WO2011034366A2 - 광색역을 위한 rgb 프라이머리 생성 시스템 및 방법, 그리고, rgb 프라이머리를 이용한 컬러 인코딩 시스템 - Google Patents
광색역을 위한 rgb 프라이머리 생성 시스템 및 방법, 그리고, rgb 프라이머리를 이용한 컬러 인코딩 시스템 Download PDFInfo
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- WO2011034366A2 WO2011034366A2 PCT/KR2010/006381 KR2010006381W WO2011034366A2 WO 2011034366 A2 WO2011034366 A2 WO 2011034366A2 KR 2010006381 W KR2010006381 W KR 2010006381W WO 2011034366 A2 WO2011034366 A2 WO 2011034366A2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/67—Circuits for processing colour signals for matrixing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/646—Circuits for processing colour signals for image enhancement, e.g. vertical detail restoration, cross-colour elimination, contour correction, chrominance trapping filters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/68—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits
Definitions
- the present invention relates to RGB primary signal generation systems and methods for wide color gamut, and to RGB primary signal generation systems and methods for wide color gamut using intrinsic hue, gamut range, color gamut efficiency.
- the sRGB color space was most used.
- the size of the gamut was not important because analog film cameras, CRT televisions, and monitors were the majority of displays.
- the color encoding of the video input / output device is sRGB, wide color gamut data is obtained by clipping and being output at both input and output.
- the RGB primary generation system includes an RGB primary setting unit for setting an RGB primary, a gamut boundary setting unit for setting a gamut boundary of a reference color gamut using a data set in a specific color space, the reference color gamut and the A gamut range determination unit that determines whether a gamut range of the target gamut satisfies a gamut range threshold using a target gamut based on an RGB primary, and a target gamut and the reference when the gamut range satisfies the gamut range threshold.
- a gamut efficiency determination unit may be configured to determine whether the gamut efficiency of the target gamut is maximum using the gamut.
- the RGB primary generation system may further include an inherent color tone determination unit that determines whether the set RGB primary belongs to an intrinsic color tone range for maintaining a trajectory recognized as the same color tone.
- the RGB primary generation system may further include an RGB determination unit that adjusts the gamut range threshold by determining whether the RGB primary is real color.
- RGB primary generation method comprises the steps of setting the RGB primary, setting a gamut boundary of a reference gamut using a data set in a specific color space, the reference gamut and Determining whether the gamut range of the target gamut satisfies the gamut range threshold using the target gamut based on the RGB primary; and if the gamut range satisfies the gamut range threshold, the gamut range of the target gamut and the reference gamut is determined. And determining whether the color gamut efficiency of the target color gamut is maximum.
- the color encoding system using RGB primary is a color encoding system characterized in that to perform the color encoding using the Luma and color-difference equations according to Equation 1 .
- the present invention by setting the RGB primary satisfying various conditions, it is possible to obtain a wide color gamut capable of expressing a natural color that cannot be expressed by the existing sRGB color gamut.
- the gradation can be smoothly expressed.
- color balancing can be maintained by setting the RGB primary to satisfy Constant Hue representing the intrinsic color tone.
- FIG. 1 is a view for explaining the operation of the RGB primary generation system according to an embodiment of the present invention.
- FIG. 2 is a block diagram illustrating a detailed configuration of an RGB primary generation system according to an embodiment of the present invention.
- 3 is a diagram comparing an object and a display gamut in a CIE-u'v 'color space.
- FIG. 4 is a diagram illustrating a process of setting a gamut boundary for a data set according to an embodiment of the present invention.
- FIG. 5 is a diagram for determining whether an RGB primary set according to an embodiment of the present invention satisfies Constant Hue.
- FIG. 6 is a diagram illustrating a result of comparing a reference color gamut and a target color gamut according to an exemplary embodiment of the present invention.
- FIG. 7 is a diagram illustrating an example of a color encoding system using RGB primary set according to an embodiment of the present invention.
- FIG. 8 illustrates an example of a color encoding system compatible with BT.709 RGB according to an embodiment of the present invention.
- FIG. 9 is a diagram illustrating a process of setting an RGB primary according to an embodiment of the present invention.
- the RGB primary generation method according to an embodiment of the present invention may be performed by an RGB primary generation system.
- FIG. 1 is a view for explaining the operation of the RGB primary generation system according to an embodiment of the present invention.
- the RGB primary generation system 100 may set a wider target gamut for the reference gamut.
- the reference gamut may be the sRGB gamut
- the target gamut may represent a color that is outside of the sRGB gamut.
- RGB primary generation system 100 includes (1) a maximum gamut range for the reference gamut, (2) a minimum quantization error and maximum gamut efficiency, and (3) Constant Hue You can set an RGB primary that satisfies the range.
- the RGB primary means each of R (Red), G (Green), B (Blue) located in a specific color space.
- the RGB primary generation system 100 may set the RGB primary to satisfy the above condition.
- FIG. 2 is a block diagram illustrating a detailed configuration of an RGB primary generation system according to an embodiment of the present invention.
- the RGB primary generation system 100 includes an RGB primary setting unit 201, a gamut boundary setting unit 202, an inherent color tone determination unit 203, a gamut range determination unit 204, and gamut efficiency.
- the determination unit 205 and the RGB determination unit 206 may be included.
- the RGB primary setting unit 201 may set an initial RGB primary for a specific color space.
- the set RGB primary may be changed in a range satisfying a preset condition.
- the gamut boundary setting unit 202 may set a gamut boundary of the reference gamut by using a data set in a specific color space.
- the data set may include at least one of an object color and a display color.
- the gamut boundary setting unit 202 may set a data set of the CIE-u'v 'color space from data samples such as Pointer, SOCS, and Display (LCD, OLED. Etc.).
- the gamut boundary setting unit 202 may set a gamut boundary from a data set. A detailed process of setting the gamut boundary is described in FIG. 4.
- the inherent color tone determination unit 203 may determine whether the RGB primary belongs to the intrinsic color tone range for maintaining the trajectory recognized as the same color tone.
- the trajectory recognized by the same color tone may be defined as the Constant Hue trajectory.
- Constant Hue can be defined for R (Red), G (Green), B (Blue), C (Cyan), M (Magenta), Y (Yellow) hues.
- the unique color tone determiner 203 may determine whether the RGB primary satisfies the Constant Hue trajectory according to Equation 1 below.
- the unique color tone determination unit 203 may determine whether Red belongs to Magenta and Yellow, Green belongs to Yellow and Cyan, and Blue belongs to Cyan and Magenta for the RGB primary. If the initially set RGB primary does not satisfy Constant Hue, the RGB primary setting unit 201 may reset the RGB primary again. When the RGB primary meets Constant Hue, it can express natural color without distorting the color.
- the gamut range determination unit 204 may determine whether the gamut coverage of the target gamut satisfies the gamut range threshold by using the target gamut based on the reference gamut and the RGB primary.
- the gamut range means the extent to which the target gamut determined through the RGB primary may include the reference gamut of the actual object color or the display color.
- the gamut range determination unit 204 may determine whether the gamut range overlapping between the reference gamut and the target gamut exceeds the gamut range threshold. For example, the gamut range determination unit 204 may calculate a gamut range according to Equation 2 below.
- the RGB primary setting unit 201 may reset the RGB primary again.
- the gamut efficiency determination unit 205 may determine whether the gamut efficiency of the target gamut is maximum by using the target gamut and the reference gamut when the gamut range satisfies the gamut range threshold. For example, the gamut efficiency determination unit 205 may determine whether the gamut efficiency of the target gamut is maximum and the quantization error is minimal.
- the gamut efficiency determination unit 205 may determine whether the gamut efficiency is maximum according to Equation 3 below.
- the larger the gamut range the better.
- the gamut efficiency may decrease, thereby increasing the maximum quantization error.
- the maximum quantization error may mean a maximum value among color difference values for the first difference combination of all code values of the color space. The maximum quantization error increases proportionally as the size of the target color gamut increases, and when the maximum quantization error is small, the gradation of the image applied to the display can be smoothly expressed.
- the RGB determination unit 206 may determine whether the RGB primary is real color and adjust the gamut range threshold. If the RGB primary is not real color, then the gamut range threshold may be reduced. The reduced gamut range threshold may be applied to the gamut range determination unit 204.
- 3 is a diagram comparing an object and a display gamut in a CIE-u'v 'color space.
- the gray dots indicate Pointer and SCOCS data
- the color gamut represented by the three square dots indicates the color gamut of the BT.709 object, the AMOLED display, and the LCD.
- the reference gamut according to an embodiment of the present invention may be a gamut including an object color or a display color. Depending on the configuration of the system, the reference gamut may include only object colors or other display gamuts may be added.
- FIG. 4 is a diagram illustrating a process of setting a gamut boundary for a data set according to an embodiment of the present invention.
- the gamut boundary setting unit 202 may set a gamut boundary of the reference gamut by using a data set in a specific color space. For example, for the u'v 'data set located on the CIE-u'v' plane, the gamut is divided at specific intervals along the v 'axis, and the gamut is connected by connecting the maximum and minimum values of the u' values at all intervals on the v 'axis. You can set boundaries.
- the gamut boundary setting unit 202 may divide the gamut at specific intervals along the v 'axis. At this time, a smaller gamut boundary may be set as the interval is smaller, and a smaller gamut boundary may be set as the interval is larger. The gamut boundary setting unit 202 then obtains the maximum and minimum values of the u 'values for the data divided in the v' axis direction. Then, the gamut boundary setting unit 202 may set the gamut boundary by connecting the maximum value and the minimum value of the u 'value obtained for all sections of the v' value.
- FIG. 5 is a diagram for determining whether an RGB primary set according to an embodiment of the present invention satisfies Constant Hue.
- Constant Hue trajectories for R, G, B, C, M, and Y Hue for RGB Primary signal setting are shown.
- the constant Hue means the trajectories 501, 502, 503, 504, 505, and 506 connected to points recognized as the same color tone for each of the R, G, B, C, M, and Y primarys.
- the RGB primary set by the RGB primary setting unit 202 must satisfy the Constant Hue trajectory. If the RGB primary does not satisfy the Constant Hue, color balancing is not achieved.
- Red 502 is located between Magenta 506 and Yellow 504, Green 501 is a range of yellow 504 and Cyan 505 colors, and Blue 503 is Cyan ( 505) and Magenta (506).
- FIG. 6 is a diagram illustrating a result of comparing a reference color gamut and a target color gamut according to an exemplary embodiment of the present invention.
- the RGB primary generation system 100 may set the RGB primary for setting a wider target color gamut for the reference color gamut for the object color and the display color.
- the RGB primary generation system 100 may set the RGB primary so that the target gamut according to the RGB primary includes the reference gamut as much as possible. In this case, however, the target gamut should have the maximum color gamut efficiency and the minimum quantization error.
- the RGB primary for the target color gamut must satisfy Constant Hue and must be real color.
- RGB primary set may have a value as shown in Table 1 in the CIE-u'v 'color space.
- FIG. 7 is a diagram illustrating an example of a color encoding system using RGB primary set according to an embodiment of the present invention.
- the encoder may transform the Ru'Gu'Bu signal, which is a nonlinear signal, into a Y'CbCr signal using an RGB-to-YCbCr matrix based on an RGB primary set according to an embodiment of the present invention.
- the result calculated according to Table 2 may be used.
- the Luma and color-difference equation is the result of applying the RGB primary according to an embodiment of the present invention.
- Decoder can generate Ru'Gu'Bu 'signal from Y'CbCr signal using RGB-to-YCbCr which is Inverse-Matrix and transfer it to Display.
- the display can linearize and output the Ru'Gu'Bu 'signal using the same Gamma value used in the encoder.
- FIG. 8 illustrates an example of a color encoding system compatible with BT.709 RGB according to an embodiment of the present invention.
- the sRGB compatible unit may convert the linearized RuGuBu signal into an XYZ signal using an RGB-XYZ matrix. Then, the sRGB compatible unit may generate an RsuGsuBsu signal from the XYZ signal using the XYZ-RGB Matrix, and generate an Rsu'Gsu'Bsu 'signal using the BT.709 Gamma.
- the RGB signal may mean a non-clipping signal in which a negative value smaller than 0 and a value larger than 1 exist.
- the display may linearize the Rsu'Gsu'Bsu 'signal using Gamma, and output the RsGsBs signal after clipping.
- FIG. 9 is a diagram illustrating a process of setting an RGB primary according to an embodiment of the present invention.
- the RGB primary generation system 100 may set an initial RGB primary (S901). At this time, the gamut range threshold may be set to 100%.
- the RGB primary generation system 100 may set a CIE-u'v 'data set (S902).
- the CIE-u'v 'data set may include at least one of an object color and a display color.
- the RGB primary generation system 100 may set a gamut boundary of the reference gamut using a data set in CIE-u'v '(S903).
- the RGB primary generation system 100 divides the gamut of the u'v 'data set located on the CIE-u'v' plane at a specific interval on the v 'axis, and the u' value at every interval on the v 'axis. You can set the gamut boundary by connecting the maximum and minimum values of.
- the RGB primary generation system 100 may set a unique hue (S904).
- the intrinsic color tone may refer to a constant hue for R, G, B, C, M, and Y Hue described above.
- the RGB primary generation system 100 may determine whether the RGB primary belongs to an intrinsic hue range for maintaining a trajectory recognized as the same hue (S905). For example, the RGB primary generation system 100 may determine whether Red belongs to Magenta and Yellow, Green belongs to Yellow and Cyan, and Blue belongs to Cyan and Magenta for the RGB primary. . If the RGB primary does not belong to the intrinsic hue range, the RGB primary generation system 100 may reset the RGB primary (S910).
- the RGB primary generation system 100 may calculate a gamut range of the target gamut (S906).
- the gamut range may be calculated according to Equation 2 above.
- the RGB primary generation system 100 may determine whether the gamut range of the target gamut satisfies the preset gamut range threshold T (S907). If the gamut range does not satisfy the gamut range threshold, the RGB primary generation system 100 may reset the RGB primary (S910).
- the RGB primary generation system 100 may calculate color gamut efficiencies of the target gamut using the target gamut and the reference gamut (S908). Color gamut efficiency may be calculated according to Equation 3 above.
- the RGB primary generation system 100 may determine whether the color gamut efficiency of the target gamut is maximum (S909). In this case, the RGB primary generation system 100 may determine whether the color gamut efficiency of the target gamut is maximum and the quantization error is minimum. If the color gamut efficiency of the target color gamut is not maximum, the RGB primary generation system 100 may reset the RGB primary (S910).
- the RGB primary generation system 100 may determine whether the RGB primary is a real color (S911). In this case, when the RGB primary is not the real color, the RGB primary generation system 100 may reduce the gamut range threshold (S912).
- Parts not described in FIG. 9 may refer to items described in FIGS. 1 to 8.
- the RGB primary generation method includes a computer readable medium including program instructions for performing various computer-implemented operations.
- the computer readable medium may include program instructions, data files, data structures, and the like, alone or in combination.
- the medium or program instructions may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well known and available to those having skill in the computer software arts.
- Examples of computer readable recording media include magnetic media such as hard disks, floppy disks and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks such as floppy disks.
- the medium may be a transmission medium for transmitting a signal specifying a program command, a data structure, or the like.
- Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like.
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Claims (19)
- RGB 프라이머리를 설정하는 RGB 프라이머리 설정부;특정 색공간에서의 데이터 집합(Data set)을 이용하여 레퍼런스 색역의 색역 경계를 설정하는 색역 경계 설정부;상기 래퍼런스 색역과 상기 RGB 프라이머리에 기초한 타겟 색역을 이용하여 상기 타겟 색역의 색역 범위가 색역 범위 임계치를 만족하는 지 여부를 판단하는 색역 범위 판단부; 및상기 색역 범위가 상기 색역 범위 임계치를 만족하면, 타겟 색역과 상기 레퍼런스 색역을 이용하여 상기 타겟 색역의 색역 효율이 최대인지 여부를 판단하는 색역 효율 판단부를 포함하는 RGB 프라이머리 생성 시스템.
- 제1항에 있어서,상기 데이터 집합은,오브젝트 컬러 또는 디스플레이 컬러 중 적어도 하나를 포함하는 RGB 프라이머리 생성 시스템.
- 제1항에 있어서,상기 색역 경계 설정부는,CIE-u'v' 평면 상에 위치한 u'v' data set에 대해서 v'축으로 특정 간격으로 색역을나누고, v'축의 모든 간격에서 u'값의 최대값과 최소값을 연결하여 색역 경계를 설정하는 것을 특징으로 하는 RGB 프라이머리 생성 시스템.
- 제1항에 있어서,상기 설정된 RGB 프라이머리가 동일한 색조로 인지되는 궤적을 유지하기 위한고유 색조 범위에 속하는 지 여부를 판단하는 고유 색조 판단부를 더 포함하는 RGB 프라이머리 생성 시스템.
- 제4항에 있어서,상기 고유 색조 판단부는,상기 설정된 RGB 프라이머리에 대해 Red는 Magenta와 Yellow 사이에 속하고, Green은 Yellow와 Cyan 사이에 속하며, Blue는 Cyan과 Magenta에 속하는 지 여부를 판단하는 것을 특징으로 하는 RGB 프라이머리 생성 시스템.
- 제1항에 있어서,상기 색역 범위 판단부는,상기 레퍼런스 색역과 상기 타겟 색역 간에 오버랩되는 색역 범위가 색역 범위 임계치를 초과하는 지 여부를 판단하는 것을 특징으로 하는 RGB 프라이머리 생성 시스템.
- 제1항에 있어서,상기 색역 효율 판단부는,상기 타겟 색역의 색역 효율이 최대이면서 양자화 오차가 최소인지 여부를 판단하는 것을 특징으로 하는 RGB 프라이머리 생성 시스템.
- 제1항에 있어서,상기 RGB 프라이머리가 리얼 컬러인지 판단하여 상기 색역 범위 임계치를 조절하는 RGB 판단부를 더 포함하는 RGB 프라이머리 생성 시스템.
- 제8항에 있어서,상기 RGB 판단부는,상기 RGB 프라이머리가 리얼 컬러가 아닌 경우, 상기 색역 범위 임계치를 감소시키는 것을 특징으로 하는 RGB 프라이머리 생성 시스템.
- RGB 프라이머리를 설정하는 단계;특정 색공간에서의 데이터 집합(Data set)을 이용하여 레퍼런스 색역의 색역 경계를 설정하는 단계;상기 래퍼런스 색역과 상기 RGB 프라이머리에 기초한 타겟 색역을 이용하여 상기 타겟 색역의 색역 범위가 색역 범위 임계치를 만족하는 지 여부를 판단하는 단계; 및상기 색역 범위가 상기 색역 범위 임계치를 만족하면, 타겟 색역과 상기 레퍼런스 색역을 이용하여 상기 타겟 색역의 색역 효율이 최대인지 여부를 판단하는 단계를 포함하는 RGB 프라이머리 생성 방법.
- 제10항에 있어서,상기 설정된 RGB 프라이머리가 동일한 색조로 인지되는 궤적을 유지하기 위한고유 색조 범위에 속하는 지 여부를 판단하는 단계를 더 포함하는 RGB 프라이머리 생성 방법.
- 제10항에 있어서,상기 타겟 색역의 색역 효율이 최대인지 여부를 판단하는 단계는,상기 타겟 색역의 색역 효율이 최대이면서 양자화 오차가 최소인지 여부를 판단하는 것을 특징으로 하는 RGB 프라이머리 생성 방법.
- 제10항에 있어서,상기 RGB 프라이머리가 리얼 컬러인지 판단하여 상기 색역 범위 임계치를 조절하는 단계를 더 포함하는 RGB 프라이머리 생성 방법.
- 제13항에 있어서,상기 RGB 프라이머리가 리얼 컬러인지 판단하여 상기 색역 범위 임계치를 조절하는 단계는,상기 RGB 프라이머리가 리얼 컬러가 아닌 경우, 상기 색역 범위 임계치를 감소시키는 것을 특징으로 하는 RGB 프라이머리 생성 방법.
- 제10항 내지 제14항 중 어느 한 항의 방법을 실행하기 위한 프로그램이 기록되어 있는 것을 특징으로 하는 컴퓨터에서 판독 가능한 기록 매체.
- CIE-u'v' 색공간에서 RGB 프라이머리를 생성하는 RGB 프라이머리 생성 시스템에 있어서,RGB 프라이머리 각각의 색공간 좌표 집합이 {R, G, B}={(u1, v1), (u2, v2), (u3, v3)}인 경우, {R, G, B}={(0.5399, 0.5190), (0.035, 0.5859), (0.165, 0.1182)}인 부분집합을 포함하는 것을 특징으로 하는 RGB 프라이머리 생성 시스템.
- 제16항에 있어서,상기 RGB 프라이머리 생성 시스템은,RGB 프라이머리를 설정하는 RGB 프라이머리 설정부;특정 색공간에서의 데이터 집합(Data set)을 이용하여 레퍼런스 색역의 색역 경계를 설정하는 색역 경계 설정부;상기 설정된 RGB 프라이머리가 동일한 색조로 인지되는 궤적을 유지하기 위한고유 색조 범위에 속하는 지 여부를 판단하는 고유 색조 판단부;상기 래퍼런스 색역과 상기 RGB 프라이머리에 기초한 타겟 색역을 이용하여 상기 타겟 색역의 색역 범위가 색역 범위 임계치를 만족하는 지 여부를 판단하는 색역 범위 판단부;상기 색역 범위가 상기 색역 범위 임계치를 만족하면, 타겟 색역과 상기 레퍼런스 색역을 이용하여 상기 타겟 색역의 색역 효율이 최대인지 여부를 판단하는 색역 효율 판단부; 및상기 RGB 프라이머리가 리얼 컬러인지 판단하여 상기 색역 범위 임계치를 조절하는 RGB 판단부를 포함하는 RGB 프라이머리 생성 시스템.
- 제18항에 있어서,상기 RGB 프라이머리는,CIE-u'v' 색공간에서 색공간 좌표 집합이 {R, G, B}={(u1, v1), (u2, v2), (u3, v3)}인 경우, 적어도 하나의 {R, G, B}={(0.5399, 0.5190), (0.035, 0.5859), (0.165, 0.1182)}인 부분집합을 포함하는 것을 특징으로 하는 컬러 인코딩 시스템.
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| CN201080042139.2A CN102577396B (zh) | 2009-09-21 | 2010-09-17 | 用于广色域的rgb原色生成系统和方法及彩色编码系统 |
| US13/497,418 US8963945B2 (en) | 2009-09-21 | 2010-09-17 | System and method for generating RGB primary for wide gamut, and color encoding system using RGB primary |
| JP2012529679A JP5705228B2 (ja) | 2009-09-21 | 2010-09-17 | 広色域のためのrgbプライマリ生成システム及び方法、並びにrgbプライマリを用いたカラー符号化システム |
| EP10817435.0A EP2482559B1 (en) | 2009-09-21 | 2010-09-17 | System and method for generating rgb primaries for a wide color gamut, and color encoding system using rgb primaries |
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| KR1020090089049A KR101650451B1 (ko) | 2009-09-21 | 2009-09-21 | 광색역을 위한 rgb 프라이머리 생성 시스템 및 방법, 그리고, rgb 프라이머리를 이용한 컬러 인코딩 시스템 |
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| EP (1) | EP2482559B1 (ko) |
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| KR (1) | KR101650451B1 (ko) |
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| KR20160031466A (ko) * | 2013-07-14 | 2016-03-22 | 엘지전자 주식회사 | 디지털 방송 시스템에서 고품질의 색감 표현을 위한 초고화질 방송 신호 송수신 방법 및 장치 |
| CN105788498B (zh) * | 2014-12-25 | 2018-11-23 | 深圳Tcl数字技术有限公司 | 画面显示的方法和装置 |
| WO2019023835A1 (zh) * | 2017-07-31 | 2019-02-07 | 华为技术有限公司 | 一种广色域图像显示方法及设备 |
| CN108986769B (zh) * | 2018-09-05 | 2020-01-14 | 成都索贝数码科技股份有限公司 | 一种低于Rec.2020色域显示设备最大化还原Rec.2020色域内容的方法 |
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| US10455125B2 (en) | 2015-04-01 | 2019-10-22 | Samsung Electronics Co., Ltd. | Image processing method and device |
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| Publication number | Publication date |
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| KR101650451B1 (ko) | 2016-09-06 |
| JP5705228B2 (ja) | 2015-04-22 |
| CN102577396B (zh) | 2015-09-02 |
| EP2482559A4 (en) | 2013-07-24 |
| WO2011034366A3 (ko) | 2011-07-07 |
| KR20110031696A (ko) | 2011-03-29 |
| EP2482559B1 (en) | 2018-03-21 |
| US20120281010A1 (en) | 2012-11-08 |
| JP2013505623A (ja) | 2013-02-14 |
| CN102577396A (zh) | 2012-07-11 |
| US8963945B2 (en) | 2015-02-24 |
| EP2482559A2 (en) | 2012-08-01 |
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