Display control apparatus and method under plural different color spaces

• US 20050200922A1
• Filed: 03/04/2005
• Published: 09/15/2005
• Est. Priority Date: 03/09/2004
• Status: Active Grant

• Current Assignee: Olympus Corporation
• Original Assignee: Olympus Corporation
• Inventors: Toyoda, Tetsuya, Tanaka, Yoshinobu, Ueno, Akira
• Granted Patent: US 7,948,501 B2
• Time in Patent Office: Days
• US Class Current: 358/530
• CPC Class Codes: G09G 2340/06 Colour space transformation
• 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 1/46 Colour picture communication systems
• 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 23/85 for matrixing
• CPC Class Codes: H04N 5/44504 Circuit details of the additional information generator, e.g. details of the character or graphics signal generator, overlay mixing circuits
• CPC Class Codes: H04N 9/67 for matrixing camera processing pipelines for matrixing of colour signals H04N23/85

Abstract

A display control apparatus displays image data expressed under a plurality of different color spaces. A discriminating section discriminates color space information on image data to be displayed. A gain switching section switches between gains in accordance with a result of the discrimination and sets a gain adapted for the image data to be displayed. An amplifying section amplifies an image signal, generated based on the image data and relating to at least a color difference, in accordance with the gain set by the gain switching section.

Claims

1. A display control apparatus to display image data expressed under a plurality of different color spaces, the apparatus comprising:

a discriminating section which discriminates color space information on image data to be displayed;

a gain switching section which switches between gains in accordance with a result of the discrimination and sets a gain adapted for the image data to be displayed; and

an amplifying section which amplifies an image signal, generated based on the image data and relating to at least a color difference, in accordance with the gain set by the gain switching section.

3. The display control apparatus according to claim 1, wherein the discrimination section discriminates a kind of the color space information based on information recorded in a header of an image file.

4. The display control apparatus according to claim 1, wherein the discriminating section discriminates a kind of the color space information based on a name of an image file to be displayed.

5. The display control apparatus according to claim 1, wherein the discriminating section discriminates a kind of the color space information based on file management information including associating information of an image file to be displayed.

6. The display control apparatus according to claim 1, further comprising an operation unit which sets a color space, wherein the discriminating section discriminates the color space information based on information on the color space set by the operation unit.

7. The display control apparatus according to claim 1, further comprising a display unit which allows information on the plurality of different color spaces to be displayed therein.

8. The display control apparatus according to claim 1, wherein the gains in the gain switching section are preset as fixed value.

2. A display control apparatus to display image data expressed under a plurality of different color spaces, the apparatus comprising:

a discriminating section which discriminates color space information on image data to be displayed;

a palette selection section which selects a desired color palette from a plurality of color palettes relating to a display pattern in accordance with a result of the discrimination;

a mixing section which mixes the image data with the color palette relating to the display pattern selected by the palette selecting section, thereby generating display image data;

a gain switching section which switches between gains in accordance with the result of the discrimination and sets a gain adapted for the display image data; and

an amplifying section which amplifies an image signal, generated based on the display image data and relating to at least a color difference, in accordance with the gain set by the gain switching section.

9. The display control apparatus according to claim 2, wherein the plurality of color palettes are set to display the display pattern in a suitable color saturation when the image signal is amplified by the amplifying section, after the color palette is mixed with the display image data.

10. The display control apparatus according to claim 2, wherein the gains which are switched between the gain switching section include a gain adapted for sRGB and a gain adapted for Adobe RGB that is greater than the gain adapted for sRGB.

16. The display control apparatus according to claim 2, wherein the discrimination section discriminates a kind of the color space information based on information recorded in a header of an image file.

17. The display control apparatus according to claim 2, wherein the discriminating section discriminates a kind of the color space information based on a name of an image file to be displayed.

18. The display control apparatus according to claim 2, wherein the discriminating section discriminates a kind of the color space information based on file management information including associating information of an image file to be displayed.

19. The display control apparatus according to claim 2, further comprising an operation unit which sets a color space, wherein the discriminating section discriminates the color space information based on information on the color space set by the operation unit.

20. The display control apparatus according to claim 2, further comprising a display unit which allows information on the plurality of different color spaces to be displayed therein.

21. The display control apparatus according to claim 2, wherein the gains in the gain switching section are preset as fixed value.

11. A display control apparatus to display image data expressed under a plurality of different color spaces, the apparatus comprising:

discriminating means for discriminating color space information on image data to be displayed;

gain switching means for switching between gains in accordance with a result of the discrimination and sets a gain adapted for the image data to be displayed; and

amplifying means for amplifying an image signal, generated based on the image data and relating to at least a color difference, in accordance with the gain set by the gain switching means.

12. A display control apparatus to display image data expressed under a plurality of different color spaces, the apparatus comprising:

discriminating means for discriminating color space information on image data to be displayed;

palette selecting means for selecting a desired color palette from a plurality of color palettes relating to a display pattern in accordance with a result of the discrimination;

mixing means for mixing the image data with the color palette relating to the display pattern selected by the palette selecting means, thereby generating display image data;

gain switching means for switching between gains in accordance with the result of the discrimination and sets a gain adapted for the display image data; and

amplifying means for amplifying an image signal, generated based on the display image data and relating to at least a color difference, in accordance with the gain set by the gain switching means.

13. A display control method for displaying image data expressed under a plurality of different color spaces, the method comprising:

discriminating under what color space image data is expressed;

switching between gains in accordance with a result of the discrimination and setting a gain for use in displaying the image data; and

amplifying the image data using the gain set in accordance with the result of the discrimination of the image data.

14. A display control method for displaying image data expressed under a plurality of different color spaces, the method comprising:

discriminating under what color space image data is expressed;

selecting a color palette relating to a display pattern from a plurality of color palettes in accordance with a result of the discrimination;

mixing the image data with the selected color palette relating to the display pattern;

switching between gains in accordance with the result of the discrimination and setting a gain for use in displaying the image data; and

amplifying the image data using the gain set in accordance with the result of the discrimination of the image data.

15. A display control method for displaying image data expressed under a plurality of different color spaces, the method comprising:

discriminating under what color space image data is expressed;

selecting an image processing parameter relating to color space processing when processing the image data based on a result of discrimination of the image data;

processing the image data based on the selected image processing parameter;

selecting a color palette relating to a display pattern from a plurality of color palettes in accordance with the result of the discrimination;

switching between gains in accordance with the result of the discrimination of the image data and setting a gain for use in displaying the image data;

amplifying the image data using the gain set in accordance with the result of the discrimination of the image data; and

displaying the amplified image data using the set gain.