Format-Specific Dictionaries

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

Overview

If any of these constants are returned by the functionsCGImageSourceCopyProperties(_:_:) or CGImageSourceCopyPropertiesAtIndex(_:_:_:) the associated value is a dictionary of key-value pairs that are specific to that file format or metadata format.

Symbols

Constants

let kCGImagePropertyTIFFDictionary: CFString

A dictionary of key-value pairs for an image that uses Tagged Image File Format (TIFF). See TIFF Dictionary Keys.

let kCGImagePropertyGIFDictionary: CFString

A dictionary of key-value pairs for an image that uses Graphics Interchange Format (GIF). See GIF Dictionary Keys.

let kCGImagePropertyJFIFDictionary: CFString

A dictionary of key-value pairs for an image that uses JPEG File Interchange Format (JFIF). See JFIF Dictionary Keys.

let kCGImagePropertyExifDictionary: CFString

A dictionary of key-value pairs for an image that uses Exchangeable Image File Format (EXIF). See EXIF Dictionary Keys.

let kCGImagePropertyPNGDictionary: CFString

A dictionary of key-value pairs for an image that uses Portable Network Graphics (PNG) format. See PNG Dictionary Keys.

let kCGImagePropertyIPTCDictionary: CFString

A dictionary of key-value pairs for an image that uses International Press Telecommunications Council (IPTC) metadata. See IPTC Dictionary Keys.

let kCGImagePropertyGPSDictionary: CFString

A dictionary of key-value pairs for an image that has Global Positioning System (GPS) information. See GPS Dictionary Keys.

let kCGImagePropertyRawDictionary: CFString

A dictionary of key-value pairs for an image that contains minimally processed, or raw, data.

let kCGImagePropertyCIFFDictionary: CFString

A dictionary of key-value pairs for an image that uses Camera Image File Format (CIFF). See CIFF Dictionary Keys.

let kCGImageProperty8BIMDictionary: CFString

A dictionary of key-value pairs for an Adobe Photoshop image. See 8BIM Dictionary Keys.

let kCGImagePropertyDNGDictionary: CFString

A dictionary of key-value pairs for an image that uses the Digital Negative (DNG) archival format. See DNG Dictionary Keys.

let kCGImagePropertyExifAuxDictionary: CFString

An auxiliary dictionary of key-value pairs for an image that uses Exchangeable Image File Format (EXIF).