ExifTool Forum

ExifTool => The "exiftool" Application => Topic started by: areohbee on October 23, 2014, 08:21:27 PM

Title: Can't read 'Temperature' tag from xmp (all other tags are readable: like 'Tint')
Post by: areohbee on October 23, 2014, 08:21:27 PM
for example:

exiftool -xmp-crs:Tint

yields

Tint  : +22

whereas

exiftool -xmp-crs:Temperature

yields

"nada"

note: the temperature is there too in the xmp - plain as day..

?

(sample xmpfile  attached)

PS - everything else I tried, ~half dozen, did just great (result as expected..), except temperature.
PPS - same in version 9.72 as 9.74 (Windows).

Note2: if attempt to write temperature tag, I get error: "xmp-crs:Temperature doesn't exist or isn't writable" (no problem writing other similar tags, like tint..).

Rob
Title: Re: Can't read 'Temperature' tag from xmp (all other tags are readable: like 'Tint')
Post by: Phil Harvey on October 23, 2014, 09:07:08 PM
Hi Rob,

Temperature is not an ExifTool XMP-crs tag (https://exiftool.org/TagNames/XMP.html#crs).

- Phil
Title: Re: Can't read 'Temperature' tag from xmp (all other tags are readable: like 'Tint')
Post by: areohbee on October 23, 2014, 10:46:07 PM
Hi Phil,

Uh - why not?

Or should I say, if it's correct to exclude it, can "we" not bend the rules so things work..(?)

Put another way - is there any possible way for me to read and/or write that 'Temperature' tag using exiftool? config file maybe??...

Rob
Title: Re: Can't read 'Temperature' tag from xmp (all other tags are readable: like 'Tint')
Post by: Hayo Baan on October 24, 2014, 02:42:22 AM
What Phil meant was that Temperature simply isn't a tag in the XMP-crs namespace and hence can not be accessed/written. I think by the way you mean ColorTemperature in this case (look at the link Phil provided and you'll see that the spec, not Phil, is a bit confused at this point).

Cheers,
Hayo
Title: Re: Can't read 'Temperature' tag from xmp (all other tags are readable: like 'Tint')
Post by: Phil Harvey on October 24, 2014, 04:39:25 AM
As Hayo mentioned, this tag is named ColorTemperature in ExifTool.

- Phil
Title: Re: Can't read 'Temperature' tag from xmp (all other tags are readable: like 'Tint')
Post by: areohbee on October 24, 2014, 05:13:56 AM
Sorry, my bad I guess - I tried previously to read that tag using 'ColorTemperature' but it didn't work. Just tried again, but this time: it worked (typo before maybe? - dunno..).

Thanks again, and sorry for the "false alarm"..

Rob