Systems and methods for automatic white balance of images

摘要

System and methods are provided for performing white balancing of an image. An image including one or more pixels is received, wherein a pixel corresponds to an input color value. A light source of the image is determined based at least in part on the input color values of the pixels, wherein the light source is used for illumination when the image is captured. New color values of the pixels are generated to reduce color distortion caused by the light source of the image.

主权项

1. A method for performing white balancing of an image, the method comprising:
receiving the image including one or more pixels, wherein a pixel corresponds to an input color value; calculating a color-temperature indicator of the image using the respective input color values of the one or more pixels and a set of adjustable parameters, a variation of the color-temperature indicator with color temperatures depending on the set of adjustable parameters; determining a color temperature of the image based at least in part on the calculated color-temperature indicator; determining a light source of the image based at least in part on the color temperature of the image, wherein the light source is used for illumination when the image is captured; and generating respective new color values of the one or more pixels to reduce color distortion caused by the light source of the image.