nfo:RegionOfInterest: Tracker Ontology Reference Manual

## nfo:RegionOfInterest nfo:RegionOfInterest |

## Description

Area on an image with relevant content. Following the spec in http://www.metadataworkinggroup.org

## Class hierarchy

        http://www.w3.org/2000/01/rdf-schema#Resource
            nie:InformationElement
            ╰── nfo:RegionOfInterest

## Properties

### The `“nfo:roiRefersTo”` property

    “nfo:roiRefersTo”          nie:InformationElement

Link to an item that is represented in the region. The 'type' of the region can give a clue of what exact content is linked in this property

Number of possible elements per resource (Cardinality): 1

### The `“nfo:regionOfInterestType”` property

    “nfo:regionOfInterestType”          nfo:RegionOfInterestContent

The content of a region can be one of the predefined types in the spec

Number of possible elements per resource (Cardinality): 1

### The `“nfo:regionOfInterestHeight”` property

    “nfo:regionOfInterestHeight”          http://www.w3.org/2001/XMLSchema#double

Height of the region. It is normalized (values between 0 and 1) to the total height of the picture.

Number of possible elements per resource (Cardinality): 1

### The `“nfo:regionOfInterestWidth”` property

    “nfo:regionOfInterestWidth”          http://www.w3.org/2001/XMLSchema#double

Width of the region. It is normalized (values between 0 and 1) to the total width of the picture.

Number of possible elements per resource (Cardinality): 1

### The `“nfo:regionOfInterestY”` property

    “nfo:regionOfInterestY”          http://www.w3.org/2001/XMLSchema#double

Coordinate y where the region starts. It is normalized (values between 0 and 1) to the height of the picture. Starting in the upper left corner.

Number of possible elements per resource (Cardinality): 1

### The `“nfo:regionOfInterestX”` property

    “nfo:regionOfInterestX”          http://www.w3.org/2001/XMLSchema#double

Coordinate X where the region starts. It is normalized (values between 0 and 1) to the width of the picture. Starting in the upper left corner.

Number of possible elements per resource (Cardinality): 1