Package Exports

exif-reader
exif-reader/index.js

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (exif-reader) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

exif-reader

A small EXIF image metadata reader.

Usage

npm install exif-reader

var exif = require('exif-reader');

// decode raw exif data from a buffer
var metadata = exif(buf);

Support is also built into jpg-stream for extracting EXIF data from JPEGs using this module.

Resulting properties are grouped as follows:

bigEndian: determines the endianness of the buffers (in case of non-ascii data)
image: basic TIFF properties about the image
thumbnail: basic TIFF properties about the embedded thumbnail
exif: full exif data
gps: GPS/location data about the image
interoperability: interoperability information

Not all of these properties will always be defined.

Here is some example output:

{ bigEndian: true,
  image: 
   { Make: 'Apple',
     Model: 'iPhone 6',
     Orientation: 1,
     XResolution: 72,
     YResolution: 72,
     ResolutionUnit: 2,
     Software: 'Photos 1.0',
     ModifyDate: Sat Feb 28 2015 17:13:57 GMT-0800 (PST),
     ExifOffset: 198,
     GPSInfo: 1008 },
  exif: 
   { ExposureTime: 0.0020491803278688526,
     FNumber: 2.2,
     ExposureProgram: 2,
     ISO: 32,
     ExifVersion: <Buffer 30 32 32 31>,
     DateTimeOriginal: Sat Feb 28 2015 17:13:57 GMT-0800 (PST),
     DateTimeDigitized: Sat Feb 28 2015 17:13:57 GMT-0800 (PST),
     ComponentsConfiguration: <Buffer 01 02 03 00>,
     ShutterSpeedValue: 8.930864197530864,
     ApertureValue: 2.2750072066878064,
     BrightnessValue: 7.991,
     ExposureBiasValue: 0,
     MeteringMode: 3,
     Flash: 16,
     FocalLength: 4.15,
     SubjectArea: [ 964, 1287, 610, 612 ],
     MakerNote: <Buffer 41 70 70 6c 65 20 69 4f 53 00 00 01 4d 4d 00 08 00 ...>,
     SubSecTimeOriginal: '476',
     SubSecTimeDigitized: '476',
     FlashpixVersion: <Buffer 30 31 30 30>,
     ColorSpace: 1,
     PixelXDimension: 3264,
     PixelYDimension: 2448,
     SensingMethod: 2,
     SceneType: <Buffer 01>,
     ExposureMode: 0,
     WhiteBalance: 0,
     FocalLengthIn35mmFormat: 29,
     SceneCaptureType: 0,
     LensSpecification: [ 4.15, 4.15, 2.2, 2.2 ],
     LensMake: 'Apple',
     LensModel: 'iPhone 6 back camera 4.15mm f/2.2' },
  gps: 
   { GPSLatitudeRef: 'N',
     GPSLatitude: [ 35, 18, 1.49 ],
     GPSLongitudeRef: 'W',
     GPSLongitude: [ 120, 39, 44.23 ],
     GPSAltitudeRef: 0,
     GPSAltitude: 97,
     GPSTimeStamp: [ 1, 13, 57 ],
     GPSSpeedRef: 'K',
     GPSSpeed: 0,
     GPSImgDirectionRef: 'T',
     GPSImgDirection: 347.4401408450704,
     GPSDestBearingRef: 'T',
     GPSDestBearing: 167.44014084507043,
     GPSDateStamp: '2015:03:01' } }

License

MIT