Module orientation 

Where an image’s orientation comes from, and how competing records are resolved.

A RAW file can state its orientation in more than one place: the standard TIFF/EXIF Orientation tag and a vendor record (a MakerNote field such as Canon’s CameraOrientation, the rotation saved by a vendor’s own editing software, or the EXIF block of the camera’s own embedded JPEG). The records do not always agree, and which one describes the image depends on how the camera (or software) wrote them, so the choice is made per camera with an OrientationPolicy.

OrientationMetadata keeps both records, the chosen value and why it was chosen. RawMetadata::orientation stays the resolved value.

Structs

OrientationMetadata

Orientation records of a file and the value resolved from them.

Enums

OrientationPolicy

How the standard and vendor orientation records of a camera are combined.

OrientationSource

Which record the resolved orientation was taken from.