CGImageProperties

Overview

CGImageProperties Reference defines constants that represent characteristics of images used by the Image I/O framework.

Symbols

Constants

Format-Specific Dictionaries

Properties that have an associated dictionary of file-format or metadata-format specific key-value pairs.

Camera-Maker Dictionaries

Properties that have an associated dictionary of key-value pairs for a specific camera manufacturer.

Image Source Container Properties

Properties that apply to the container in general but not necessarily to any individual image in the container.

Individual Image Properties

Properties that apply to an individual image in an image source.

Color Model Values

Values for the color model property.

EXIF Dictionary Keys

Keys for an image that uses Exchangeable Image File Format (EXIF).

EXIF Auxiliary Dictionary Keys

Auxiliary keys for an image that uses Exchangeable Image File Format (EXIF).

GIF Dictionary Keys

Keys for an image that uses Graphics Interchange Format (GIF).

GPS Dictionary Keys

Keys for an image that has Global Positioning System (GPS) information.

IPTC Dictionary Keys

Keys for an image that uses International Press Telecommunications Council (IPTC) metadata.

IPTC Creator Contact Info Dictionary Keys

Keys for an image that uses International Press Telecommunications Council (IPTC) metadata. These keys are used to reference data stored in the dictionary attached to the kCGImagePropertyIPTCCreatorContactInfo key.

JFIF Dictionary Keys

Keys for an image that uses JPEG File Interchange Format (JFIF).

PNG Dictionary Keys

Keys for an image that uses Portable Network Graphics (PNG) format.

TIFF Dictionary Keys

Keys for an image that uses Tagged Image File Format (TIFF).

DNG Dictionary Keys

Keys for an image that uses the Digital Negative (DNG) archival format.

8BIM Dictionary Keys

A key for an Adobe Photoshop image.

CIFF Dictionary Keys

Keys for an image that uses Camera Image File Format (CIFF).

Nikon Camera Dictionary Keys

Keys for an image from a Nikon camera.

Canon Camera Dictionary Keys

Keys for an image from a Canon camera.