I'm trying to sort out my collection which over time has various typo's and mis-spellings etc.
I've pretty much got everything sorted with one exception - namely XMP:Caption-Abstract.
I've used the example from MEDTA::CPAN to show me all tags and values from a test jpg which I know has the caption tag.
My Perl is very rusty and I cannot work out how to get the value of the returned Hash,
Can any one help with this syntax please?
Code:
#!/usr/bin/perl -w
#
#
use Image::ExifTool;
my $exifTool = new Image::ExifTool;
$exifTool->Options(Unknown => 1);
my $info = $exifTool->ImageInfo('G:/wamp64/www/TestPhotoTags/Photos/Other/camera03.JPG');
my $group = '';
my $tag;
foreach $tag ($exifTool->GetFoundTags('Group0'))
{
if ($group ne $exifTool->GetGroup($tag))
{
$group = $exifTool->GetGroup($tag);
print "---- $group ----\n";
}
my $val = $info->{$tag};
if (ref $val eq 'SCALAR')
{
if ($$val =~ /^Binary data/)
{
$val = "($$val)";
}
else
{
my $len = length($$val);
$val = "(Binary data $len bytes)";
}
}
printf("%-32s : %s\n", $exifTool->GetDescription($tag), $val);
}
StarGeek Edit: Edited to correct formatting. Please use the (https://i.imgur.com/i6Bk030.png) button for exiftool code/output.
Your code appears to work correctly here
C:\Programs\My_Stuff>test.pl
---- ExifTool ----
ExifTool Version Number : 12.42
---- File ----
File Name : Test4.jpg
Directory : y:\!temp
File Size : 449 kB
File Modification Date/Time : 2022:09:29 16:00:52-07:00
File Access Date/Time : 2022:10:05 08:16:12-07:00
File Creation Date/Time : 2022:09:29 12:00:00-07:00
File Permissions : -rw-rw-rw-
File Type : JPEG
File Type Extension : jpg
MIME Type : image/jpeg
Current IPTC Digest : b766aa8110fc406204de90b7974957a7
Image Width : 1749
Image Height : 1205
Encoding Process : Baseline DCT, Huffman coding
Bits Per Sample : 8
Color Components : 3
Y Cb Cr Sub Sampling : YCbCr4:2:0 (2 2)
---- IPTC ----
Headline : headline
Caption-Abstract : Description
Application Record Version : 4
---- XMP ----
XMP Toolkit : Image::ExifTool 12.47
Description : Description
Headline : headline
---- Composite ----
Image Size : 1749x1205
Megapixels : 2.1
Caption-Abstract is a IPTC IIM/Legacy tag, not XMP. The equivalent XMP tag is Description.
Hi StarGeek,
thanks for reply.
I realised I was several versions of exiftool out of date so have just updated and rerun script.
I'm still getting Hash returned for Caption.
I have attached the output from script so could you please take another look and let me know?
PS: although I have updated, the XMP toolkit is showing as 10.20.
Could this be part of my problem?
many thanks
This will happen if Caption is a structure and you have enabled the Struct option. Are you using a .ExifTool_config file that enables the API Struct option? If not, post the original XMP (ie. out.xmp from the command below) and we should be able to figure it out.
exiftool -xmp -b G:/wamp64/www/TestPhotoTags/Photos/Other/IMG_0001.jpg > out.xmp
"Caption" is not a standard XMP tag, so I would need to see the XMP to know what is going on.
- Phil
Hi Phil,
sorry hit escape by accident
So as far as I know I'm using standard config. I've never changed anything in this.
output from command is attached.
thanks for progressing this
Quote from: lfcnutter on October 06, 2022, 04:25:30 AMI'm still getting Hash returned for Caption.
From the attached file
<rdf:Description rdf:about=''
xmlns:acdsee='http://ns.acdsee.com/iptc/1.0/'>
<acdsee:caption>HASH(0x3dd9880)</acdsee:caption>
</rdf:Description>So you're getting HASH because that is the value that
Caption has been set to.
Quote from: StarGeek on October 06, 2022, 10:06:01 AM<acdsee:caption>HASH(0x3dd9880)</acdsee:caption>
So you're getting HASH because that is the value that Caption has been set to.
Wow. I didn't see that one coming! :P
Surely ExifTool wrote this XMP, so the question is: How did that value get in there? It could happen if a structure was written incorrectly to a string-type tag via the API. If it happens via the exiftool app, then it is something that needs to be fixed.
- Phil
Maybe I can shed some light here.
I used exiftool to write the tags to a csv file
as per
exiftool -csv -Caption-Abstract -Comment -Description -ImageDescription -Headline -ObjectName -Title -UserComment -Subject -Keywords "G:/wamp64/www/TestPhotoTags/Photos/*/*.jpg" > out.csv
I then modified the contents of the csv file to correct the typos and mistakes and reloaded
as per
exiftool -csv=out.csv "G:/wamp64/www/TestPhotoTags/Photos/*/*.jpg"
could this be a mistake on my part that's caused the problem?
That shouldn't write a "Caption" tag, unless you changed the heading from "Caption-Abstract" to "Caption", but even then it shouldn't write a structure like that.
- Phil
Ok so I have attached two csv files
the first as generated by the -csv command
and the second by the -csv= command
at present I haven't run the second command as I don't want to screw up any more.
Hope this helps
Neither CSV shows any entries containing the word "HASH", so this isn't where it came from.
- Phil
The only time I've gotten a HASH value is when I'm writing code for a user defined tag and I don't properly de-reference something. I can never keep straight what's a reference and what's not and how to properly de-reference a value.
Yes, that can be confusing sometimes.
- Phil
OK guys,I think I'm sorted now.
I've abandoned the -csv -csv= approach in favour of a perl script.
I found that keywords and subject were being added as a single keyword using above method.
I have now got my perl script sorted and can now update all my tags as I wanted.
Sorry if I've taken up so much of your time and effort it's been really appreciated.
regards and thanks for a brilliant exifTool
Quote from: lfcnutter on October 07, 2022, 10:01:56 AMI found that keywords and subject were being added as a single keyword using above method.
From the docs on the
-csv option (https://exiftool.org/exiftool_pod.html#csv-CSVFILE)
List-type tags are stored as simple strings in a CSV file, but the -sep option may be used to split them back into separate items when importing.