The Microsoft XMP schemas for people tagging define a set of properties to tag individuals in digital photos.

• Exiv2 keys are nested Xmp.MP.RegionInfo/MPRI:Regions/MPReg:<Property>

• The MP schema namespace URI is http://ns.microsoft.com/photo/1.2/
• This schema namespace prefix is MP

• The MPRI schema namespace URI is http://ns.microsoft.com/photo/1.2/t/RegionInfo#
• This schema namespace prefix is MPRI

• The MPReg schema namespace URI is http://ns.microsoft.com/photo/1.2/t/Region#
• This schema namespace prefix is MPReg

Reference: People Tagging Overview

Property	Label	Value type	Exiv2 type	Category	Description
RegionInfo	RegionInfo	RegionInfo	XmpText	Internal	Microsoft Photo people-tagging metadata root

Property	Label	Value type	Exiv2 type	Category	Description
Regions	Regions	bag Region	XmpBag	External	Contains Regions/person tags
DateRegionsValid	Date Regions Valid	Date	XmpText	External	Date the last region was created

Property	Label	Value type	Exiv2 type	Category	Description
PersonDisplayName	Person Display Name	Text	XmpText	External	Name of the person (in the given rectangle)
Rectangle	Rectangle	Text	XmpText	External	Rectangle that identifies the person within the photo
PersonEmailDigest	Person Email Digest	Text	XmpText	External	SHA-1 encrypted message hash of the person's Windows Live e-mail address
PersonLiveIdCID	Person LiveId CID	Text	XmpText	External	Signed decimal representation of the person's Windows Live CID