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Automatic correction method of image color and digital camera system

A technology of color correction and automatic correction, which is applied in the field of image processing, can solve problems such as labor-intensive, unfavorable, and inexperienced ordinary users, and achieve the effect of intuitive method, easy implementation, and simple steps

Inactive Publication Date: 2008-08-13
VIMICRO CORP
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  • Application Information

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Problems solved by technology

Its disadvantages are: the parameter configuration process is completely realized manually, which requires experienced image engineers to do a lot of work, and it is not conducive to the use of relatively inexperienced ordinary users; Redo the configuration of the correction matrix, resulting in a cumbersome color correction process that requires a lot of labor

Method used

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  • Automatic correction method of image color and digital camera system
  • Automatic correction method of image color and digital camera system
  • Automatic correction method of image color and digital camera system

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Embodiment Construction

[0028] In practical applications, people tend to be more concerned about the color of a specific area in an image. The specific area is called the target area and usually has a distinct tone. For example, for images captured by a video camera device (such as a PC camera), users usually care more about the imaging effect of a human face, and hope that the human face in the image is full of tones, rather than the background imaging effect. At this time, the human face is the target area, and its hue is typically skin color. In other applications, other areas can also be determined as target areas, such as grass and leaf areas in the image. The present invention takes advantage of the characteristic of the target area with distinctive hue, sets a desired hue for it in advance, and then automatically calculates the color correction matrix and performs color correction according to the difference between the actual hue of the target area in the image and the expected hue.

[0029] In t...

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Abstract

The present invention provides a method of image color autocorrection and system of digital videography. The method includes following steps: determining at least one object area from the image, the object area containing character pixel having special hue; calculating the color average value of all character pixel in the object area; setting desired hue of the character pixel; calculating color correction matrix utilizing the color average value of the desired hue and the character pixel; and correcting color of the whole image utilizing the color correction matrix. The method and system of the invention can automatically correct the object area according to the user desired hue.

Description

Technical field [0001] The present invention relates to image processing technology, in particular to an image color automatic correction method and a digital camera system capable of realizing the method. Background technique [0002] As shown in FIG. 1, a digital camera system 10 such as a digital camera, a digital video camera, and a digital camera generally includes an optical lens 11, an image sensor 12, an image processing chip 13, an image transmission module 14 and an image display module 15. The shooting target is imaged on the image sensor 12 through the optical lens 11, and the image is converted by the sensor 12 into original image data. The original image data is processed by the image processing chip 13, and then transmitted to the image display module 15 by the image transmission module 14 display. [0003] The image processing chip 13 can perform various processing on the original image data, including automatic white balance, automatic exposure control combined w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/62H04N9/64G06K9/00
Inventor 黄英王浩邱嵩
Owner VIMICRO CORP
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