Re: Reading & writing Exif data with Cocoa
Re: Reading & writing Exif data with Cocoa
- Subject: Re: Reading & writing Exif data with Cocoa
- From: Heinrich Giesen <email@hidden>
- Date: Tue, 5 Jul 2005 21:21:29 +0200
Hello,
On 05.07.2005, at 19:05, fp12 wrote:
I'm currently working on an application that needs to write EXIF (and
moreover GPS) data in a jpeg file.
I use NSBitmapImageRep, but I think there's something wrong with it,
because it doesn't even work for reading : |NSImageEXIFData| does NOT
contain any GPS information.
So, is it possible to get/set GPS info with the Cocoa API ? Am I in
the
wrong way to make it ?
NSBitmapImageRep contains only a small part of the Exif Data. You have
to read the original image data from file. I wrote such an app.
(I couldn't test it with GPS data because I had not such an image).
But there exist some C Programs that can show all Exif Data. Some
programs are free, some are shareware.
Some hints:
http://www.hugsan.com/EXIFutils
http://johnst.org/sw/exiftags/
Your image contains these GPS data:
GPS
Version : 2.0.0.0
Latitude Reference : North
Latitude : 58 23 2.760
Longitude Reference : West
Longitude : 134 38 52.08
Geodetic Survey Data : WGS-84
--
Heinrich Giesen
email@hidden
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