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Contents
1.
Scope ...............................................................................................................................................................1
2.
Definition of Terms............................................................................................................................................1
3.
General.............................................................................................................................................................1
3.1.
Format Structure .......................................................................................................................................1
3.2.
Exif Image File Specification.....................................................................................................................2
3.3.
Exif Audio File Specification......................................................................................................................2
3.4.
Relation between Image and Audio File Specification..............................................................................3
3.5.
Presupposed Systems and Compatibility .................................................................................................3
4.
Exif Image File Specification ............................................................................................................................4
4.1.
Outline of the Exif Image File Specification ..............................................................................................4
4.2.
Format Version..........................................................................................................................................4
4.3.
Definition of Glossary................................................................................................................................4
4.4.
Specifications Relating to Image Data......................................................................................................5
4.4.1.
Number of Pixels................................................................................................................................5
4.4.2.
Pixel Aspect .......................................................................................................................................5
4.4.3.
Pixel Composition and Sampling.......................................................................................................5
4.4.4.
Image Data Arrangement ..................................................................................................................7
4.5.
Basic Structure of Image Data..................................................................................................................8
4.5.1.
Basic Structure of Primary Image Data .............................................................................................8
4.5.2.
Basic Structure of Uncompressed RGB Data....................................................................................8
4.5.3.
Basic Structure of YCbCr Uncompressed Data...............................................................................10
4.5.4.
Basic Structure of JPEG Compressed Data....................................................................................11
4.5.5.
Basic Structure of Thumbnail Data..................................................................................................12
4.6.
Tags.........................................................................................................................................................13
4.6.1.
Features of Attribute Information .....................................................................................................13
4.6.2.
IFD Structure....................................................................................................................................13
4.6.3.
Exif-specific IFD...............................................................................................................................15
4.6.4.
TIFF Rev. 6.0 Attribute Information..................................................................................................16
4.6.5.
Exif IFD Attribute Information...........................................................................................................24
4.6.6.
GPS Attribute Information................................................................................................................46
4.6.7.
Interoperability IFD Attribute Information.........................................................................................53
4.6.8.
Tag Support Levels ..........................................................................................................................54
4.7.
JPEG Marker Segments Used in Exif.....................................................................................................58
4.7.1.
JPEG Marker Segments ..................................................................................................................58
4.7.2.
Interoperability Structure of APP1 in Compressed Data .................................................................64