Method for describing colour temperature in metadata conversion display device using content and system thereof

A technology of metadata and color temperature, which is applied in the field of color temperature conversion in a display device using content description metadata and its system, can solve the problems of image display performance deterioration and cost increase, etc.

Inactive Publication Date: 2003-11-05
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As a result, the image display performance deteriorates, or the cost of improving the image display performance increases

Method used

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  • Method for describing colour temperature in metadata conversion display device using content and system thereof
  • Method for describing colour temperature in metadata conversion display device using content and system thereof
  • Method for describing colour temperature in metadata conversion display device using content and system thereof

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Experimental program
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Embodiment Construction

[0017] Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings.

[0018] figure 1 is a block diagram of the structure of a color temperature conversion system according to a preferred embodiment of the present invention. see figure 1 , the color temperature conversion system includes: an image color temperature recording unit 10 for estimating the color temperature of the visual content and recording the color temperature as metadata; a preferred color temperature management unit 20 for determining the user's preferred color temperature; a color temperature adjustment unit 30 for Analyze metadata and convert the color temperature of visual content.

[0019] The image color temperature recording unit 10 includes a color temperature estimator 11 and a content description metadata generator 12 . The color temperature estimator 11 time-divides the visual content according to a preset or input color temperature description fo...

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Abstract

The present invention provides a system and a method for converting the color temperature of visual content to a user's preferred color temperature using metadata of the visual content. The system includes an image color temperature recording unit, a user preference color temperature management unit and a color temperature adjustment unit. The image color temperature recording unit divides the visual content in time according to a color temperature description format, estimates the color temperature of the time-divided part, and records the estimated color temperature as first metadata. The user's preferred color temperature management unit determines the user's preferred color temperature in the time division, records the user's preferred color temperature as second metadata, and outputs the user's preferred color temperature. The color temperature adjustment unit converts the estimated color temperature of the first metadata according to the user's preferred color temperature of the second metadata.

Description

technical field [0001] The present invention relates to a method and system for converting the color temperature of visual content according to a user's preferred color temperature. Background technique [0002] The color temperature of a light source is defined as the temperature of the Planck radiator whose chromaticity is closest to the light source on a suitable uniform color scale diagram such as the CIE1960UCS diagram. The color temperature of an image can be calculated by estimating the luminance component of the image. Color temperature can be used to quantify how warm or cold a human perceives an image. Generally, an image with a high color temperature is entirely blue, and an image with a low color temperature is entirely red. However, individual preferences vary in color temperature. [0003] As disclosed in U.S. Patent Nos. 4,562,460, 4,633,299, and 4,788,586, in the prior art, in order to convert the color temperature of an image to the user's preferred color...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/73
CPCH04N9/73
Inventor 许永植朴斗植俞基源金相均
Owner SAMSUNG ELECTRONICS CO LTD
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