JP2008271411A5

JP2008271411A5 -

Info

Publication number: JP2008271411A5
Application number: JP2007114500A
Authority: JP
Filing date: 2007-04-24
Publication date: 2010-06-17
Anticipated expiration: 2027-04-24

Claims

Color conversion method setting means for setting one color conversion method from a plurality of color conversion methods;
And color conversion processing means for processing the image data in the color conversion method set in the color conversion method setting unit,
Encoding mode setting means for setting one encoding mode from a plurality of encoding modes;
The image data processed by the color conversion processing unit, compression encoding means for encoding at sign-reduction mode set by the coding mode setting means,
In an image encoding device comprising:
Said color conversion method setting unit, acquires the information of the set coding mode by the encoding mode setting means, in accordance with the information, a color conversion method corresponding to the set coding mode in the encoding mode setting means setting the image coding apparatus characterized by.

Depending on which of the plurality of encoding modes are set, wherein the target value before Symbol average code amount per unit time of the image data generated by compression encoding means are different, it is characterized by Item 2. The image encoding device according to Item 1 .

The color gamut space for reproducing the color information of the image data processed by the color conversion processing unit differs depending on which of the plurality of color conversion methods is set. 2. The image encoding device according to 2.

The higher the plurality of things the color gamut space of the color conversion method broad, the image encoding apparatus according to claim 3, characterized in that corresponding to what the larger the target value of the plurality of encoding modes.

The plurality of color conversion methods are BT. 709 including a method, the xvYCC scheme, that the image encoding apparatus according to claim 3 or 4, characterized in.

  Color conversion method setting means for setting one color conversion method from a plurality of color conversion methods;
  Color conversion processing means for processing image data by the color conversion method set by the color conversion method setting means;
  Encoding mode setting means for setting one encoding mode from a plurality of encoding modes;
  Compression encoding means for encoding the image data processed by the color conversion processing means in the encoding mode set by the encoding mode setting means;
  In an image encoding device comprising:
  The encoding mode setting means acquires information on the color conversion method set by the color conversion method setting means, and in accordance with the information, the encoding mode corresponding to the color conversion method set by the color conversion method setting means An image encoding device characterized by comprising:

The target value of an average code amount per unit time of image data generated by the compression encoding unit is different depending on which of the plurality of encoding modes is set. 6. The image encoding device according to 6.

The color gamut space for reproducing color information of image data processed by the color conversion processing unit differs depending on which of the plurality of color conversion methods is set. 8. The image encoding device according to 7.

9. The image coding apparatus according to claim 8, wherein a larger target value among the plurality of coding modes corresponds to a wider color gamut space among the plurality of color conversion methods.

The plurality of color conversion methods are BT. The image encoding apparatus according to claim 8, wherein the image encoding apparatus includes a 709 system and an xvYCC system.

Wherein the plurality of color conversion method, the color information deviates from the color gamut space of the color conversion method that will be set by the setting means of the color information of the image data before being processed by the color conversion processing unit, Ru is the set the image coding apparatus according to any one of claims 1 to 10, characterized in that it comprises a color conversion method including a process of rearranging the color gamut space of the color conversion method.

Color conversion method setting means for setting one color conversion method from a plurality of color conversion methods;
And color conversion processing means for processing the image data in the color conversion method set in the color conversion method setting unit,
Encoding mode setting means for setting one encoding mode from a plurality of encoding modes;
The image data processed by the color conversion processing unit, compression encoding means for encoding at sign-reduction mode set by the coding mode setting means,
In a control method of an image encoding device comprising:
The color conversion method setting means acquiring information of the encoding mode set by the encoding mode setting means ;
Said color conversion method setting unit, and setting a color conversion method in accordance with the information, corresponding to the set coding mode in the encoding mode setting means,
A method for controlling an image encoding device comprising:

  Color conversion method setting means for setting one color conversion method from a plurality of color conversion methods;
  Color conversion processing means for processing image data by the color conversion method set by the color conversion method setting means;
  Encoding mode setting means for setting one encoding mode from a plurality of encoding modes;
  Compression encoding means for encoding the image data processed by the color conversion processing means in the encoding mode set by the encoding mode setting means;
  In a control method of an image encoding device comprising:
  The encoding mode setting means obtaining information of the color conversion method set by the color conversion method setting means;
  The encoding mode setting means setting an encoding mode corresponding to the color conversion method set by the color conversion method setting means according to the information;
  A method for controlling an image encoding device comprising:

A program for causing a computer to execute each step of the control method of the image encoding device according to claim 12 or 13 .

A computer-readable recording medium storing a program for causing a computer to execute each step of the control method of the image encoding device according to claim 12 or 13 .