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Color temperature compensating imaging apparatus and method

An imaging device and color temperature technology, which is applied in the field of measuring and compensating color temperature, can solve problems such as high gain, image quality degradation, and long open shutter

Inactive Publication Date: 2010-06-23
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if shooting is performed without lighting, the shutter needs to be open for a long period of time, or high gain
As a result, image quality degrades

Method used

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  • Color temperature compensating imaging apparatus and method
  • Color temperature compensating imaging apparatus and method
  • Color temperature compensating imaging apparatus and method

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Embodiment Construction

[0029] The present invention will now be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. In the specification and drawings, the same reference numerals denote the same components, and thus, their descriptions will be omitted.

[0030] device structure

[0031] First, the device 100 according to the embodiment of the present invention will be described in detail. figure 1 is a block diagram showing the imaging device 100 .

[0032] refer to figure 1 , the imaging device 100 according to the embodiment includes a charge-coupled device (CCD) 102, a correlated double sampling / amplifier (CDS / AMP) unit 104, an A / D converter 106, an image input controller 108, a timing generator 110, a central processing Unit (CPU) 120, lighting controller 122, lighting devices 124 and 126, shutter switch or button 130, white balance detector 132, white balance controller 134, image signal processor 136, compression proce...

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PUM

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Abstract

Provided are a color temperature compensating imaging apparatus and an method, which are used to acquire good image quality under mixed light (MIX light) conditions. The apparatus includes a gain acquisition unit for acquiring gains of color signals to control a white balance of an image of a subject; an illumination unit including a light source of which illumination color temperature is controlled when the subject is illuminated; and an illumination control unit that calculates the illumination color temperature based on the acquired gains, and adjusts the illumination device color temperature.

Description

[0001] This application claims the benefit of Korean Patent Application No. 10-2008-00125344 filed with the Korean Intellectual Property Office on December 10, 2008, which is hereby incorporated by reference in its entirety. technical field [0002] The present invention relates to an imaging device and an imaging method. More specifically, the present invention relates to a method and system for measuring and compensating for color temperature. Background technique [0003] Along with imaging devices (eg, digital cameras), photographers typically use lighting devices (eg, flashlights). While the photo is being taken, the white balance setting of the lighting device can be manually adjusted so that the white of the image captured by the imaging device is the same as the white of the subject. By conversion, the color spectrum produced by a lighting device is measured in units of temperature because the color spectrum produced by thermal radiation from a blackbody (eg, a fila...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/238H04N9/07H04N9/73H04N23/75H04N23/12
CPCH04N9/735H04N1/6086H04N23/88H04N9/73H04N23/10
Inventor 五反田芳治
Owner SAMSUNG ELECTRONICS CO LTD