JP2010271367A5 - Matrix coefficient setting method and image display device - Google Patents
Matrix coefficient setting method and image display device Download PDFInfo
- Publication number
- JP2010271367A5 JP2010271367A5 JP2009120738A JP2009120738A JP2010271367A5 JP 2010271367 A5 JP2010271367 A5 JP 2010271367A5 JP 2009120738 A JP2009120738 A JP 2009120738A JP 2009120738 A JP2009120738 A JP 2009120738A JP 2010271367 A5 JP2010271367 A5 JP 2010271367A5
- Authority
- JP
- Japan
- Prior art keywords
- color
- display device
- dimensional lut
- matrix
- color conversion
- 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.)
- Granted
Links
Description
請求項１の発明によるマトリックス係数設定方法は、マトリックスと１次元ＬＵＴを用いて液晶表示装置の表示特性を補正する色変換方法において、前記液晶表示装置の表示特性を示す３次元ＬＵＴを算出し、前記３次元ＬＵＴを用いて、前記液晶表示装置への入力画像に対して行うマトリックスの係数を設定することを特徴とする。
請求項２の発明によるマトリックス係数設定方法は、マトリックスと１次元ＬＵＴを用いて液晶表示装置の表示特性を補正する色変換方法において、複数の入力色に対して前記液晶表示装置に表示させた時の測色値を均等色空間で算出し、前記入力色と前記均等色空間の前記測色値を関連づけて３次元ＬＵＴを算出し、前記液晶表示装置に表示させたい目標色を算出し、前記目標色の均等色空間における第１の色座標を算出し、前記３次元ＬＵＴ上で前記目標色に隣接する複数の格子点を補間して第２の色座標を算出し、前記第１の色座標と、前記第２の色座標との差が小さくなるように、マトリックスの係数を設定することを特徴とする。
The matrix coefficient setting method according to the invention of claim 1 is a color conversion method for correcting display characteristics of a liquid crystal display device using a matrix and a one- dimensional LUT, and calculates a three-dimensional LUT indicating the display characteristics of the liquid crystal display device , A matrix coefficient to be applied to an input image to the liquid crystal display device is set using the three-dimensional LUT.
A matrix coefficient setting method according to a second aspect of the present invention is a color conversion method for correcting display characteristics of a liquid crystal display device using a matrix and a one-dimensional LUT, wherein a plurality of input colors are displayed on the liquid crystal display device. The colorimetric values of the colorimetric values are calculated in a uniform color space, a three-dimensional LUT is calculated by associating the input colors with the colorimetric values of the uniform color space, and a target color to be displayed on the liquid crystal display device is calculated, A first color coordinate in a uniform color space of a target color is calculated, a second color coordinate is calculated by interpolating a plurality of grid points adjacent to the target color on the three-dimensional LUT, and the first color The matrix coefficient is set so that the difference between the coordinates and the second color coordinates is small.
Claims (5)
前記液晶表示装置の表示特性を示す３次元ＬＵＴを算出し、
前記３次元ＬＵＴを用いて、前記液晶表示装置への入力画像に対して行うマトリックスの係数を設定することを特徴とするマトリックス係数設定方法。 In a color conversion method for correcting display characteristics of a liquid crystal display device using a matrix and a one-dimensional LUT,
Calculating a three-dimensional LUT indicating the display characteristics of the liquid crystal display device ;
Using the 3-dimensional LUT, matrix coefficients setting method and setting the coefficients of the matrix to be performed for the input image to the liquid crystal display device.
複数の入力色に対して前記液晶表示装置に表示させた時の測色値を均等色空間で算出し、
前記入力色と前記均等色空間の前記測色値を関連づけて３次元ＬＵＴを算出し、
前記液晶表示装置に表示させたい目標色を算出し、
前記目標色の均等色空間における第１の色座標を算出し、
前記３次元ＬＵＴ上で前記目標色に隣接する複数の格子点を補間して第２の色座標を算出し、
前記第１の色座標と、前記第２の色座標との差が小さくなるように、マトリックスの係数を設定することを特徴とするマトリックス係数設定方法。 In a color conversion method for correcting display characteristics of a liquid crystal display device using a matrix and a one-dimensional LUT,
Calculate colorimetric values when displayed on the liquid crystal display device for a plurality of input colors in a uniform color space;
A three-dimensional LUT is calculated by associating the input color with the colorimetric value of the uniform color space;
Calculate a target color to be displayed on the liquid crystal display device ,
Calculating a first color coordinate in the uniform color space of the target color;
A second color coordinate is calculated by interpolating a plurality of grid points adjacent to the target color on the three-dimensional LUT,
The first color coordinates such that said difference between the second color coordinates is small, the matrix coefficient setting method and setting the coefficients of the matrix.
前記３次元ＬＵＴ上で前記目標色に隣接する複数の格子点を抽出し、
前記隣接する複数の格子点の前記３次元ＬＵＴに対応する入力色をそれぞれ求め、
前記対応する入力色に前記色変換を施してから前記均等色空間に変換し、
前記均等色空間で、前記３次元ＬＵＴ上で前記目標色に隣接する複数の格子点を補間して前記第２の色座標を算出することを特徴とするマトリックス係数設定方法。 In the matrix coefficient setting method according to claim 2,
Extracting a plurality of grid points adjacent to the target color on the three-dimensional LUT;
Obtaining respective input colors corresponding to the three-dimensional LUT of the plurality of adjacent grid points;
Performing the color conversion on the corresponding input color and then converting to the uniform color space;
A matrix coefficient setting method comprising: calculating a second color coordinate by interpolating a plurality of grid points adjacent to the target color on the three-dimensional LUT in the uniform color space.
前記第１の色変換がされた後の画像を表示する表示手段とを備えることを特徴とする画像表示装置。 A first color conversion unit that performs a first color conversion on an input image using the color conversion parameter set by the matrix coefficient setting method according to any one of claims 1 to 3;
An image display device comprising: display means for displaying an image after the first color conversion.
表示パネルの原色ごとに用意した色変換テーブルを用いて前記入力画像に対する第２の色変換を行う第２の色変換手段をさらに備えることを特徴とする画像表示装置。
The image display device according to claim 4,
An image display apparatus, further comprising: a second color conversion unit that performs a second color conversion on the input image using a color conversion table prepared for each primary color of the display panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009120738A JP5526598B2 (en) | 2009-05-19 | 2009-05-19 | Matrix coefficient setting method and image display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009120738A JP5526598B2 (en) | 2009-05-19 | 2009-05-19 | Matrix coefficient setting method and image display device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2010271367A JP2010271367A (en) | 2010-12-02 |
| JP2010271367A5 true JP2010271367A5 (en) | 2013-04-11 |
| JP5526598B2 JP5526598B2 (en) | 2014-06-18 |
Family
ID=43419457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2009120738A Active JP5526598B2 (en) | 2009-05-19 | 2009-05-19 | Matrix coefficient setting method and image display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5526598B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6107164B2 (en) | 2012-02-15 | 2017-04-05 | 株式会社リコー | Color measuring device, image forming apparatus, color measuring method and color measuring system |
| US10152935B2 (en) | 2016-02-29 | 2018-12-11 | Mitsubishi Electric Corporation | Color correction apparatus, display apparatus, and color correction method |
| JP2021018360A (en) | 2019-07-22 | 2021-02-15 | 三菱電機株式会社 | Color correction device, display device, and color correction method |
| CN111784558A (en) * | 2020-06-18 | 2020-10-16 | 维沃移动通信有限公司 | Image processing method and device, electronic equipment and computer storage medium |
| CN115083303B (en) * | 2022-08-16 | 2022-11-08 | 成都索贝数码科技股份有限公司 | Method, medium and device for correcting spatial color of LED display screen under mobile visual angle |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4605987B2 (en) * | 2000-08-28 | 2011-01-05 | セイコーエプソン株式会社 | Projector, image processing method, and information storage medium |
| JP2004215222A (en) * | 2002-12-20 | 2004-07-29 | Fuji Xerox Co Ltd | Color transform processing device |
| JP4808588B2 (en) * | 2006-10-25 | 2011-11-02 | 株式会社ナナオ | Display device, display device color calibration program, and three-dimensional lookup table creation method |
| JP2008245274A (en) * | 2008-03-10 | 2008-10-09 | Konica Minolta Holdings Inc | Method and apparatus for regulating color conversion profile |
-
2009
- 2009-05-19 JP JP2009120738A patent/JP5526598B2/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2008268967A5 (en) | ||
| JP2009170970A5 (en) | ||
| JP2013251597A5 (en) | ||
| JP2009246625A5 (en) | ||
| JP2010271367A5 (en) | Matrix coefficient setting method and image display device | |
| JP2010252037A5 (en) | ||
| JP2006033062A5 (en) | ||
| JP2013522699A5 (en) | ||
| EP2214159A3 (en) | Display control apparatus and display control method | |
| WO2009117143A3 (en) | Automated heat exchanger tube cleaning assembly and system | |
| JP2009038523A5 (en) | ||
| JP2010022045A5 (en) | ||
| WO2012096498A3 (en) | Method for managing content in a plurality of devices using a display apparatus | |
| JP2013219736A5 (en) | ||
| JP2012204852A5 (en) | ||
| JP2012239018A5 (en) | ||
| EP2642761A3 (en) | Apparatus and method for displaying three-dimensional image | |
| JP2016173477A5 (en) | ||
| JP2007105400A5 (en) | ||
| JP2011028743A5 (en) | Image processing apparatus and image processing method | |
| JP2018124968A5 (en) | ||
| JP2014060704A5 (en) | ||
| JP2011042162A5 (en) | ||
| JP2014222323A5 (en) | CALIBRATION DEVICE, ITS CONTROL METHOD, IMAGE DISPLAY DEVICE, AND RECORDING MEDIUM | |
| JP2012215660A5 (en) |