Read EXIF/IPTC information from image in Cocoa
質問
I am unable to find any recent example on how to read EXIF/IPTC information from an image in Cocoa. Is there anything that can be easily done or should I use an external tool as exiftool and start it with NSTask ?
Thanks !
解決
You can use the Image Source functions from the Image IO library. Something like...
CGImageSourceCreateWithData(someCFDataRef, nil);
CFDictionaryRef dictRef = CGImageSourceCopyPropertiesAtIndex(imgSource, 0, nil);
should fill dictRef
with the EXIF data.
他のヒント
There's some code that appears useful here: http://devmacosx.blogspot.com/2011/07/nsimage-exif-metadata.html
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