White balance adjusting method and camera

Abstract

The invention provides a white balance adjusting method, which is applicable to adjusting white balance of a photo. The white balance adjusting method comprises the following steps: acquiring a white photo as a calibrating photo; graying the white photo to obtain a standard calibrating photo; for a calibrating pixel in the standard calibrating photo, acquiring an RGB value and a gray value of the calibrating pixel; performing processing to obtain a corresponding RGB calibrating value according to the RGB value of the calibrating pixel; acquiring a photo with chromatic aberration to serve as a to-be-calibrated photo; S6, for a to-be-calibrated pixel in the to-be-calibrated photo, acquiring a to-be-calibrated RGB value of the to-be-calibrated pixel; performing processing to obtain an RGB standard value in which the chromatic aberration is removed according to the RGB to-be-calibrated value of the to-be-calibrated pixel and the RGB calibrating value; judging whether pixels that have not been calibrated exist in the to-be-calibrated photo or not; if pixels that have not been calibrated exist, returning to the steps above; and if pixels that have not been calibrated do not exist, the adjustment being finished. By means of the white balance adjusting method, the universality is higher, the visual effect of the photo is obviously improved, and the vigorousness and robustness are higher.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a white balance adjustment method and a camera. Background technique [0002] White balance is one of the factors used to improve picture quality. The currently popular methods of adjusting the white balance parameters in the camera specifically include: firstly, it is necessary to convert the red, green and blue three-color channels into the color space, and then locate the white reference point. By calculating the image color temperature, the red component value, green component value and The blue component value is adjusted in three channels. This method increases the difficulty of design and hardware cost, and is not suitable for low-cost cameras. Contents of the invention [0003] Aiming at the problems existing in the prior art, a white balance adjustment method is now provided. [0004] The specific technical scheme is as follows: [0005] A method for adjust...

AI Technical Summary

Problems solved by technology

The currently popular methods of adjusting the white balance parameters in the camera specifically include: firstly, it is necessary to convert the red, green and blue three-color channels into the color space, and then locate the white reference point. By calculating the image color temperature, the red component value, green component value and The blue component value is adjusted by three channels. This method increases the difficulty of design and hardware cost, and is not suitable for low-cost cameras.

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