exif

Documentation

Overview

Package exif provides methods for manipulating EXIF data in images.

Index

• func TagIndex(r io.Reader) (*go_exif.IfdIndex, error)
• func TagValue(r io.Reader, tag_name string, ifds_name string) (*go_exif.IfdTagEntry, error)
• func TagValueWithIndex(index *go_exif.IfdIndex, tag_name string, ifds_name string) (*go_exif.IfdTagEntry, error)
• func TagValues(r io.Reader, tag_name string, require_ifd ...string) (map[string]*go_exif.IfdTagEntry, error)
• func TagValuesWithIndex(index *go_exif.IfdIndex, tag_name string, require_ifd ...string) (map[string]*go_exif.IfdTagEntry, error)
• func UpdateExif(im image.Image, wr io.Writer, exif_props map[string]interface{}) error

Functions

func TagIndex

func TagIndex(r io.Reader) (*go_exif.IfdIndex, error)

func TagValue

func TagValue(r io.Reader, tag_name string, ifds_name string) (*go_exif.IfdTagEntry, error)

func TagValueWithIndex

func TagValueWithIndex(index *go_exif.IfdIndex, tag_name string, ifds_name string) (*go_exif.IfdTagEntry, error)

func TagValues

func TagValues(r io.Reader, tag_name string, require_ifd ...string) (map[string]*go_exif.IfdTagEntry, error)

func TagValuesWithIndex

func TagValuesWithIndex(index *go_exif.IfdIndex, tag_name string, require_ifd ...string) (map[string]*go_exif.IfdTagEntry, error)

func UpdateExif

func UpdateExif(im image.Image, wr io.Writer, exif_props map[string]interface{}) error

UpdateExif will encode 'im' as a JPEG image and write it to a temporary file and then copy that (temporary) file to 'wr' with EXIF properties defined by 'exif_props'.