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White balance method for shadow compensation and device applied to the method

A technology for shading compensation and white balance, applied in color TV parts, TV system parts, signal generators with a single pickup device, etc., can solve problems such as increased processing time

Active Publication Date: 2017-01-04
HANWHA TECHWIN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the prior art shading compensation method includes a separate control execution process for avoiding the shading phenomenon
Due to this separate control execution processing, processing time increases, and it is necessary to additionally include a processing module for performing separate control execution processing for avoiding the shading phenomenon in a chip form

Method used

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  • White balance method for shadow compensation and device applied to the method
  • White balance method for shadow compensation and device applied to the method
  • White balance method for shadow compensation and device applied to the method

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Embodiment Construction

[0021] The advantages and features of the present disclosure and a method of achieving the advantages and features of the present disclosure will be more easily understood with reference to the following detailed description of exemplary embodiments and the accompanying drawings. However, this disclosure may be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of the disclosure to those skilled in the art, and this disclosure will be limited only by the appended claims. Throughout the specification, the same reference numerals refer to the same elements.

[0022] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. When used herein, the singular is intended to include the plura...

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Abstract

Provided are a white balance method for shading compensation and a device applied to the method. The present disclosure relates to a white balance method for performing shading compensation, and more specifically, in the white balance method for performing shading compensation, white balance control is started for an input image captured while driving a camera, and then white balance control is started when the starting white Shading compensation is performed simultaneously during the processing of the balance control. The white balance method for performing shadow compensation includes: performing white balance for adjusting the color temperature of the input image; extracting a shadow gain table corresponding to the color temperature from pre-stored shadow gain tables for each color temperature during the white balance execution; Shading compensation is performed on the image for each block of the input image by using the extracted shadow gain table; white balancing is terminated.

Description

[0001] This application claims priority from Korean Patent Application No. 10-2013-0079831 filed with the Korean Intellectual Property Office on Jul. 8, 2013, the disclosure of which is incorporated herein by reference in its entirety. technical field [0002] The present disclosure relates to a white balance method for performing shading compensation, and more particularly, in a white balance method for performing shading compensation, for driving The camera captures the input image when the white balance control is enabled, and then concurrently performs shading compensation during the process of performing the enabled white balance control. Background technique [0003] As the number of pixels of the image sensor increases and the angle of view of the installed and downsized lens expands, the diameter of the lens decreases, which causes the incident angle of main incident light to become larger. Therefore, the brightness of the center area of ​​the image captured through ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N9/73H04N5/217
CPCH04N1/401H04N1/6027H04N23/88H04N9/73H04N23/12
Inventor 郑荣济金恩贞
Owner HANWHA TECHWIN CO LTD
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