings Article | 8 February 2015 Paper

Video enhancement method with color-protection post-processing

Youn Jin Kim, Youngshin Kwak

Proceedings Volume 9395, 93950A (2015) https://doi.org/10.1117/12.2083168

KEYWORDS: Video, RGB color model, Visualization, Colorimetry, Image enhancement, Video compression, Skin, Scanning probe microscopy, Signal attenuation, Image visualization

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Proceedings Article | 8 February 2015 Paper

Investigation of the Helmholtz-Kohlrausch effect using wide-gamut display

Semin Oh, Youngshin Kwak

Proceedings Volume 9395, 93950X (2015) https://doi.org/10.1117/12.2081114

KEYWORDS: LCDs, Image analysis, Image processing, RGB color model, Scattering, Systems engineering, Skin, Color imaging, Electronic imaging, Current controlled current source

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Proceedings Article | 8 February 2015 Paper

Preferred tone curve characteristics of transparent display under various viewing conditions

Sooyeon Lee, Hyeyoung Ha, Youngshin Kwak, Hyosun Kim, Young-jun Seo, Byungchoon Yang

Proceedings Volume 9395, 93950Y (2015) https://doi.org/10.1117/12.2077907

KEYWORDS: LCDs, Image quality, Transmittance, Organic light emitting diodes, Image transmission, Opacity, Image processing, RGB color model, Ions, Neodymium

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Proceedings Article | 8 February 2015 Paper

Preferred memory color difference between the deuteranomalous and normal color vision

YeSeul Baek, Youngshin Kwak, Sungjoo Woo, Chongwook Park

Proceedings Volume 9395, 939517 (2015) https://doi.org/10.1117/12.2081958

KEYWORDS: Color vision, Color difference, Skin, Image quality, Image analysis, Data analysis, Imaging devices, Algorithm development, Color and brightness control algorithms, Image processing

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Proceedings Article | 4 February 2013 Paper

Chroma-preserved luma controlling technique using YCbCr color space

Sooyeon Lee, Youngshin Kwak, Youn Jin Kim

Proceedings Volume 8652, 865203 (2013) https://doi.org/10.1117/12.2006024

KEYWORDS: Data conversion, Data modeling, Mathematical modeling, RGB color model, Image enhancement, Image processing, Chromium, Information operations, Adaptive optics, Algorithm development

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Proceedings Article | 19 January 2010 Paper

Design principles of wide gamut YCC color encoding space for effective signal sub-sampling

Youngshin Kwak

Proceedings Volume 7528, 75280O (2010) https://doi.org/10.1117/12.838664

KEYWORDS: RGB color model, Computer programming, Image quality, Color difference, Content addressable memory, Televisions, Colorimetry, Visual system, Image quality standards, Visual process modeling

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SPIE Journal Paper | 1 April 2008

Optimal color primaries for three- and multiprimary wide gamut displays

Laszlo Beke, Youngshin Kwak, Peter Bodrogi, Seong-Deok Lee, DuSik Park, Chang-Yeong Kim

JEI, Vol. 17, Issue 02, 023012, (April 2008) https://doi.org/10.1117/12.10.1117/1.2921012

KEYWORDS: Visualization, Tolerancing, Legal, RGB color model, Digital Light Processing, CRTs, Colorimetry, Optimization (mathematics), Instrument modeling, Quantization

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Proceedings Article | 14 February 2008 Paper

The colour preference control based on two-colour combinations

Ji Young Hong, Youngshin Kwak, Du-Sik Park, Chang Yeong Kim

Proceedings Volume 6806, 68061A (2008) https://doi.org/10.1117/12.766022

KEYWORDS: RGB color model, Visualization, Algorithm development, Skin, Detection and tracking algorithms, Televisions, Eye, Brain, Electronic imaging, Photography

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SPIE Journal Paper | 1 October 2006

Preferred skin color reproduction on the display

DuSik Park, Youngshin Kwak, Hyunwook Ok, Chang-Yeong Kim

JEI, Vol. 15, Issue 04, 041203, (October 2006) https://doi.org/10.1117/12.10.1117/1.2400850

KEYWORDS: Skin, Color reproduction, Chromium, Mahalanobis distance, Image quality, Algorithm development, Color and brightness control algorithms, Transform theory, Image processing, Imaging devices

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SPIE Journal Paper | 1 April 2006

Subpixel arrangements and color image rendering methods for multiprimary displays

Gabor Kutas, Heuikeun Choh, Youngshin Kwak, Peter Bodrogi, Laszlo Czuni

JEI, Vol. 15, Issue 02, 023002, (April 2006) https://doi.org/10.1117/12.10.1117/1.2193987

KEYWORDS: RGB color model, Modulation transfer functions, Visualization, LCDs, Image quality, Resolution enhancement technologies, Optical filters, Colorimetry, Digital imaging, Image processing

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Proceedings Article | 16 January 2006 Paper

DTV color and image processing: past, present, and future

Chang-Yeong Kim, SeongDeok Lee, Du-Sik Park, Youngshin Kwak

Proceedings Volume 6058, 60580E (2006) https://doi.org/10.1117/12.657688

KEYWORDS: LCDs, Image processing, Image quality, RGB color model, Visualization, Televisions, Manufacturing, Skin, Digital Light Processing, Image enhancement

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Proceedings Article | 16 January 2006 Paper

Skin color reproduction algorithm for portrait images shown on the mobile display

Youngshin Kwak, JiYoung Hong, SeongDeok Lee, Du-Sik Park, Chang Yeong Kim

Proceedings Volume 6058, 60580K (2006) https://doi.org/10.1117/12.643637

KEYWORDS: Skin, Algorithm development, Detection and tracking algorithms, Color reproduction, Chromium, Cameras, CRTs, Colorimetry, Image quality, Cell phones

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Proceedings Article | 17 January 2005 Paper

Optimal chromaticities of the primaries for wide gamut 3-channel display

Youngshin Kwak, Seong-Deok Lee, Wonhee Choe, Chang-Yeong Kim

Proceedings Volume 5667, (2005) https://doi.org/10.1117/12.587338

KEYWORDS: System on a chip, RGB color model, LCDs, Optimization (mathematics), Visualization, CRTs, Image quality, Image quality standards, Color imaging, Video

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Proceedings Article | 17 June 2003 Paper

Mesopic color appearance

Youngshin Kwak, Lindsay MacDonald, M. Ronnier Luo

Proceedings Volume 5007, (2003) https://doi.org/10.1117/12.477371

KEYWORDS: Optical filters, Visualization, Rods, Visual process modeling, Cones, Transmittance, Color vision, CRTs, Electronic filtering, Performance modeling

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Proceedings Article | 6 June 2002 Paper

Color appearance comparison between LCD projector and LCD monitor colors

Youngshin Kwak, Lindsay MacDonald, Ming Luo

Proceedings Volume 4421, (2002) https://doi.org/10.1117/12.464532

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Proceedings Article | 30 March 2001 Paper

Method for characterizing an LCD projection display

Youngshin Kwak, Lindsay MacDonald

Proceedings Volume 4294, (2001) https://doi.org/10.1117/12.420780

KEYWORDS: LCDs, Projection systems, Mathematical modeling, Electro optical modeling, Performance modeling, Data modeling, RGB color model, CRTs, Electro optics, LCD projection

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Showing 5 of 16 publications

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