WO2017096682A1 - Rgb信号到rgby信号的图像转换系统及方法 - Google Patents

Rgb信号到rgby信号的图像转换系统及方法 Download PDF

Info

Publication number
WO2017096682A1
WO2017096682A1 PCT/CN2016/070146 CN2016070146W WO2017096682A1 WO 2017096682 A1 WO2017096682 A1 WO 2017096682A1 CN 2016070146 W CN2016070146 W CN 2016070146W WO 2017096682 A1 WO2017096682 A1 WO 2017096682A1
Authority
WO
WIPO (PCT)
Prior art keywords
signal
rgby
input signal
rgb
yellow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/070146
Other languages
English (en)
French (fr)
Inventor
吴金军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US14/914,021 priority Critical patent/US10171783B2/en
Publication of WO2017096682A1 publication Critical patent/WO2017096682A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2003—Display of colours
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • G09G5/04—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed using circuits for interfacing with colour displays
    • 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
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/06—Colour space transformation
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2370/00—Aspects of data communication
    • G09G2370/12—Use of DVI or HDMI protocol in interfaces along the display data pipeline

Definitions

  • the present invention relates to the field of display technologies, and in particular, to an image conversion system and method for RGB signals to RGBY signals.
  • red (R) sub-pixel units red (R) sub-pixel units
  • green (G) sub-pixel units red (R) sub-pixel units
  • blue (B) sub-pixel units are present.
  • a pixel unit is formed, and a color image is displayed by controlling the gray value of each sub-pixel unit to mix the color to be displayed.
  • the product optimization of the display device composed of the three primary colors of RGB is restricted, and the frequency of yellow appearing in the video is higher than that of other colors, and based on this, A pixel unit composed of a red (R) sub-pixel unit, a green (G) sub-pixel unit, a blue (B) sub-pixel unit, and a yellow (Y) sub-pixel unit, thereby improving the luminous efficiency of the RGB display, and also vivid Reproduce yellow and gold colors that are difficult to reproduce realistically by traditional RGB three primary color techniques.
  • the blue complementary color is enhanced, the expression of blue will also be improved.
  • RGB signals are directly applied to RGBY displays, image distortion will occur, so it is necessary to convert RGB signals connected to RGBY displays.
  • the acquired RBGY signal is shifted to the Y sub-pixel chrominance position compared to the original RGB signal, so that color shift occurs in the non-yellow region of the image. The phenomenon that causes the image to be distorted.
  • Embodiments of the present invention provide an image conversion method and an image conversion system for an RGB signal to an RGBY signal, which are used to convert an RGB signal into an RGBY signal without distortion.
  • the RGB input signal when it is confirmed that the RGB input signal is yellow, it continues to determine a magnitude relationship between a signal value of Ri in the RBG input signal and a signal value of Gi, and calculates the RGBY output signal according to the determination result.
  • RoGoBoYo when it is confirmed that the RGB input signal is yellow, it continues to determine a magnitude relationship between a signal value of Ri in the RBG input signal and a signal value of Gi, and calculates the RGBY output signal according to the determination result.
  • the output signal Go is calculated by Gi and Yo.
  • the determining unit determines whether the color of the RGB input signal is yellow, it is determined that the input signals Ri, Gi, and Bi corresponding to the three colors of the R, G, and B of the RGB input signal are Bi. Whether the signal value is the smallest, if the signal value of Bi is the smallest, it is confirmed that the color of the RGB input signal is yellow, and if not, it is confirmed that the color of the RGB input signal is non-yellow.
  • the calculating unit when the determining unit confirms that the RGB input signal is yellow, the calculating unit continues to determine a magnitude relationship between a signal value of Ri in the RBG input signal and a signal value of Gi, and according to the The judgment result calculates the RGBY output signal RoGoBoYo.
  • FIG. 1 is a schematic diagram of functional modules of an image conversion system of an RGB signal to an RGBY signal according to an embodiment of the present invention.
  • Figure 2 is a schematic diagram showing the distribution of RGB signals in the color gamut.
  • FIG. 3 is a schematic flowchart of an image conversion method of an RGB signal to an RGBY signal according to an embodiment of the present invention.
  • Embodiments of the present invention provide an image conversion method and system for RGB signals to RGBY signals, which are used to convert RGB signals into RGBY signals without distortion.
  • the image conversion method of the RGB signal to the RGBY signal includes:
  • the RGBY output signals are respectively calculated and output.
  • the image conversion system of the RGB signal to the RGBY signal includes:
  • a signal receiving unit configured to receive an RGB input signal
  • a determining unit configured to determine whether a color of the RGB input signal is yellow
  • a calculating unit configured to respectively calculate an RGBY output signal according to the above judgment result
  • a signal output unit for outputting the RGBY output signal.
  • FIG. 1 is a functional block diagram of an image conversion system S1 of an RGB signal to an RGBY signal.
  • the image conversion system S1 can be run on a piece of hardware, or can be implemented by means of software plus a necessary general hardware platform to achieve the purpose of converting the RGB input signal into an RGBY signal and outputting it.
  • the image conversion system S1 includes a signal receiving unit 10, a judging unit 30, a calculating unit 50, and a signal output unit 70.
  • the receiving unit 10 is configured to receive the RBG input signal and transmit the RGB input signal to the determining unit 30.
  • the determining unit 30 is configured to determine whether the color of the input signal is yellow, and transmit the determination result to the calculating unit.
  • the calculation unit 50 is configured to The determination result of the determination unit 30 calculates the RGBY output signal and transmits the RGBY output signal to the signal output unit 70.
  • the signal output unit 70 is configured to output the RGBY output signal.
  • each unit of the image conversion system S1 is a programmable module that is stored in a memory and can be executed by an actuator.
  • the signal receiving unit 10 is configured to receive the RGB input signal. Specifically, the signal receiving unit 10 is configured to receive the RGB input signal RiGiBi and transmit the input signal RiGiBi to the determining unit 30. Where Ri represents the red input signal value in the RGB input signal, Gi represents the green input signal value in the RGB input signal, and Bi represents the blue input signal value in the RGB input signal.
  • the input signal of each color in the RGB input signal is exemplified by an 8-bit input signal, that is, an input signal corresponding to three colors of R, G, and B can respectively pass a gray value between 0 and 255 (n )To represent.
  • the determining unit 30 is configured to determine whether the color of the input signal is yellow. Specifically, the determining unit determines whether the signal value of Bi is the smallest among the input signals Ri, Gi, and Bi corresponding to the three colors of R, G, and B. If the signal value of Bi is not the minimum value of Ri, Gi, Bi, it is determined that the color of the input signal is non-yellow; if so, it is determined that the color of the input signal is yellow. The determining unit 30 is further configured to pass the foregoing determination result to the computing unit.
  • FIG. 3 shows the distribution of RGB signals in the color gamut.
  • the ROG triangles shown in the figure represent yellow areas
  • the BOG triangles represent blue areas
  • the ROB triangles represent red areas. . Therefore, in an RGB signal, when the signal of B is at a minimum in R, G, B, the color of the RGB signal is distributed in the ROG triangle, and at this time, the color of the RGB signal It is yellow, so the determination unit 30 can determine whether the color of the RGB input signal is yellow by the magnitude of each of the input signals Ri, Gi, and Bi.
  • the calculating unit 50 is configured to separately calculate the RGBY output signal RoGoBoYo according to the foregoing determination result.
  • Ro represents the red output signal value in the RGBY output signal
  • Go represents the green output signal value in the RGBY output signal
  • Bo represents the blue output signal value in the RGBY output signal
  • Yo represents the yellow output in the RGBY output signal.
  • the calculating unit 50 calculates the RGBY output signal RoGoBoYo in two cases according to whether the color of the RGB input signal is yellow or not. details as follows:
  • Y yellow signal
  • R red signal
  • G green signal
  • n is the grayscale value
  • Ln is the luminance value when the grayscale value is n
  • ⁇ is the gamma conversion factor, and generally the gamma conversion factor ⁇ is usually set to 2.2 in the specific calculation.
  • the calculation unit 50 can calculate the RGBY output signal RoGoBoYo.
  • Y yellow signal
  • R red signal
  • G green signal
  • n is the grayscale value
  • Ln is the luminance value when the grayscale value is n
  • ⁇ is the gamma conversion factor, and generally the gamma conversion factor ⁇ is usually set to 2.2 in the specific calculation.
  • the calculation unit 50 can calculate the RGBY output signal RoGoBoYo.
  • the calculating unit 50 is further configured to use the above calculated RGBY output signal RoGoBoYo is passed to the signal output unit 70.
  • the signal output unit 70 is configured to output the RGBY output signal RoGoBoYo.
  • the non-yellow picture in the signal does not appear to be prone to color drift in traditional algorithms. If it is confirmed that the color of the input signal is yellow, and then determine the signal value of Ri and Gi in the RGB input signal, let Yo be equal to the smaller one of Ri and Gi, and then let the smaller one of Ri and Gi be zero.
  • the output signal values of the larger of Ri and Gi are calculated, thereby obtaining the RGBY output signal RoGoBoYo.
  • the final output of the RGBY output signal is obtained, which solves the problem that the non-yellow color shifts toward the Y sub-pixel chromaticity direction, and at the same time makes the yellow color more vivid.
  • FIG. 3 is a schematic flowchart diagram of an image conversion method of an RGB signal to an RGBY signal according to an embodiment of the present invention.
  • the image conversion method of the RGB signal to the RGBY signal applies the image conversion system S1 described above to convert the RGB signal into an RGBY signal.
  • the image conversion system S1 includes a signal receiving unit 10, a judging unit 30, a calculating unit 50, and a signal output unit 70.
  • the receiving unit 10 is configured to receive the RBG input signal and transmit the RGB input signal to the determining unit 30.
  • the determining unit 30 is configured to determine whether the color of the input signal is yellow, and transmit the determination result to the calculating unit.
  • the calculating unit 50 is configured to calculate the RGBY output signal according to the determination result of the determining unit 30, and transmit the RGBY output signal to the signal output unit 70.
  • the signal output unit 70 is configured to output the RGBY output signal.
  • the image conversion method includes the following steps:
  • Step S101 Receive an RGB input signal RiGiBi. Specifically, the signal receiving unit 10 receives the RGB input signal RiGiBi.
  • Step S103 determining whether the color of the RGB input signal is yellow. If not, executing step S105, and if yes, executing step S107. Specifically, the determining unit 30 determines whether the signal value of Bi is the smallest among the input signals Ri, Gi, and Bi corresponding to the three colors R, G, and B. If the signal value of Bi is not the minimum value of Ri, Gi, and Bi, it is determined that the color of the RGB input signal is non-yellow, and step S105 is performed; if the signal value of Bi is the minimum value of Ri, Gi, and Bi, Then, it is determined that the color of the RGB input signal is yellow, and step S107 is performed.
  • Step S105 Calculate the RGBY output signal RoGoBoYo according to the above determination result, and execute step S113. Specifically, if the determining unit 30 confirms that the color of the input signal is non-yellow, the calculating unit 50 calculates the RGBY output signal RoGoBoYo. details as follows:
  • Step S107 Continue to determine whether the signal value of Ri in the input signals Ri, Gi, and Bi corresponding to the three colors R, G, and B is greater than the signal value of Gi. If yes, go to step S109, and if no, go to step S111. Specifically, if the determining unit 30 confirms that the color of the RGB input signal is yellow, the calculating unit continues to determine the signal value of Ri in the input signals Ri, Gi, and Bi corresponding to the three colors R, G, and B. Whether it is greater than the signal value of Gi, and if so, step S109 is performed, if the signal value of Ri is not greater than For the signal value of Gi, step S111 is performed.
  • Step S109 Calculate the RGBY output signal RoGoBoYo, and execute step S113. Specifically, if the calculation unit 50 determines that the signal value of Ri is greater than the signal value of Gi (Ri>Gi is true), the RGBY output signal RoGoBoYo is continuously calculated. details as follows:
  • Y yellow signal
  • R red signal
  • G green signal
  • n is the grayscale value
  • Ln is the luminance value when the grayscale value is n
  • ⁇ is the gamma conversion factor, and generally the gamma conversion factor ⁇ is usually set to 2.2 in the specific calculation.
  • the calculation unit 50 calculates the RGBY output signal RoGoBoYo
  • the RBGY output signal is transmitted to the signal output unit 70, and step S113 is performed.
  • Step S111 Calculate the RGBY output signal RoGoBoYo, and execute step S113. Specifically, if the calculation unit 50 determines that the signal value of Ri is not greater than the signal value of Gi (Ri>Gi is false), the RGBY output signal RoGoBoYo is continuously calculated. details as follows:
  • Y yellow signal
  • R red signal
  • G green signal
  • n is the grayscale value
  • Ln is the luminance value when the grayscale value is n
  • ⁇ is the gamma conversion factor, and generally the gamma conversion factor ⁇ is usually set to 2.2 in the specific calculation.
  • the calculation unit 50 calculates the RGBY output signal RoGoBoYo
  • the RBGY output signal is transmitted to the signal output unit 70, and step S113 is performed.
  • Step S113 Output the RGBY output signal RoGoBoYo. Specifically, the signal output unit 70 outputs the RGBY output signal RoGoBoYo.
  • the output signal values of the larger of Ri and Gi are calculated, thereby obtaining the RGBY output signal RoGoBoYo.
  • the final output of the RGBY output signal is obtained, which solves the problem that the non-yellow color shifts toward the Y sub-pixel chromaticity direction, and at the same time makes the yellow color more vivid.
  • the embodiments of the present invention may be implemented by hardware, or may be implemented by means of software plus a necessary general hardware platform.
  • the technical solution of the embodiment of the present invention may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a USB flash drive, a mobile hard disk, etc.).
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present invention.
  • the functional modules/functional units in the system in the embodiment may be distributed in the system of the embodiment according to the description of the embodiment, or may be correspondingly changed in one or more systems different from the embodiment.
  • the functional function modules/functional units of the above embodiments may be combined into one functional module/functional unit, or may be further split into multiple sub-function modules/functional units.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Processing Of Color Television Signals (AREA)
  • Color Image Communication Systems (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

本发明涉及一种RGB信号到RGBY信号的图像转换方法，其包括步骤：接收RGB输入信号RiGiBi；判断所述RGB输入信号的颜色是否为黄色；以及确认所述RGB输入信号为非黄色时，计算RGBY输出信号RoGoBoYo并输出，其中Yo＝0，RoGoBo＝RiGiBi。本发明还提供一种应用上述RGB信号到RGBY信号的图像转换方法的图像转换系统。上述的图像转换方法及系统，在将RGB信号转换为RGBY信号时的信号保真度相对较高。

Description

RGB信号到RGBY信号的图像转换系统及方法 技术领域
本发明涉及显示技术领域，尤其涉及一种RGB信号到RGBY信号的图像转换系统及方法。
背景技术
目前，在诸如液晶面板(LCD)和有机电致发光显示面板(oLED)的图像显示设备中，以红色(R)亚像素单元、绿色(G)亚像素单元以及蓝色(B)亚像素单元组成一个像素单元，通过控制每个亚像素单元的灰度值混合出所需显示的色彩来显示彩色图像。由于RGB三原色尤其是蓝色亚像素的发光效率较低，会制约由RGB三原色组成的显示设备的产品优化，而且黄色在视频中出现的频率比其它颜色出现的频率高，基于此，出现了由红色(R)亚像素单元、绿色(G)亚像素单元、蓝色(B)亚像素单元以及黄色(Y)亚像素单元所组成的像素单元，从而可以改善RGB显示器的发光效率，还可以生动地再现黄色、金色这些依靠传统RGB三原色技术难以真实再现的色彩，同时作为蓝色补色的黄色被增强后，对蓝色的表现力也会起到很好的提升作用。
一般诸如VGA接口、DVI接口的信号传输接口传输的都是RGB信号，若将RGB信号直接应用于RGBY显示器会导致图像失真，因此需要对接入RGBY显示器的RGB信号进行转换。然而，目前经上述的信号转换技术后，所获取的RBGY的信号，相较于原始RGB信号，其色度均向Y子像素色度位置偏移，使图像中的非黄色区域会出现色彩漂移的现象，导致图像表现失真。
因此，如何在不失真的情况下，将RGB信号转换为RGBY信号，是本领域技术人员亟需解决的技术问题。
发明内容
本发明实施例提供了一种RGB信号到RGBY信号的图像转换方法及图像转换系统，用以实现在不失真的情况下，将RGB信号转换为RGBY信号。
本发明实施例提供的一种RGB信号到RGBY信号的图像转换方法，包括步骤：接收RGB输入信号RiGiBi；判断所述RGB输入信号的颜色是否为黄色；以及确认所述RGB输入信号为非黄色时，计算RGBY输出信号RoGoBoYo并输出，其中Yo＝0，RoGoBo＝RiGiBi。
作为一种优选方案，判断所述RGB输入信号的颜色是否为黄色时，判断所述RGB输入信号的R、G、B三种颜色对应的输入信号Ri、Gi、Bi中，Bi的信号值是否为最小，若Bi的信号值为最小，则确认所述RGB输入信号的颜色为黄色，若否，则确认所述RGB输入信号的颜色为非黄色。
作为一种优选方案，确认所述RGB输入信号为黄色时，继续判断所述RBG输入信号中Ri的信号值与Gi的信号值之间的大小关系，并根据该判断结果计算所述RGBY输出信号RoGoBoYo。
作为一种优选方案，判断若所述RBG输入信号中Ri的信号值大于Gi的信号值，则计算所述RGBY输出信号Bo＝Bi，Yo＝Gi，Go＝0，且根据三原色合成的原理，由Ri及Yo计算出输出信号Ro。
作为一种优选方案，由Ri及Yo计算出所述输出信号Ro时，通过下述公式计算:Ro＝255*[Ri^γ-Yo^γ]^1/γ，其中γ表示伽马转换因子。
作为一种优选方案，判断若所述RBG输入信号中Ri的信号值不大于Gi的信号值，则计算所述RGBY输出信号号Bo＝Bi，Yo＝Ri，Ro＝0，且根据三原色合成的原理，由Gi及Yo计算出输出信号Go。
作为一种优选方案，由Ri及Yo计算出所述输出信号Go时，通过下述公式计算:Go＝255*[Gi^γ-Yo^γ]^1/γ，其中γ表示伽马转换因子。
一种RGB信号到RGBY信号的图像转换系统，其包括：信号接收单元，用于接收RGB输入信号RiGiBi；判断单元，用于判断所述RGB输入信号的颜色是否为黄色；计算单元，用于在所述判断单元确认所述RGB输入信号为非黄色时，计算RGBY输出信号RoGoBoYo，其中Yo＝0，RoGoBo＝RiGiBi；以及信号输出单元，用于输出所述RGBY输出信号RoGoBoYo。
作为一种优选方案，所述判断单元判断所述RGB输入信号的颜色是否为黄色时，判断所述RGB输入信号的R、G、B三种颜色对应的输入信号Ri、Gi、Bi中，Bi的信号值是否为最小，若Bi的信号值为最小，则确认所述RGB输入信号的颜色为黄色，若否，则确认所述RGB输入信号的颜色为非黄色。
作为一种优选方案，所述判断单元确认所述RGB输入信号为黄色时，所述计算单元继续判断所述RBG输入信号中Ri的信号值与Gi的信号值之间的大小关系，并根据该判断结果计算所述RGBY输出信号RoGoBoYo。
作为一种优选方案，所述计算单元判断若所述RBG输入信号中Ri的信号值大于Gi的信号值，则计算所述RGBY输出信号Bo＝Bi，Yo＝Gi，Go＝0，且根据三原色合成的原理，由Ri及Yo计算出输出信号Ro。
作为一种优选方案，所述计算单元由Ri及Yo计算出所述输出信号Ro时， 通过下述公式计算:Ro＝255*[Ri^γ-Yo^γ]^1/γ，其中γ表示伽马转换因子。
作为一种优选方案，所述计算单元判断若所述RBG输入信号中Ri的信号值不大于Gi的信号值，则计算所述RGBY输出信号号Bo＝Bi，Yo＝Ri，Ro＝0，且根据三原色合成的原理，由Gi及Yo计算出输出信号Go。
作为一种优选方案，所述计算单元由Ri及Yo计算出所述输出信号Go时，通过下述公式计算:Go＝255*[Gi^γ-Yo^γ]^1/γ，其中γ表示伽马转换因子。
上述的图像转换系统及图像转换方法，在将RGB信号转换为RGBY信号时，首先判断所述RGB输入信号是否为黄色，再根据不同的判断结果分别计算所述RGBY输出信号，从而使信号保真度相对较高。进一步地，在确认所述RGB输入信号为非黄色时，令RGBY输出信号的Yo＝0，RoGoBo＝RiGiBi，能够避免非黄色画面在图像转换中产生色彩偏移现象.，从而使信号保真度相对较高。
附图说明
图1为本发明实施例提供的RGB信号到RGBY信号的图像转换系统的功能模块示意图。
图2为RGB信号在色域内的分布示意图。
图3为本发明实施例提供的RGB信号到RGBY信号的图像转换方法的流程示意图。
具体实施方式
本发明实施例提供了一种RGB信号到RGBY信号的图像转换方法及系统，用以实现在不失真的情况下，将RGB信号转换为RGBY信号。
所述RGB信号到RGBY信号的图像转换方法，包括：
接收RGB输入信号；
判断所述RGB输入信号的颜色是否为黄色；以及
根据上述的判断结果，分别计算RGBY输出信号并输出。
所述RGB信号到RGBY信号的图像转换系统，包括：
信号接收单元，用于接收RGB输入信号；
判断单元，用于判断所述RGB输入信号的颜色是否为黄色；
计算单元，用于根据上述的判断结果，分别计算RGBY输出信号；以及
信号输出单元，用于输出所述RGBY输出信号。
下面结合附图，对本发明实施例提供的RGB信号到RGBY信号的图像转换方法及系统的具体实施方式进行详细地说明。
请参阅图1，图1为一种RGB信号到RGBY信号的图像转换系统S1的功能模块图。所述图像转换系统S1可以运行于一硬件上，或可以借助软件加必要的通用硬件平台的方式来实现其运行，以达到将RGB输入信号转换为RGBY信号并输出的目的。
所述图像转换系统S1包括信号接收单元10、判断单元30、计算单元50以及信号输出单元70。接收单元10用于接收所述RBG输入信号，并将所述RGB输入信号传递至所述判断单元30。所述判断单元30用于判断所述输入信号的颜色是否为黄色，并将判断结果传递至所述计算单元。所述计算单元50用于根据 所述判断单元30的判断结果，计算所述RGBY输出信号，并将所述RGBY输出信号传递至所述信号输出单元70。所述信号输出单元70用于输出所述RGBY输出信号。其中，所述图像转换系统S1的各个单元为存储在一存储器中，并能被一执行器执行的可程序化的模块。
具体如下：
所述信号接收单元10用于接收所述RGB输入信号。具体地，所述信号接收单元10用于接收所述RGB输入信号RiGiBi，并将所述输入信号RiGiBi传送至所述判断单元30中。其中，Ri表示RGB输入信号中的红色输入信号值，Gi表示RGB输入信号中的绿色输入信号值，Bi表示RGB输入信号中的蓝色输入信号值。所述RGB输入信号中每种颜色的输入信号以8位的输入信号为例，即R、G、B三种颜色对应的输入信号分别可以通过介于0～255之间的灰度值(n)来表示。
所述判断单元30用于判断所述输入信号的颜色是否为黄色。具体地，所述判断单元判断R、G、B三种颜色对应的输入信号Ri、Gi、Bi中，Bi的信号值是否为最小。若Bi的信号值并非为Ri、Gi、Bi中的最小值，则确定输入信号的颜色为非黄色；若是，则确定输入信号的颜色为黄色。所述判断单元30还用于将上述的判断结果传递至所述计算单元。
请同时参阅图3，图3示出了RGB信号在色域内的分布，图中所示ROG三角形所代表的是黄色区域，BOG三角形所代表的是蓝色区域，ROB三角形所代表的是红色区域。因此，在一RGB信号中，当B的信号在R、G、B中为最小值时，所述RGB信号的颜色分布在ROG三角形中，此时，RGB信号的颜色 为黄色，所以，所述判断单元30能够通过输入信号Ri、Gi、Bi各值的大小，判断所述RGB输入信号的颜色是否为黄色。
所述计算单元50用于根据上述的判断结果，分别计算所述RGBY输出信号RoGoBoYo。其中，Ro表示所述RGBY输出信号中的红色输出信号值，Go表示RGBY输出信号中的绿色输出信号值，Bo表示RGBY输出信号中的蓝色输出信号值，Yo表示RGBY输出信号中的黄色输出信号值。具体地，所述计算单元50根据上述的所述RGB输入信号的颜色是否为黄色的判断结果，分两种情况计算所述RGBY输出信号RoGoBoYo。具体如下：
情况一：若所述判断单元30确认所述RGB输入信号的颜色为非黄色时，所述计算单元50计算所述RGBY输出信号RoGoBoYo。其中，所述计算单元50计算令Yo＝0，Ro＝Ri，Go＝Gi，Bo＝Bi，即，所述计算单元50计算所述输出信号等于所述输入信号，且Yo＝0以避免非黄色的所述RBG输入信号在转换过程中出现漂移现象，从而使信号保真。
情况二：若所述判断单元30确认所述RGB输入信号的颜色为黄色时，则所述计算单元继续判断R、G、B三种颜色对应的输入信号Ri、Gi、Bi中，Ri的信号值是否大于Gi的信号值，并根据该判断结果，分别计算所述RGBY输出信号RoGoBoYo，具体如下：
若Ri的信号值大于Gi的信号值(Ri>Gi为真)，则所述计算单元50令输出信号Bo＝Bi，Yo＝Gi，Go＝0，并计算R的输出信号Ro:
根据三原色合成的原理，可知Y(黄色信号)可以由R(红色信号)和G(绿色信号)混合而成，即可根据等价代换思想得出：Yn＝Rn+Gn；
且知：亮度和灰阶的关系：Ln＝L255*(n/255)^2.2；
可以得出，R颜色的输出信号Ro为：
Ro＝255*[Ri^γ--Yo^γ]^1/γ，
其中n为灰阶值；Ln表示在灰阶值为n时的亮度值；γ表示伽马转换因子，一般在具体计算时，伽马转换因子γ通常设置为2.2。
根据上述算法，所述计算单元50可以计算得出所述RGBY输出信号RoGoBoYo。
若Ri的信号值不大于Gi的信号值(Ri>Gi为假)，则所述计算单元50令输出信号Bo＝Bi，Yo＝Ri，Ro＝0，并计算G的输出信号Go：
根据三原色合成的原理，可知Y(黄色信号)可以由R(红色信号)和G(绿色信号)混合而成，即可根据等价代换思想得出：Yn＝Rn+Gn；
且知：亮度和灰阶的关系：Ln＝L255*(n/255)^2.2；
可以得出，G颜色的输出信号Go为：
Go＝255*[Gi^γ--Yo^γ]^1/γ，
其中n为灰阶值；Ln表示在灰阶值为n时的亮度值；γ表示伽马转换因子，一般在具体计算时，伽马转换因子γ通常设置为2.2。
根据上述算法，所述计算单元50可以计算得出所述RGBY输出信号RoGoBoYo。
所述计算单元50还用于将上述计算所得出的上所述RGBY输出信号 RoGoBoYo传递至所述信号输出单元70中。
所述信号输出单元70，用于输出所述RGBY输出信号RoGoBoYo。
本发明实施例提供的上述图像转换系统S1在将RGB信号转换为RGBY信号时，若确认所述RGB输入信号的颜色为非黄色，则令所述RGBY输出信号RoGoBoYo中的Yo＝0，确保输出的信号中非黄色画面不会出现传统算法中容易出现的色彩漂移。若确认输入信号的颜色为黄色，再判定所述RGB输入信号中Ri和Gi的信号值大小，令Yo等于Ri和Gi中较小者信号，再令Ri和Gi中较小者信号为零以作为输出，并根据三原色合成的原理及亮度和灰阶的关系，计算出Ri和Gi中较大者的输出信号值，从而全部获取RGBY输出信号RoGoBoYo。按此方法得到最终输出的所述RGBY输出信号，解决了非黄色颜色向Y子像素色度方向偏移的问题，同时使黄色的表现更加鲜艳。
请同时参阅图3，图3示出了本发明一实施例中提供的一种RGB信号到RGBY信号的图像转换方法的流程示意图。所述RGB信号到RGBY信号的图像转换方法，其应用上述的图像转换系统S1，以将RGB信号转换为RGBY信号。所述图像转换系统S1包括信号接收单元10、判断单元30、计算单元50以及信号输出单元70。接收单元10用于接收所述RBG输入信号，并将所述RGB输入信号传递至所述判断单元30。所述判断单元30用于判断所述输入信号的颜色是否为黄色，并将判断结果传递至所述计算单元。所述计算单元50用于根据所述判断单元30的判断结果，计算所述RGBY输出信号，并将所述RGBY输出信号传递至所述信号输出单元70。所述信号输出单元70用于输出所述RGBY输出信号。所述图像转换方法包括以下步骤：
步骤S101：接收RGB输入信号RiGiBi。具体地，所述信号接收单元10接收所述RGB输入信号RiGiBi。
步骤S103：判断所述RGB输入信号的颜色是否为黄色，若否，执行步骤S105，若是，则执行步骤S107。具体地，所述判断单元30判断R、G、B三种颜色对应的输入信号Ri、Gi、Bi中，Bi的信号值是否为最小。若Bi的信号值并非为Ri、Gi、Bi中的最小值，则确定所述RGB输入信号的颜色为非黄色，执行步骤S105；若Bi的信号值为Ri、Gi、Bi中的最小值，则确定所述RGB输入信号的颜色为黄色，执行步骤S107。
步骤S105：根据上述的判断结果，计算所述RGBY输出信号RoGoBoYo，并执行步骤S113。具体地，若所述判断单元30确认所述输入信号的颜色为非黄色时，所述计算单元50计算所述RGBY输出信号RoGoBoYo。具体如下：
所述计算单元50令Yo＝0，Ro＝Ri，Go＝Gi，Bo＝Bi，即，所述计算单元50计算所述RBGY输出信号等于所述RBG输入信号，以避免非黄色的输入信号在图像转换过程中出现漂移现象，从而使信号保真。所述计算单元50计算得出所述RBGY输出信号RoGoBoYo后，将所述RBGY输出信号传送至所述信号输出单元70中，执行步骤S113。
步骤S107：继续判断R、G、B三种颜色对应的输入信号Ri、Gi、Bi中，Ri的信号值是否大于Gi的信号值，若是，执行步骤S109，若否，则执行步骤S111。具体地，若所述判断单元30确认所述RGB输入信号的颜色为黄色时，所述计算单元继续判断R、G、B三种颜色对应的输入信号Ri、Gi、Bi中，Ri的信号值是否大于Gi的信号值，若是，执行步骤S109，若Ri的信号值不大于 Gi的信号值，则执行步骤S111。
步骤S109：计算所述RGBY输出信号RoGoBoYo，并执行步骤S113。具体地，若所述计算单元50判断Ri的信号值大于Gi的信号值(Ri>Gi为真)，则继续计算所述RGBY输出信号RoGoBoYo。具体如下：
所述计算单元50令输出信号Bo＝Bi，Yo＝Gi，Go＝0，并计算R的输出信号Ro:
根据三原色合成的原理，可知Y(黄色信号)可以由R(红色信号)和G(绿色信号)混合而成，即可根据等价代换思想得出：Yn＝Rn+Gn；
且知：亮度和灰阶的关系：Ln＝L255*(n/255)^2.2；
可以得出，R颜色的输出信号Ro为：
Ro＝255*[Ri^γ--Yo^γ]^1/γ，
其中n为灰阶值；Ln表示在灰阶值为n时的亮度值；γ表示伽马转换因子，一般在具体计算时，伽马转换因子γ通常设置为2.2。
所述计算单元50计算得出所述RGBY输出信号RoGoBoYo后，将所述RBGY输出信号传送至所述信号输出单元70中，执行步骤S113。
步骤S111：计算所述RGBY输出信号RoGoBoYo，并执行步骤S113。具体地，若所述计算单元50判断Ri的信号值不大于Gi的信号值(Ri>Gi为假)，则继续计算所述RGBY输出信号RoGoBoYo。具体如下：
所述计算单元50令输出信号Bo＝Bi，Yo＝Ri，Ro＝0，并计算G的输出信号Go：
根据三原色合成的原理，可知Y(黄色信号)可以由R(红色信号)和G(绿色信号)混合而成，即可根据等价代换思想得出：Yn＝Rn+Gn；
且知：亮度和灰阶的关系：Ln＝L255*(n/255)^2.2；
可以得出，G颜色的输出信号Go为：
Go＝255*[Gi^γ--Yo^γ]^1/γ
其中n为灰阶值；Ln表示在灰阶值为n时的亮度值；γ表示伽马转换因子，一般在具体计算时，伽马转换因子γ通常设置为2.2。
所述计算单元50计算得出所述RGBY输出信号RoGoBoYo后，将所述RBGY输出信号传送至所述信号输出单元70中，执行步骤S113。
步骤S113：输出所述RGBY输出信号RoGoBoYo。具体地，所述信号输出单元70输出所述RGBY输出信号RoGoBoYo。
本发明实施例提供的一种RGB信号到RGBY信号的图像转换方法及系统，在将RGB信号转换为RGBY信号时，若确认所述RGB输入信号的颜色为非黄色，则令所述RGBY输出信号RoGoBoYo中的Yo＝0，确保输出的信号中非黄色画面不会出现传统算法中容易出现的色彩漂移。若确认输入信号的颜色为黄色，再判定所述RGB输入信号中Ri和Gi的信号值大小，令Yo等于Ri和Gi中较小者信号，再令Ri和Gi中较小者信号为零以作为输出，并根据三原色合成的原理及亮度和灰阶的关系，计算出Ri和Gi中较大者的输出信号值，从而全部获取RGBY输出信号RoGoBoYo。按此方法得到最终输出的所述RGBY输出信号，解决了非黄色颜色向Y子像素色度方向偏移的问题，同时使黄色的表现更加鲜艳。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到本发明实施例可以通过硬件实现，也可以借助软件加必要的通用硬件平台的方式来实现。基于这样的理解，本发明实施例的技术方案可以以软件产品的形式体现出来，该软件产品可以存储在一个非易失性存储介质(可以是CD-ROM，U盘，移动硬盘等)中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述的方法。
本领域技术人员可以理解附图只是一个优选实施例的示意图，附图中的模块或流程并不一定是实施本发明所必须的。
本领域技术人员可以理解实施例中的系统中的功能模块/功能单元可以按照实施例描述进行分布于实施例的系统中，也可以进行相应变化位于不同于本实施例的一个或多个系统中。上述实施例的功能功能模块/功能单元可以合并为一个功能模块/功能单元，也可以进一步拆分成多个子功能模块/功能单元。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (10)

  1. 一种RGB信号到RGBY信号的图像转换方法，其中，包括步骤：
    接收RGB输入信号RiGiBi；
    判断所述RGB输入信号的颜色是否为黄色；以及
    确认所述RGB输入信号为非黄色时，计算RGBY输出信号RoGoBoYo并输出，其中Yo＝0，RoGoBo＝RiGiBi。
  2. 如权利要求1所述的图像转换方法，其中：判断所述RGB输入信号的颜色是否为黄色时，判断所述RGB输入信号的R、G、B三种颜色对应的输入信号Ri、Gi、Bi中，Bi的信号值是否为最小，若Bi的信号值为最小，则确认所述RGB输入信号的颜色为黄色，若否，则确认所述RGB输入信号的颜色为非黄色。
  3. 如权利要求1所述的图像转换方法，其中：确认所述RGB输入信号为黄色时，继续判断所述RBG输入信号中Ri的信号值与Gi的信号值之间的大小关系，并根据该判断结果计算所述RGBY输出信号RoGoBoYo。
  4. 如权利要求3所述的图像转换方法，其中：判断若所述RBG输入信号中Ri的信号值大于Gi的信号值，则计算所述RGBY输出信号Bo＝Bi，Yo＝Gi，Go＝0，且根据三原色合成的原理，由Ri及Yo计算出输出信号Ro。
  5. 如权利要求4所述的图像转换方法，其中：由Ri及Yo计算出所述输出信号Ro时，通过下述公式计算:
    Ro＝255*[Ri^γ-Yo^γ]^1/γ，
    其中γ表示伽马转换因子。
  6. 如权利要求3所述的图像转换方法，其中：判断若所述RBG输入信号中Ri的信号值不大于Gi的信号值，则计算所述RGBY输出信号号Bo＝Bi，Yo＝Ri，Ro＝0，且根据三原色合成的原理，由Gi及Yo计算出输出信号Go。
  7. 如权利要求6所述的图像转换方法，其中：由Ri及Yo计算出所述输出信号Go时，通过下述公式计算:
    Go＝255*[Gi^γ-Yo^γ]^1/γ，
    其中γ表示伽马转换因子。
  8. 一种RGB信号到RGBY信号的图像转换系统，其中，包括：
    信号接收单元，用于接收RGB输入信号RiGiBi；
    判断单元，用于判断所述RGB输入信号的颜色是否为黄色；
    计算单元，用于在所述判断单元确认所述RGB输入信号为非黄色时，计算RGBY输出信号RoGoBoYo，其中Yo＝0，RoGoBo＝RiGiBi；以及
    信号输出单元，用于输出所述RGBY输出信号RoGoBoYo。
  9. 如权利要求8所述的图像转换系统，其中：所述判断单元确认所述RGB输入信号为黄色时，所述计算单元继续判断所述RBG输入信号中Ri的信号值与Gi的信号值之间的大小关系，并根据该判断结果计算所述RGBY输出信号RoGoBoYo。
  10. 如权利要求9所述的图像转换系统，其中：所述计算单元判断若所述RBG输入信号中Ri的信号值大于Gi的信号值，则计算所述RGBY输出信号Bo＝Bi，Yo＝Gi，Go＝0，且根据三原色合成的原理，由Ri及Yo计算出输出信号Ro:
    Ro＝255*[Ri^γ-Yo^γ]^1/γ，其中γ表示伽马转换因子；
    或/及，所述计算单元判断若所述RBG输入信号中Ri的信号值不大于Gi的信号值，则计算所述RGBY输出信号号Bo＝Bi，Yo＝Ri，Ro＝0，且根据三原色合成的原理，由Gi及Yo计算出输出信号Go:
    Go＝255*[Gi^γ-Yo^γ]^1/γ，其中γ表示伽马转换因子。
PCT/CN2016/070146 2015-12-09 2016-01-05 Rgb信号到rgby信号的图像转换系统及方法 Ceased WO2017096682A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/914,021 US10171783B2 (en) 2015-12-09 2016-01-05 RGB signal to RGBY signal image converting system and method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510906266.7A CN105528982B (zh) 2015-12-09 2015-12-09 Rgb信号到rgby信号的图像转换系统及方法
CN201510906266.7 2015-12-09

Publications (1)

Publication Number Publication Date
WO2017096682A1 true WO2017096682A1 (zh) 2017-06-15

Family

ID=55771165

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/070146 Ceased WO2017096682A1 (zh) 2015-12-09 2016-01-05 Rgb信号到rgby信号的图像转换系统及方法

Country Status (3)

Country Link
US (1) US10171783B2 (zh)
CN (1) CN105528982B (zh)
WO (1) WO2017096682A1 (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105472364B (zh) * 2015-12-14 2017-12-22 合一智能科技（深圳）有限公司 液晶显示屏的色彩信号转换方法及装置
KR102503770B1 (ko) * 2018-10-29 2023-02-27 삼성디스플레이 주식회사 영상 데이터 처리 장치 및 이를 포함하는 표시 장치
KR102692423B1 (ko) * 2018-11-16 2024-08-06 엘지디스플레이 주식회사 데이터 구동 회로, 디스플레이 패널 및 디스플레이 장치
CN113132704B (zh) * 2020-01-15 2022-08-19 华为技术有限公司 一种图像处理的方法、装置、终端以及存储介质
CN111629480A (zh) * 2020-06-11 2020-09-04 深圳市乐格蕴未科技有限公司 一种新型六色led灯光软件控制系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090160871A1 (en) * 2007-12-21 2009-06-25 Wintek Corporation Image processing method, image data conversion method and device thereof
CN102479482A (zh) * 2010-11-26 2012-05-30 乐金显示有限公司 图像显示装置及其驱动方法
JP2013041720A (ja) * 2011-08-12 2013-02-28 Sharp Corp 照明装置、照明システムおよび制御装置
CN103428512A (zh) * 2013-07-30 2013-12-04 京东方科技集团股份有限公司 一种rgb信号到rgby信号的图像转换方法及装置
CN104269129A (zh) * 2014-09-26 2015-01-07 京东方科技集团股份有限公司 一种图像的显示方法及显示装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX2009003695A (es) * 2006-10-12 2009-04-23 Koninkl Philips Electronics Nv Metodo de mapeo de color.
US8169389B2 (en) * 2008-07-16 2012-05-01 Global Oled Technology Llc Converting three-component to four-component image
JP4956686B2 (ja) * 2010-10-26 2012-06-20 シャープ株式会社 表示装置
JP5663063B2 (ja) * 2012-07-20 2015-02-04 シャープ株式会社 表示装置
US9666162B2 (en) * 2013-07-30 2017-05-30 Boe Technology Group Co., Ltd. Method and apparatus for converting image from RGB signals to RGBY signals
CN104299598B (zh) * 2014-11-04 2017-01-25 深圳市华星光电技术有限公司 一种三色数据到四色数据的转换系统及转换方法
US9904048B2 (en) * 2014-12-23 2018-02-27 Amazon Technologies, Inc. Electrowetting display device with shaped colour filter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090160871A1 (en) * 2007-12-21 2009-06-25 Wintek Corporation Image processing method, image data conversion method and device thereof
CN102479482A (zh) * 2010-11-26 2012-05-30 乐金显示有限公司 图像显示装置及其驱动方法
JP2013041720A (ja) * 2011-08-12 2013-02-28 Sharp Corp 照明装置、照明システムおよび制御装置
CN103428512A (zh) * 2013-07-30 2013-12-04 京东方科技集团股份有限公司 一种rgb信号到rgby信号的图像转换方法及装置
CN104269129A (zh) * 2014-09-26 2015-01-07 京东方科技集团股份有限公司 一种图像的显示方法及显示装置

Also Published As

Publication number Publication date
US20180176525A1 (en) 2018-06-21
CN105528982B (zh) 2019-06-25
US10171783B2 (en) 2019-01-01
CN105528982A (zh) 2016-04-27

Similar Documents

Publication Publication Date Title
CN103218988B (zh) 一种rgb信号到rgbw信号的图像转换方法及装置
CN107863081B (zh) 多基色转换方法及其转换器、显示控制方法、显示装置
CN104091578B (zh) 一种rgb信号到rgbw信号的图像转换方法及装置
CN108122546B (zh) 显示设备及其图像处理方法
US10347198B2 (en) Image displaying methods and display devices
JP2017538149A (ja) 液晶パネル及びその駆動方法
WO2017096682A1 (zh) Rgb信号到rgby信号的图像转换系统及方法
CN103428512B (zh) 一种rgb信号到rgby信号的图像转换方法及装置
CN104811676B (zh) 色域映射方法及其装置
KR20170031742A (ko) Rgb 에서 rgbw 로의 색상 전환 시스템 및 방법
JP2017534079A (ja) 液晶パネル及びその駆動方法
CN104299599A (zh) 一种rgb数据到wrgb数据的转换系统及转换方法
WO2016078100A1 (zh) 一种rgb数据到rgbw数据的转换系统及转换方法
CN104778929B (zh) 一种显示面板的驱动数据的转换方法及转换系统
CN108717839B (zh) 一种rgb到rgbw的转换方法、装置及存储介质
JP6375437B2 (ja) 液晶表示装置・四色変換器及びｒｇｂデータからｒｇｂｗデータへの変換方法
WO2015172336A1 (zh) 图像的显示方法以及显示系统
US9666162B2 (en) Method and apparatus for converting image from RGB signals to RGBY signals
WO2016045251A1 (zh) 一种图像的显示方法及显示装置
CN103985348A (zh) 四色转换器、显示装置及三色数据到四色数据的转换方法
CN105684071B (zh) 信号生成装置、信号生成程序、信号生成方法及图像显示装置
CN104639925A (zh) 一种rgb信号到rgbw信号的图像转换方法及装置
US9437144B2 (en) Liquid crystal display panel, image displaying method and image displaying system
US9779654B2 (en) Method for image display and display system
WO2015196614A1 (zh) 白平衡参数调整赋值方法、实现方法及实现装置

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 14914021

Country of ref document: US

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16871893

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16871893

Country of ref document: EP

Kind code of ref document: A1