Read exif/xmp data from photo

[Chris Wright]

unless you want to go crazy and program the code yourself, I’d recommend simply taking the data from a command line tool already finished.

exiftool(-k).exe
https://www.sno.phy.queensu.ca/~phil/exiftool/

adobe has their xmp sdk download with sample code too.
https://metadatadeluxe.pbworks.com/Adobe-XMP

if you do want to go crazy, here’s some prebuilt libraries with examples
https://www.codeproject.com/KB/graphics/exifextractor.aspx
https://www.drewnoakes.com/code/exif/sampleUsage.html
https://borys.name/blog/extract_xmp_tags_from_jpeg_in_java.html

https://technicolorsoftware.hostzi.com/

[Dan Ebberts]

You can’t do it with an expression, but you could do it with a script. It can be tricky navigating XMP data, but it would look something like this:


{
if (ExternalObject.AdobeXMPScript == undefined) {
ExternalObject.AdobeXMPScript = new ExternalObject('lib:AdobeXMPScript'); }
var metaFile = File.openDialog("Select file to import.");
var xmpFile = new XMPFile( metaFile.fsName, XMPConst.FILE_UNKNOWN, XMPConst.OPEN_FOR_READ);
var xmp = xmpFile.getXMP();
var myExposureTime = xmp.getProperty(XMPConst.NS_EXIF, "ExposureTime");
var myISO = xmp.getArrayItem(XMPConst.NS_EXIF, "ISOSpeedRatings", 1);
alert("exposureTime: " + myExposureTime.toString() + " ISO: " + myISO.toString());
xmpFile.closeFile();
metaFile.close();
}


Dan

[Chris Wright]

I hope you guys get that working. In the meantime, I tried this and it works perfect. The script writes to a text file that AE can import as text in a simple script.

exiftool -T -iso c:ab.jpg > out.txt”)

https://technicolorsoftware.hostzi.com/

[Robert Rodick]

Sorry for the late reaction. But thank you for the script.

[Chris Wright]

Does this work in some fashion? I tried the bare minimum and it didn’t work. and adobe.com said they don’t support this feature, unless I misunderstood.

https://technicolorsoftware.hostzi.com/

[Tim Smith]

Hi Dan,

Curious if you know how, if it’s at all possible, to dump all the namespace URI’s contained in a files meta data?

Seem to be having problems accessing certain namespace’s properties that I know exist.

….or if you know of the limitations to AE’s ability to access this information?