photo retouching def:

to improve with new touches, highlights, or the like; touch up or rework, as a painting or makeup.

got it fromhttp://www.dictionary.com/browse/retouch

http://nerdprint.com/wp-content/uploads/2012/04/Male-Portrait-Photo-Retouching.jpg

http://www.studiocisco.com/images/retouching1.jpg

 

http://webneel.com/sites/default/files/images/project/photoshop%20editing.forblog.jpg

http://www.letsgodigital.org/images/artikelen/203/photo-retouching.jpg

http://webneel.com/daily/sites/default/files/images/daily/04-2013/26-skin-photo-retouching-after-before.jpg