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White balancing method and image adjusting device

A white balance and image technology, applied to color signal processing circuits, etc., can solve the problems of huge amount of calculation, complicated calculation process, increased circuit design cost and calculation time, etc.

Inactive Publication Date: 2008-07-02
MAGIC PIXEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Not only requires a huge amount of calculation, but also the calculation process is very complicated
Therefore, the cost of circuit design and the time of operation are greatly increased

Method used

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  • White balancing method and image adjusting device
  • White balancing method and image adjusting device

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Embodiment Construction

[0071] Please also refer to FIG. 2 , which shows a flowchart of a white balance method according to a preferred embodiment of the present invention. In this embodiment, the white balance method at least includes the following steps: in step (a), extract a first image E1 (the first image E1 is marked in FIG. 3 ), the first image E1 has a plurality of first pixels, Each first pixel has a red color value R q , a green color value G q and a blue color value B q . Then, in step (b), according to the red color value R of each first pixel q , green color value G q and blue color value B q , to determine whether the first pixel meets a Hue standard of a standard white point. Next, in step (c), according to the red color value R of each first pixel q , green color value G q and blue color value B q , to determine whether the first pixel complies with the saturation (Saturation) standard of the standard white point. Next, in step (d), according to the red color value R of each...

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Abstract

The invention relates to a method of white balance and an image adjusting device. The method of white balance at least includes the following steps: (a) extracting a first image which has a plurality of first pixels. (b) judging if various first pixels comply with color tone standard of a standard white spot. (c) judging if various first pixels are in accordance with saturation standard of a standard white spot. (4) judging if various first pixels are in accordance with brightness standard of a standard white spot. (e) the various first pixels which are in accordance with the color tone standard, saturation standard and brightness standard of the standard white spot are defined as a white spot pixel. (f) A plurality of second pixels of a second image is regulated according to a plurality of white spot pixels.

Description

technical field [0001] The present invention relates to a white balance method and an image processing device, and in particular to a white balance method and an image processing device using HSI color space for calculation. Background technique [0002] With the continuous advancement of digital image technology, various digital image processing devices (such as digital cameras or digital video recorders) are widely used in daily life. Among them, in the digital image processing device, the phenomenon of color shift is a major difficulty encountered in the digital image processing. According to the principle of black body radiation, the same pixel will show different colors under different ambient color temperatures. For example, a piece of white paper will appear reddish-yellow at low ambient color temperature (approximately 1000-2800K), and will appear bluish-green at high ambient color temperature (approximately 8000-12000K). Therefore, in the digital image processing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/73
Inventor 许永昌陈如薇
Owner MAGIC PIXEL
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