An Apple patent (number 8311355) for skin tone aware color boost for cameras has appeared at the U.S. Patent & Trademark Office. The company obviously wants to continually improve the cameras in its portable devices.
As the patent notes, increasing color saturation and contrast in images generally leads to more pleasing images; however, doing so uniformly to all colors in the image can make skin tones appear with an overly red tint. One embodiment of an improved method of skin tone aware color boosting identifies areas of the image which look like skin tones and areas that do not look like skin tones. A blurred "skin tone mask" can then be created over the image.
One large boost operation and one small boost operation can be applied to the image. A final version of the image may then be created, applying the pixel values resulting from the small boosting operation to the skin tone regions and applying the pixel values resulting from the large boosting operation...| Read more »