Patents by Inventor Hyunwook Ok
Hyunwook Ok has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9013771Abstract: A color conversion method, medium, and apparatus, converting a color temperature of an image to a user-set color temperature, on a pixel-by-pixel basis, based on the brightness of each pixel of the image. The color temperature conversion method may include determining a first information associated with a conversion range, determining whether the color temperature of the input pixel needs to be converted by determining, based on the first information, whether the input pixel is within the conversion range, calculating color coordinates of a target point if the input pixel is within the conversion range, and converting the color temperature of the input pixel by moving, in the same direction as the reference point to the target point an amount proportional to the reference point displacement so that the input pixel can be automatically moved along with the reference point of the conversion range.Type: GrantFiled: February 28, 2005Date of Patent: April 21, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Dusik Park, Changyeong Kim, Soongdeok Lee, Hoyoung Lee, Daewon Kim, Wonhee Choe, Hyunwook Ok
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Patent number: 8274527Abstract: A method and apparatus for converting an m-dimensional color space comprising first through m-th input color components to an n-dimensional color space comprising first through n-th output color components. specified A method of converting an m-dimensional color space having first through m-th input color components into an n-dimensional color space having first through n-th output color components, m being less than n, includes: extracting first through nth intermediate color components by linearly combining the first through m-th input color components; determining whether m+1-th through n-th intermediate color components are within a specified dynamic range and compensating the first through n-th intermediate color components when signal values of the m+1-th through n-th intermediate color components are not within the dynamic range to obtain the first through n-th output color components.Type: GrantFiled: February 25, 2005Date of Patent: September 25, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Hyunwook Ok, Seongdeok Lee, Wonhee Choe, Changyeong Kim, Dusik Park
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Patent number: 7852533Abstract: A method and apparatus for adjusting a color of an image, the apparatus includes a unit setting at least one adjustment region shaped as an ellipse in a color space; and a unit converting colors of pixels included in the adjustment region to other colors based on a variable set.Type: GrantFiled: September 1, 2004Date of Patent: December 14, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Dusik Park, Changyeong Kim, Youngsik Huh, Hoyoung Lee, Hyunwook Ok
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Patent number: 7733355Abstract: A method of and apparatus for transforming a three color signal into a multi-color signal. A method of transforming a color signal having three color components into a color signal having first through n-th color components, includes: producing a lookup table having signal values of (n-3) of n color components of a color within a three-dimensional color space and reference variables corresponding to the signal values of the (n-3) color components; extracting the reference variables from an input color signal; determining the signal values of the (n-3) color components corresponding to the extracted reference variables from the lookup table; and producing a color signal having n color components using the determined signal values of the (n-3) color components.Type: GrantFiled: April 29, 2005Date of Patent: June 8, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Hyunwook Ok, Seongdeok Lee, Changyeong Kim, Wonhee Choe
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Patent number: 7688326Abstract: An apparatus, medium, and method for correcting color of an image. The apparatus may includes a user interface which displays each of N reference patches, removes non-gray components from the displayed N reference patches, according to the characteristics of a user's visual system, and outputs the reference patches from which the non-gray components have been removed as adjusted reference patches, a table generator which generates at least one lookup table that has, as addresses, color component values for a current image and stores color component values of the adjusted reference patches as data, and a color corrector which addresses the at least one lookup table using the color component values of the image to read data corresponding to correction information for the color component values of the image and outputs the read data as the result of the correcting of color of the image.Type: GrantFiled: March 30, 2005Date of Patent: March 30, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Minki Cho, Dusik Park, Wonhee Choe, Cheonyong Cho, Changyeong Kim, Seongdeok Lee, Hyunwook Ok, Daewon Kim, Hoyoung Lee
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Patent number: 7586498Abstract: A color temperature conversion method, medium, and apparatus converting an image from one of a plurality of basic color temperatures provided by an image display device to another color temperature other than the plurality of basic color temperatures. Also, the conversion method and apparatus enable pixels of the image with different brightnesses to have different color temperatures according to a user' preference. The color temperature conversion method includes: calculating variables for determining a conversion range; determining whether based on the calculated variables the input pixel is to be color-temperature-converted by determining whether the input pixel is within the conversion range; and converting the color temperature of the input pixel by moving in the same direction as the reference point to the target point in amount proportional to the reference point displacement so that the input pixel can be automatically moved along with the reference point of the conversion range.Type: GrantFiled: February 28, 2005Date of Patent: September 8, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Dusik Park, Changyeong Kim, Seongdeok Lee, Hoyoung Lee, Daewon Kim, Wonhee Choe, Hyunwook Ok
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Patent number: 7446902Abstract: An apparatus and a method for converting a color signal and a computer-readable recording medium storing a computer program for controlling the apparatus. The apparatus converts an input color signal including first through mth input color components into an output color signal including first through nth (n>m) output color components. The apparatus includes: a combination extractor which extracts combinations for the first through nth output color components; a coefficient generator which generates a coefficient for representing the input color signal using the input color signal and the extracted combinations; a combination selector which selects desired combinations among the extracted combinations using the coefficient; and an output unit which generates the output color signal using the selected combinations.Type: GrantFiled: July 22, 2005Date of Patent: November 4, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Wonhee Choe, Yuntae Kim, Dongwoo Kang, Seongdeok Lee, Hyunwook Ok
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Publication number: 20060290956Abstract: An apparatus and a method for converting a color signal and a computer-readable recording medium storing a computer program for controlling the apparatus. The apparatus converts an input color signal including first through mth input color components into an output color signal including first through nth (n>m) output color components. The apparatus includes: a combination extractor which extracts combinations for the first through nth output color components; a coefficient generator which generates a coefficient for representing the input color signal using the input color signal and the extracted combinations; a combination selector which selects desired combinations among the extracted combinations using the coefficient; and an output unit which generates the output color signal using the selected combinations.Type: ApplicationFiled: July 22, 2005Publication date: December 28, 2006Applicant: Samsung Electronics Co., Ltd.Inventors: Wonhee Choe, Yuntae Kim, Dongwoo Kang, Seongdeok Lee, Hyunwook Ok
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Publication number: 20050259110Abstract: A multiple color transformation apparatus and method for an image and a computer readable recording medium storing a computer program therefore are provided. The multiple color transformation apparatus includes a middle status chrominance component producer which linearly combines first through Mth (where M is a positive integer larger than “3”) input chrominance components to represent a color of each of pixels of the image to produce first through Nth (where N is greater than or equal to M) middle status chrominance components; and a chrominance component compensator which relatively differently adjusts luminance levels of the first through Nth middle status chrominance components according to degrees to which the first through Nth middle status chrominance components contribute to representing a single color and outputs the first through Nth middle status chrominance components having the adjusted luminance levels as color-compensated first through Nth middle status chrominance components.Type: ApplicationFiled: April 28, 2005Publication date: November 24, 2005Applicant: Samsung Electronics Co., Ltd.Inventors: Wonhee Choe, Hyunwook Ok, Seongdeok Lee, Changveong Kim
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Publication number: 20050244055Abstract: A method of and apparatus for transforming a three color signal into a multi-color signal. A method of transforming a color signal having three color components into a color signal having first through n-th color components, includes: producing a lookup table having signal values of (n-3) of n color components of a color within a three-dimensional color space and reference variables corresponding to the signal values of the (n-3) color components; extracting the reference variables from an input color signal; determining the signal values of the (n-3) color components corresponding to the extracted reference variables from the lookup table; and producing a color signal having n color components using the determined signal values of the (n-3) color components.Type: ApplicationFiled: April 29, 2005Publication date: November 3, 2005Applicant: Samsung Electronics Co., Ltd.Inventors: Hyunwook Ok, Seongdeok Lee, Changyeong Kim, Wonhee Choe
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Publication number: 20050231741Abstract: An apparatus, medium, and method for correcting color of an image. The apparatus may includes a user interface which displays each of N reference patches, removes non-gray components from the displayed N reference patches, according to the characteristics of a user's visual system, and outputs the reference patches from which the non-gray components have been removed as adjusted reference patches, a table generator which generates at least one lookup table that has, as addresses, color component values for a current image and stores color component values of the adjusted reference patches as data, and a color corrector which addresses the at least one lookup table using the color component values of the image to read data corresponding to correction information for the color component values of the image and outputs the read data as the result of the correcting of color of the image.Type: ApplicationFiled: March 30, 2005Publication date: October 20, 2005Applicant: Samsung ElectronicsInventors: Minki Cho, Dusik Park, Wonhee Choe, Cheonyong Cho, Changyeong Kim, Seongdeok Lee, Hyunwook Ok, Daewon Kim, Hoyoung Lee
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Publication number: 20050201617Abstract: A color conversion method, medium, and apparatus, converting a color temperature of an image to a user-set color temperature, on a pixel-by-pixel basis, based on the brightness of each pixel of the image. The color temperature conversion method may include determining a first information associated with a conversion range, determining whether the color temperature of the input pixel needs to be converted by determining, based on the first information, whether the input pixel is within the conversion range, calculating color coordinates of a target point if the input pixel is within the conversion range, and converting the color temperature of the input pixel by moving, in the same direction as the reference poin,t to the target point an amount proportional to the reference point displacement so that the input pixel can be automatically moved along with the reference point of the conversion range.Type: ApplicationFiled: February 28, 2005Publication date: September 15, 2005Applicant: Samsung Electronics Co., Ltd.Inventors: Dusik Park, Changyeong Kim, Soongdeok Lee, Hoyoung Lee, Daewon Kim, Wonhee Choe, Hyunwook Ok
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Publication number: 20050195211Abstract: A color temperature conversion method, medium, and apparatus converting an image from one of a plurality of basic color temperatures provided by an image display device to another color temperature other than the plurality of basic color temperatures. Also, the conversion method and apparatus enable pixels of the image with different brightnesses to have different color temperatures according to a user' preference. The color temperature conversion method includes: calculating variables for determining a conversion range; determining whether based on the calculated variables the input pixel is to be color-temperature-converted by determining whether the input pixel is within the conversion range; and converting the color temperature of the input pixel by moving in the same direction as the reference point to the target point in amount proportional to the reference point displacement so that the input pixel can be automatically moved along with the reference point of the conversion range.Type: ApplicationFiled: February 28, 2005Publication date: September 8, 2005Applicant: Samsung Electronics Co., Ltd.Inventors: Dusik Park, Changyeong Kim, Seongdeok Lee, Hoyoung Lee, Daewon Kim, Wonhee Choe, Hyunwook Ok
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Publication number: 20050190967Abstract: A method and apparatus for converting an m-dimensional color space comprising first through m-th input color components to an n-dimensional color space comprising first through n-th output color components. specified A method of converting an m-dimensional color space having first through m-th input color components into an n-dimensional color space having first through n-th output color components, m being less than n, includes: extracting first through nth intermediate color components by linearly combining the first through m-th input color components; determining whether m+1-th through n-th intermediate color components are within a specified dynamic range and compensating the first through n-th intermediate color components when signal values of the m+1-th through n-th intermediate color components are not within the dynamic range to obtain the first through n-th output color components.Type: ApplicationFiled: February 25, 2005Publication date: September 1, 2005Applicant: Samsung Electronics Co., Ltd.Inventors: Hyunwook Ok, Seongdeok Lee, Wonhee Choe, Changyeong Kim, Dusik Park
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Publication number: 20050089220Abstract: A method and apparatus for adjusting a color of an image, the apparatus includes a unit setting at least one adjustment region shaped as an ellipse in a color space; and a unit converting colors of pixels included in the adjustment region to other colors based on a variable set.Type: ApplicationFiled: September 1, 2004Publication date: April 28, 2005Applicant: Samsung Electronics Co., Ltd.Inventors: Dusik Park, Changyeong Kim, Youngsik Huh, Hoyoung Lee, Hyunwook Ok