Apparatus and method for enhancing device-adaptive color
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04N-001/60
G06K-009/00
G06F-015/00
G06F-003/08
G06F-003/12
G06T-001/00
출원번호
UP-0709849
(2007-02-23)
등록번호
US-7750919
(2010-07-26)
우선권정보
KR-10-2006-0018298(2006-02-24)
발명자
/ 주소
Bang, You-sun
Kim, Yun-tae
Choh, Heui-keun
출원인 / 주소
Samsung Electronics Co., Ltd.
대리인 / 주소
Sughrue Mion, PLLC
인용정보
피인용 횟수 :
3인용 특허 :
8
초록▼
An apparatus and method for enhancing device-adaptive color is disclosed. The apparatus includes an auxiliary-gamut-setting unit which sets a boundary of a device-adaptive auxiliary gamut using information on a color gamut of a source device and information on a color gamut of a desired reference co
An apparatus and method for enhancing device-adaptive color is disclosed. The apparatus includes an auxiliary-gamut-setting unit which sets a boundary of a device-adaptive auxiliary gamut using information on a color gamut of a source device and information on a color gamut of a desired reference color space; a gamut-conversion unit which converts the color in the gamut of the source device into the color of the set auxiliary gamut; and a gamut-mapping unit which carries out gamut mapping of the color of the auxiliary gamut to a destination gamut of an image output device.
대표청구항▼
What is claimed is: 1. An apparatus for enhancing device-adaptive color, the apparatus comprising: an auxiliary-gamut-setting circuit unit which sets a boundary of a device-adaptive auxiliary gamut using information on a color gamut of a source device and information on a color gamut of a desired r
What is claimed is: 1. An apparatus for enhancing device-adaptive color, the apparatus comprising: an auxiliary-gamut-setting circuit unit which sets a boundary of a device-adaptive auxiliary gamut using information on a color gamut of a source device and information on a color gamut of a desired reference color space; a gamut-conversion circuit unit which converts color in the gamut of the source device into color of the device-adaptive auxiliary gamut with the set boundary; and a gamut-mapping circuit unit which performs a gamut mapping of the color of the device adaptive auxiliary gamut to a destination gamut of an image output device. 2. The apparatus of claim 1, wherein the reference color space comprises a standard red, green and blue color space. 3. The apparatus of claim 1, wherein the information on the color gamut of the source device and the information on the color gamut of the desired reference color space comprises white as a maximum brightness value, black as a minimum brightness value, and a cusp point of the color gamut. 4. The apparatus of claim 3, wherein the auxiliary-gamut-setting unit comprises: a maximum brightness setting unit which sets a larger one of the maximum brightness values in the color gamut of the source device and the color gamut of the reference color space, as a maximum brightness value in the auxiliary gamut; a minimum brightness setting unit which sets a smaller one of the minimum brightness values in the color gamut of the source device and the color gamut of the reference color space, as a minimum brightness value in the auxiliary brightness; and a cusp point setting unit which sets a larger one of cusp points in the color gamut of the source device and the color gamut of the reference color space, as a cusp point of the auxiliary gamut. 5. The apparatus of claim 1, wherein the gamut-conversion circuit unit linearly converts color in the color gamut of the source device into color of the set auxiliary gamut. 6. The apparatus of claim 1, wherein the gamut mapping is carried out by using a compression or clipping mapping method. 7. A method of enhancing device-adaptive color, the method comprising: setting, by at least one hardware processor, a boundary of a device-adaptive auxiliary gamut using information on a color gamut of a source device and information on a color gamut of a desired reference color space; converting, by the at least one hardware processor, a color of the gamut of the source device into color of the device-adaptive auxiliary gamut with the set boundary; and gamut mapping, by the at least one hardware processor, of the color of the auxiliary gamut to a destination gamut of an image output device. 8. The method of claim 7, wherein the reference color space comprises a standard red, green and blue color space. 9. The method of claim 7, wherein the information on the color gamut of the source device and the information on the color gamut of the desired reference color space comprises white as a maximum brightness value, black as a minimum brightness value, and a cusp point of the color gamut. 10. The method of claim 9, wherein the setting the boundary of the auxiliary gamut comprises: setting a larger one of the maximum brightness values in the color gamut of the source device and the color gamut of the reference color space as a maximum brightness value in the auxiliary gamut; setting a smaller one of the minimum brightness values in the color gamut of the source device and the color gamut of the reference color space as a minimum brightness value in the auxiliary gamut; and setting a larger one of cusp points in the color gamut of the source device and the color gamut of the reference color space, as a cusp point of the auxiliary gamut. 11. The method of claim 7, wherein the converting the color of the gamut comprises linearly converting a color of the color gamut of the source device into color of the set auxiliary gamut. 12. The method of claim 7, wherein the gamut mapping is carried out by using a compression or clipping mapping method. 13. A non-transitory computer-readable storage medium encoded thereon a program code for carrying out a method of enhancing device adaptive color, the method comprising: setting a boundary of a device-adaptive auxiliary gamut using information on a color gamut of a source device and information on a color gamut of a desired reference color space; converting a color of the gamut of the source device into color of the device adaptive auxiliary gamut with the set boundary; and gamut mapping of the color of the device adaptive auxiliary gamut to a destination gamut of an image output device. 14. The “non-transitory” computer-readable storage medium of claim 13, wherein the reference color space comprises a standard red, green and blue color space. 15. The “non-transitory” computer-readable storage medium of claim 13, wherein the information on the color gamut of the source device and the information on the color gamut of the desired reference color space comprises white as a maximum brightness value, black as a minimum brightness value, and a cusp point of the color gamut. 16. The “non-transitory” computer-readable storage medium of claim 15, wherein, wherein the setting the boundary of the auxiliary gamut comprises: setting a larger one of the maximum brightness values in the color gamut of the source device and the color gamut of the reference color space as a maximum brightness value in the auxiliary gamut; setting a smaller one of the minimum brightness values in the color gamut of the source device and the color gamut of the reference color space as a minimum brightness value in the auxiliary gamut; and setting a larger one of cusp points in the color gamut of the source device and the color gamut of the reference color space, as a cusp point of the auxiliary gamut. 17. The “non-transitory” computer-readable storage medium of claim 13, wherein the converting the color of the gamut comprises linearly converting a color of the color gamut of the source device into color of the set auxiliary gamut. 18. The “non-transitory” computer-readable storage medium of claim 13, wherein the gamut mapping is carried out by using a compression or clipping mapping method.
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