17. Using Photoshop's Hue and Saturation controls to adjust skin tone.

One of the most complex tasks that faces a digital camera is to process an image to produce a skin tone which is both accurate and pleasing (not always the same thing!).

In some cases, perhaps due to local lighting conditions or the appearance of a particular subject, some adjustment after the image has been taken is necessary to please the client.

Attempts to alter skin tone using the normal colour RGB colour balance tools are usually not successful as they tend to alter the entire image or simply cannot produce good results with the complex tonal characteristics of skin.

It has been found that the Hue and Saturation tool is an effective alternative and can produce pleasing results with relatively minor effort.

	The image on the left shows a slight tendency towards magenta in the nose, cheeks and ear.
	This is the corrected image,  processed in less than a minute as explained below:
	Using the Colour Range selector, place the dropper on the colour area to be adjusted.
	A Fuzziness of 40 is about right to cover enough tones. In this case the dropper was placed on the bridge of the nose.
	It doesn't take much to pull the image back in: just +5% hue and -5% saturation was used in this example.