batman@helium:~$ sudo apt-get install imagemagick
identify to read the meta data
batman@helium:~$ identify -verbose link/to/image.jpg Image: image.jpg Format: JPEG (Joint Photographic Experts Group JFIF format) Mime type: image/jpeg Class: DirectClass Geometry: 458x458+0+0 Resolution: 72x72 Print size: 6.36111x6.36111 Units: PixelsPerInch Colorspace: sRGB Type: TrueColor Base type: Undefined Endianess: Undefined Depth: 8-bit Channel depth: red: 8-bit green: 8-bit blue: 8-bit ...
Restrict output to the exif information
If you are only interested in the exif information, you can limit the output using
batman@helium:~$ identify -verbose link/to/image.jpg | grep "exif:" exif:ApertureValue: 177537/78038 exif:BrightnessValue: 128447/18170 exif:ColorSpace: 1 exif:ComponentsConfiguration: 1, 2, 3, 0 exif:ExifImageLength: 458 exif:ExifImageWidth: 458 exif:ExifOffset: 170 exif:ExifVersion: 48, 50, 50, 49 exif:ExposureBiasValue: 0/1 exif:ExposureMode: 0 ...
Extract geo coordinates
And if, for example, you are only interested in the geo-coordinates in the photo, you can of course also search for them.
batman@helium:~$ identify -verbose link/to/image.jpg | grep "exif:GPS" exif:GPSAltitude: 125791/8327 exif:GPSAltitudeRef: 0 exif:GPSDateStamp: 2018:10:26 exif:GPSDestBearing: 268263/3437 exif:GPSDestBearingRef: T exif:GPSImgDirection: 611324/2369 exif:GPSImgDirectionRef: T exif:GPSInfo: 1670 exif:GPSLatitude: 35/1, 43/1, 5997/100 exif:GPSLatitudeRef: N exif:GPSLongitude: 139/1, 44/1, 4874/100 ...
With Great Power …
I needed this today because a photo was displayed in different orientations on different operating systems (correct on Windows, upside down on Ubuntu) and I wanted to find out what the photo actually says about it (spoiler: of course Ubuntu was right 😄).
It showed me once again how easy it is to reveal personal information. A photo taken with my mobile phone at home and uploaded to Facebook? Then you don’t need to leave an address - where you live is clear anyway.
Translated with www.DeepL.com/Translator (free version)