1. A method of reducing false color artifacts in an image, the method comprising: determining an aperture value based at least in part on brightness values of pixels in a window surrounding a subject pixel; determining a color saturation value based at least in part on color values of pixels in the window; determining an attenuation value based at least in part on the aperture value and the color saturation value; and adjusting a color value of the subject pixel based at least in part on the attenuation value.