Color reproducing apparatus

• US 20040017379A1
• Filed: 05/19/2003
• Published: 01/29/2004
• Est. Priority Date: 05/23/2002
• Status: Abandoned Application

• Current Assignee: Olympus Optical Company Ltd. (Olympus Corporation)
• Original Assignee: Olympus Optical Company Ltd. (Olympus Corporation)
• Inventors: Ajito, Takeyuki, Komiya, Yasuhiro
• Application Number:
  US10/441,739
• Publication Number:
  US 20040017379A1
• Time in Patent Office: Days
• US Class Current: 345/600
• CPC Class Codes: H04N 1/6011 with simulation on a subsidiary picture reproducer H04N1/622 takes precedence; matching two or more picture reproducers H04N1/6052
• CPC Class Codes: H04N 1/6086 by scene illuminant, i.e. conditions at the time of picture capture, e.g. flash, optical filter used, evening, cloud, daylight, artificial lighting, white point measurement, colour temperature
• CPC Class Codes: H04N 1/6088 by viewing conditions, i.e. conditions at picture output

Abstract

A color reproducing apparatus of the present invention color converts an original image, which has been produced on an image output device while the image output device is monitored under a color reproduction environment of a production phase, into a view image to be viewed on the same image output device having produced the original image, or on another image output device, under a color reproduction environment of a view phase. The color reproducing apparatus includes a profile storage for storing information relating to the color reproduction environment of the production phase, information relating to the color reproduction environment of the view phase, and information relating to the image output devices of the production phase and the view phase, and a color corrector for color converting the original image into the view image using the information stored in the profile storage.

Claims

1. A color reproducing apparatus for color converting an original image, which has been produced on an image output device while the image output device is being monitored under a color reproduction environment of a production phase, into a view image to be viewed on the same image output device having produced the original image, or on another image output device, under a color reproduction environment of a view phase, the color reproducing apparatus comprising:

profile storage means for storing information relating to the color reproduction environment of the production phase, information relating to the color reproduction environment of the view phase, and information relating to the image output devices of the production phase and the view phase, and

color correction means for color converting the original image into the view image using the information stored in the profile storage means.

2. The color reproducing apparatus according to claim 1, wherein the image output device is a multi-primary-color display device that performs a color display in multi primary colors of at least four primary colors.

3. The color reproducing apparatus according to claim 1, wherein the original images include a plurality of images that are produced by a plurality of image output devices while the plurality of image output devices are being monitored under a plurality of color reproduction environments, and

wherein the color correction means color converts the original image into the view image using information relating to the plurality of color reproduction environments used at a plurality of productions, information relating to the image output devices used at the plurality of productions, information relating to a color reproduction environment of one view phase, and information relating to an image output device of the one view phase, stored in the profile storage means, and

the color correction means further comprises a synthesizing unit for synthesizing the plurality of view images color converted by the color correction means into a single view image.

4. The color reproducing apparatus according to claim 3, wherein the information relating to the color reproduction environment of the production phase contains information relating to illumination of the production phase.

5. The color reproducing apparatus according to claim 4, wherein the information relating to the illumination of the production phase contains spectrum information of the illumination acquired through measurement, or spectrum information estimated and selected from a plurality of pieces of spectrum information prepared beforehand.

6. The color reproducing apparatus according to claim 5, wherein the information relating to the color reproduction environment of the production phase contains information relating to a vision characteristic of a creator.

7. The color reproducing apparatus according to claim 6, wherein the information relating to the vision characteristic of the creator contains one of a standardized color matching function such as an XYZ color matching function standardized by the International Commission on Illumination (CIE), a color matching function acquired by measuring the creator, and a color matching function estimated and selected from a plurality of color matching functions prepared beforehand.

8. The color reproducing apparatus according to claim 7, wherein the image output device is a multi-primary-color display device that performs a color display in multi primary colors of at least four primary colors.

9. The color reproducing apparatus according to claim 3, wherein the information relating to the color reproduction environment of the view phase contains information relating to illumination of the view phase.

10. The color reproducing apparatus according to claim 9, wherein the information relating to the illumination of the view phase contains spectrum information of the illumination acquired through measurement, or spectrum information estimated and selected from a plurality of pieces of spectrum information prepared beforehand.

11. The color reproducing apparatus according to claim 10, wherein the information relating to the color reproduction environment of the view phase contains information relating to a vision characteristic of a viewer.

12. The color reproducing apparatus according to claim 11, wherein the information relating to the vision characteristic of the viewer contains one of a standardized color matching function such as an XYZ color matching function standardized by the International Commission on Illumination (CIE), a color matching function acquired by measuring the viewer, and a color matching function estimated and selected from a plurality of color matching functions prepared beforehand.

13. The color reproducing apparatus according to claim 12, wherein the image output device is a multi-primary-color display device that performs a color display in multi primary colors of at least four primary colors.

14. The color reproducing apparatus according to claim 3, wherein the information relating to the color reproduction environment of the production phase contains information relating to a vision characteristic of a creator.

15. The color reproducing apparatus according to claim 14, wherein the information relating to the vision characteristic of the creator contains one of a standardized color matching function such as an XYZ color matching function standardized by the International Commission on Illumination (CIE), a color matching function acquired by measuring the creator, and a color matching function estimated and selected from a plurality of color matching functions prepared beforehand.

16. The color reproducing apparatus according to claim 3, wherein the information relating to the color reproduction environment of the view phase contains information relating to a vision characteristic of a viewer.

17. The color reproducing apparatus according to claim 16, wherein the information relating to the vision characteristic of the viewer contains one of a standardized color matching function such as an XYZ color matching function standardized by the International Commission on Illumination (CIE), a color matching function acquired by measuring the viewer, and a color matching function estimated and selected from a plurality of color matching functions prepared beforehand.

18. The color reproducing apparatus according to claim 3, wherein the information relating to the color reproduction environment of the production phase contains information of an object in the original image.

19. The color reproducing apparatus according to claim 18, wherein the information of the object is provided on every region which is a segment of the original image that is segmented into a plurality of regions.

20. The color reproducing apparatus according to claim 18, wherein the information of the object contains information representing a statistical characteristic of a spectrum of the object.

21. The color reproducing apparatus according to claim 3, wherein the information relating to the color reproduction environment of the production phase contains information relating to illumination of the production phase, and wherein the information relating to the color reproduction environment of the view phase contains information relating to illumination of the view phase.

22. The color reproducing apparatus according to claim 21, wherein the information relating to the color reproduction environment of the production phase contains information of an object in the original image.

23. The color reproducing apparatus according to claim 22, wherein the information of the object is provided on every region which is a segment of the original image that is segmented into a plurality of regions.

24. The color reproducing apparatus according to claim 3, wherein the image output device is a multi-primary-color display device that performs a color display in multi primary colors of at least four primary colors.

25. The color reproducing apparatus according to claim 21, wherein the information relating to the illumination of the production phase contains spectrum information of the illumination acquired through measurement, or spectrum information estimated and selected from a plurality of pieces of spectrum information prepared beforehand, and

wherein the information relating to the illumination of the view phase contains spectrum information of the illumination acquired through measurement, or spectrum information estimated and selected from a plurality of pieces of spectrum information prepared beforehand.

26. The color reproducing apparatus according to claim 25, wherein the information relating to the color reproduction environment of the production phase contains information of an object in the original image.

27. The color reproducing apparatus according to claim 26, wherein the information of the object contains information representing a statistical characteristic of a spectrum of the object.

28. The color reproducing apparatus according to claim 27, wherein the information of the object is provided on every region which is a segment of the original image that is segmented into a plurality of regions.

29. The color reproducing apparatus according to claim 1, wherein the information relating to the color reproduction environment of the production phase contains information relating to illumination of the production phase.

30. The color reproducing apparatus according to claim 29, wherein the information relating to the illumination of the production phase contains spectrum information of the illumination acquired through measurement, or spectrum information estimated and selected from a plurality of pieces of spectrum information prepared beforehand.

31. The color reproducing apparatus according to claim 30, wherein the information relating to the color reproduction environment of the production phase contains information relating to a vision characteristic of a creator.

32. The color reproducing apparatus according to claim 31, wherein the information relating to the vision characteristic of the creator contains one of a standardized color matching function such as an XYZ color matching function standardized by the International Commission on Illumination (CIE), a color matching function acquired by measuring the creator, and a color matching function estimated and selected from a plurality of color matching functions prepared beforehand.

33. The color reproducing apparatus according to claim 32, wherein the image output device is a multi-primary-color display device that performs a color display in multi primary colors of at least four primary colors.

34. The color reproducing apparatus according to claim 1, wherein the information relating to the color reproduction environment of the view phase contains information relating to illumination of the view phase.

35. The color reproducing apparatus according to claim 34, wherein the information relating to the illumination of the view phase contains spectrum information of the illumination acquired through measurement, or spectrum information estimated and selected from a plurality of pieces of spectrum information prepared beforehand.

36. The color reproducing apparatus according to claim 35, wherein the information relating to the color reproduction environment of the view phase contains information relating to a vision characteristic of a viewer.

37. The color reproducing apparatus according to claim 36, wherein the information relating to the vision characteristic of the viewer contains one of a standardized color matching function such as an XYZ color matching function standardized by the International Commission on Illumination (CIE), a color matching function acquired by measuring the viewer, and a color matching function estimated and selected from a plurality of color matching functions prepared beforehand.

38. The color reproducing apparatus according to claim 37, wherein the image output device is a multi-primary-color display device that performs a color display in multi primary colors of at least four primary colors.

39. The color reproducing apparatus according to claim 1, wherein the information relating to the color reproduction environment of the production phase contains information relating to a vision characteristic of a creator.

40. The color reproducing apparatus according to claim 39, wherein the information relating to the vision characteristic of the creator contains one of a standardized color matching function such as an XYZ color matching function standardized by the International Commission on Illumination (CIE), a color matching function acquired by measuring the creator, and a color matching function estimated and selected from a plurality of color matching functions prepared beforehand.

41. The color reproducing apparatus according to claim 1, wherein the information relating to the color reproduction environment of the view phase contains information relating to a vision characteristic of a viewer.

42. The color reproducing apparatus according to claim 41, wherein the information relating to the vision characteristic of the viewer contains one of a standardized color matching function such as an XYZ color matching function standardized by the International Commission on Illumination (CIE), a color matching function acquired by measuring the viewer, and a color matching function estimated and selected from a plurality of color matching functions prepared beforehand.

43. The color reproducing apparatus according to claim 1, wherein the information relating to the color reproduction environment of the production phase contains information relating to illumination of the production phase, and wherein the information relating to the color reproduction environment of the view phase contains information relating to illumination of the view phase.

44. The color reproducing apparatus according to claim 43, wherein the information relating to the color reproduction environment of the production phase contains information of an object in the original image.

45. The color reproducing apparatus according to claim 44, wherein the information of the object is provided on every region which is a segment of the original image that is segmented into a plurality of regions.

46. The color reproducing apparatus according to claim 1, wherein the information relating to the color reproduction environment of the production phase contains information of an object in the original image.

47. The color reproducing apparatus according to claim 46, wherein the information of the object is provided on every region which is a segment of the original image that is segmented into a plurality of regions.

48. The color reproducing apparatus according to claim 46, wherein the information of the object contains information representing a statistical characteristic of a spectrum of the object.

49. The color reproducing apparatus according to claim 1, wherein the information relating to the illumination of the production phase contains spectrum information of the illumination acquired through measurement, or spectrum information estimated and selected from a plurality of pieces of spectrum information prepared beforehand, and

wherein the information relating to the illumination of the view phase contains spectrum information of the illumination acquired through measurement, or spectrum information estimated and selected from a plurality of pieces of spectrum information prepared beforehand.

50. The color reproducing apparatus according to claim 49, wherein the information relating to the color reproduction environment of the production phase contains information of an object in the original image.

51. The color reproducing apparatus according to claim 50, wherein the information of the object contains information representing a statistical characteristic of a spectrum of the object.

52. The color reproducing apparatus according to claim 51, wherein the information of the object is provided on every region which is a segment of the original image that is segmented into a plurality of regions.

53. A color reproducing apparatus for color converting an image, produced on an image output device under an environment, using color correction means, and for outputting an image to be viewed on the same image output device or on another image output device,

wherein the color correction means color converts the image of a production phase into an image of a view phase using information relating to a color reproduction environment of the production phase, information relating to a color reproduction environment of the view phase, information relating to the image output device of the production phase, and information relating to the image output device of the view phase.

54. The color reproducing apparatus according to claim 53, wherein the image output device is a multi-primary-color display device that performs a color display by additively color mixing at least four primary colors.

55. The color reproducing apparatus according to claim 53, wherein at least one of spectrum information of illumination of the production phase, information relating to a vision characteristic of a creator, and statistical information relating to a spectrum of an object in the produced image is used as the information relating to the color reproduction environment of the production phase.

56. The color reproducing apparatus according to claim 55, wherein the statistical information of the object is spectrum reflectivity data of the object itself.

57. The color reproducing apparatus according to claim 55, wherein the statistical information of the object is spectrum data of several color materials designated by a user.

58. The color reproducing apparatus according to claim 55, wherein the image output device is a multi-primary-color display device that performs a color display by additively color mixing at least four primary colors.

59. The color reproducing apparatus according to claim 55, wherein the spectrum information of the illumination of the production phase is estimated based on either of a signal that is output by an illumination detection sensor when the illumination detection sensor detects the illumination, or a sample of illumination spectrum data selected from samples of a plurality of pieces of illumination spectrum data stored beforehand in an illumination spectrum database.

60. The color reproducing apparatus according to claim 59, wherein the image output device is a multi-primary-color display device that performs a color display by additively color mixing at least four primary colors.

61. The color reproducing apparatus according to claim 55, further comprising:

a color reproducing pre-processor which format converts image data produced using the image output device into image data having an illumination convertible data structure, using at least one of information relating to the image output device of the production phase, spectrum data of the illumination of the production phase, vision characteristic data of the creator, and spectrum statistical data of an object in the produced image; and

a color reproducing processor which processes the illumination convertible image data output from the color reproducing pre-processor, thereby correcting the illumination convertible image data into data having a color under desired viewing illumination, and outputting the corrected data.

62. The color reproducing apparatus according to claim 61, comprising a plurality of reproducing processors which respectively color correct a plurality of pieces of image data having an illumination convertible data structure,

wherein the color reproducing apparatus synthesizes the plurality of pieces of color corrected image data and outputs the synthesized data.

63. The color reproducing apparatus according to claim 53, wherein at least one of spectrum information of the illumination of the view phase and vision characteristic information of a viewer is used as the information relating to the color reproduction environment of the view phase.

64. The color reproducing apparatus according to claim 63, wherein the image output device is a multi-primary-color display device that displays a color display by additively color mixing at least four primary colors.

65. The color reproducing apparatus according to claim 63, wherein the spectrum information of the illumination of the view phase is estimated based on either of a signal that is output by an illumination detection sensor when the illumination detection sensor detects the illumination, or a sample of illumination spectrum data selected from samples of a plurality of pieces of illumination spectrum data stored beforehand in an illumination spectrum database.

66. The color reproducing apparatus according to claim 65, wherein the image output device is a multi-primary-color display device that performs a color display by additively color mixing at least four primary colors.

67. The color reproducing apparatus according to claim 63, further comprising:

a color reproducing pre-processor which format converts image data produced using the image output device into image data having an illumination convertible data structure, using at least one of information relating to the image output device of the production phase, spectrum data of the illumination of the production phase, vision characteristic data of a creator, and spectrum statistical data of an object in the produced image; and

a color reproducing processor which processes the illumination convertible image data output from the color reproducing pre-processor, thereby correcting the illumination convertible image data into data having a color under desired viewing illumination, and outputting the corrected data.

68. The color reproducing apparatus according to claim 67, comprising a plurality of reproducing processors which respectively color correct a plurality of pieces of image data having an illumination convertible data structure,

wherein the color reproducing apparatus synthesizes the plurality of pieces of color corrected image data and outputs the synthesized data.

69. A color reproducing method of color converting an original image into a view image, to be viewed on the same image output device which has produced the original image or on another image output device, under a color reproduction environment of a view phase, the color reproducing method comprising:

a step of producing the original image while monitoring the image output device under a color reproduction environment of a production phase;

a step of storing the original image and information relating to the color reproduction environment of the production phase;

a step of storing information relating to the color reproducing environment of the view phase and information relating to the image output device of the view phase; and

a step of color converting the original image into the view image using the information relating to the stored original image and the color reproduction environment of the production phase, the stored information relating to the color reproduction environment of the view phase, and the stored information relating to the image output device of the view phase.

70. A color reproducing method of color converting an image produced using an image output device under an environment, and of outputting a color converted image to be viewed on the same image output device or on another image output device, the color reproducing method comprising a step of converting the image of a production phase into an image of a view phase, using information relating to a color reproduction environment of the production phase, information relating to a color reproduction environment of the view phase, information relating to the image output device of the production phase, and information relating to the image output device of the view phase.