Skin characteristics are analyzed. A device acquires a digital image of an area of skin of a user. A processor quantitatively analyzes the digital image to determine a characteristic of all or part of the area of skin which is indicative of a skin condition of interest. Depending on the results of the...http://www.google.com.hk/patents/US7894651?utm_source=gb-gplus-share專利 US7894651 - Quantitative analysis of skin characteristics
