COLOR CONVERTING APPARATUS, PROGRAM, IMAGE DISPLAY DEVICE, AND MOBILE TERMINAL DEVICE

• US 20090052773A1
• Filed: 01/19/2006
• Published: 02/26/2009
• Est. Priority Date: 03/10/2005
• Status: Abandoned Application

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Oohara, Akemi
• Application Number:
  US11/817,863
• Publication Number:
  US 20090052773A1
• Time in Patent Office: Days
• US Class Current: 382/167
• CPC Class Codes: G06T 11/001 Texturing; Colouring; Generation of texture or colour inpainting G06T5/77
• CPC Class Codes: G09G 2340/06 Colour space transformation
• CPC Class Codes: G09G 3/2003 Display of colours specific for liquid crystal displays G09G3/3607
• CPC Class Codes: G09G 5/02 characterised by the way in which colour is displayed details of colour display specific for CRTs G09G1/28; specific for flat matrix panels other than liquid crystal displays G09G3/2003; specific for liquid crystal displays G09G3/3607
• CPC Class Codes: H04N 1/6058 Reduction of colour to a range of reproducible colours, e.g. to ink- reproducible colour gamut
• CPC Class Codes: H04N 1/6075 Corrections to the hue
• CPC Class Codes: H04N 1/62 Retouching, i.e. modification of isolated colours only or in isolated picture areas only
• CPC Class Codes: H04N 9/643 Hue control means, e.g. flesh tone control
• CPC Class Codes: H04N 9/67 for matrixing camera processing pipelines for matrixing of colour signals H04N23/85

Abstract

A color converting apparatus which is used to correct the hue shift without narrowing the color reproduction region, has a small circuit scale, and does not need many memory resources. A primary area detector 10 determines to what area out of six areas classified according to the relation of magnitude of the RGB the input RGB values belong and outputs the minimum values of RGB. A border coefficient table 11 outputs a coefficient determining the border to further divide into two the six primary areas according to the parameter indicating the primary area. The coefficient and the RGB values are multiplied and then added. A comparator 12 compares the addition result with the RGB minimum values output from the primary area detector 10, and the result is input into a matrix coefficient table 13. The matrix coefficient table 13 outputs the coefficient of a matrix calculation to convert the RGB value to output R′, G′, B′ values corresponding to the area to which the input RGB values belong according to the parameter indicating the primary area and the result of the comparison by the comparator 12.

Claims

1-8. -8. (canceled)

9. A color converting apparatus that creates second color information by converting first color information, wherein

the first color information and the second color information respectively include data of a plurality of colors that each are independently controllable, and wherein

a different color conversion is enabled for each area that is classified based on a relation of magnitude among data of a plurality of colors that the first color information includes and a relation of magnitude among addition result of results of multiplying the plurality of color data respectively by arbitrary constants.

16. An image display device comprising the color converting apparatus as defined in claim 9.

17. A mobile terminal device comprising the image display device as defined in claim 16 as a display means.

10. A color converting apparatus that creates the second color information by converting the first color information,

wherein the first color information and the second color information respectively include data of three colors that each is independently controllable, and wherein

a different color conversion is enabled for each of 12 areas that are classified based on a relation of magnitude among data of three colors that the first color information includes and a relation of magnitude among minimum value of the data of the three colors and addition result of the results of multiplying the other two data except the minimum value respectively by arbitrary constants.

11. The color converting apparatus as defined in claim 10, wherein

the same color conversion is executed for at least three pairs of six pairs each comprising two adjacent areas that are classified based on the relation of magnitude among the minimum value of the three color data, and the addition result of the results of multiplying the other two data respectively by an arbitrary constants, of the 12 areas.

12. The color converting apparatus as defined in claim 10, wherein

the color conversion for the each area is executed by three-dimensional matrix calculation.

13. The color apparatus as defined in claim 11, wherein

the color conversion for the each area is executed by three-dimensional matrix calculation.

18. An image display device comprising the color converting apparatus as defined in claim 10.

19. A mobile terminal device comprising the image display device as defined in claim 18 as a display means.

20. An image display device comprising the color converting apparatus as defined in claim 11.

21. A mobile terminal device comprising the image display device as defined in claim 20 as a display means.

22. An image display device comprising the color converting apparatus as defined in claim 12.

23. A mobile terminal device comprising the image display device as defined in claim 22 as a display means.

24. An image display device comprising the color converting apparatus as defined in claim 13.

25. A mobile terminal device comprising the image display device as defined in claim 24 as a display means.

14. A computer program that executes a color conversion by creating second color information by converting first color information,

wherein the first color information and the second color information respectively include data of a plurality of colors that each are independently controllable, and wherein

a different color conversion is enabled for each area that is classified based on relation of magnitude among data of a plurality of colors that the first color information includes and a relation of magnitude among addition result of results of multiplying the plurality of color data respectively by arbitrary constants.

15. A computer program that executes a color conversion by creating second color information by converting first color information,

wherein the first color information and the second color information respectively include data of three colors that each is independently controllable, and wherein

a different color conversion is enabled for each of 12 areas that are classified based on a relation of magnitude among data of three colors that the first color information includes and a relation of magnitude among minimum value of the data of three colors and addition result of the results of multiplying the other two data except the minimum value respectively by arbitrary constants.