Hi Bruno, > The EXIF tags in imaging should match what's in this page: > https://sno.phy.queensu.ca/~phil/exiftool/TagNames/EXIF.html > > Which contains the XPComment and UserComment tags you mentioned, but no > equivalent to the other comment one.
this is quite inetersting. Actually I have been told that the command: exiftool -comment='mycomment' creates exaclty the comment I am not able to reproduce. Do you know what that is? > If you really need to match that tag, then I think you should be able to > create your own custom metadata entry. > > I think [1] the ExifRewriter and its test class have some code that shows how > to rewrite metadata. Find the directory (TiffOutputDirectory.java) with the > metadata fields, perhaps remove the UserComment/XPComment if necessary, and > then add a new field (TiffOutputField.java), with your metadata tag > (TagInfo.java) I will try again. I tried already that path, but since it asks me for a tag (integer) I then end up to have it named as the tag I am trying to substitute... Thanks, Andrea > > > Hope that helps, > Bruno > > > [1] > https://github.com/apache/commons-imaging/blob/master/src/main/java/org/apache/commons/imaging/formats/jpeg/exif/ExifRewriter.java > > ________________________________ > From: andrea antonello <[email protected]> > To: Commons Users List <[email protected]> > Sent: Thursday, 26 April 2018 1:46 AM > Subject: Re: [imaging] Comment tag problem > > > > Hi Bruno, > thanks for your reply. > >> I think you tried to include screenshots? If so, it doesn't work very well >> in this mailing list. > > > ohh, I didn't figure and didn't notice. > >> >> Could you try adding as attachment, or upload them, or use plain text to >> describe the issue? I recently had to work on the tags for some TIFF & JPEG >> metadata in [imaging], so hopefully we will be able to locate the right tag. > > > Fantastic. I investigated further but am still not able to solve this. > > The tag I would like to update is one that produces (at least this is > what I read in the imagemagick image info) a section > > Properties: > > and under start section I find > > comment: > GEO-Information,46.5640616313:11.523790723,46.5640616313:11.5093674258,46.5585048222:11.523790723,46.5585048222:11.5093674258,0.000000 > > The most similar result I have been able to produce with the tags is: > > exif:UserComment:GEO-Information,46.5640616313:11.523790723,46.5640616313:11.5093674258,46.5585048222:11.523790723,46.5585048222:11.5093674258,0.000000 > > and > > exif:WinXP-Comments:GEO-Information,46.5640616313:11.523790723,46.5640616313:11.5093674258,46.5585048222:11.523790723,46.5585048222:11.5093674258,0.000000 > > both not the same as what i am looking for. > > > I have been able to print the following information through an > application called exifprobe: > > @0x0000002=2 : <JPEG_COM> length 137: > ''GEO-Information,46.5640616313:11.523790723,46.5640616313:11.5093674258,46.5585048222:11.523790723,46.5585048222:11.5093674258,0.000000\0'' > @0x000008d=141 : <JPEG_APP0> 0xffe0 length 16, 'JFIF' > @0x0000096=150 : Version = 1.1 > @0x0000098=152 : Units = 'dots/inch' > @0x0000099=153 : Xdensity = 96 > @0x000009b=155 : Ydensity = 96 > @0x000009d=157 : XThumbnail = 0 > @0x000009e=158 : YThumbnail = 0 > @0x000009e=158 : </JPEG_APP0> > @0x000009f=159 : <JPEG_DQT> length 67 > @0x00000e4=228 : <JPEG_DQT> length 67 > @0x0000129=297 : <JPEG_SOF_0> length 17, 8 bits/sample, > components=3, width=1608, height=901 > @0x000013c=316 : <JPEG_DHT> length 31 table class = 0 table id = 0 > @0x000015d=349 : <JPEG_DHT> length 181 table class = 0 table id = 1 > @0x0000214=532 : <JPEG_DHT> length 31 table class = 1 table id = 0 > @0x0000235=565 : <JPEG_DHT> length 181 table class = 1 table id = 1 > @0x00002ec=748 : <JPEG_SOS> length 12 start of JPEG data, 3 > components 1448808 pixels > @0x006b1a4=438692 : <JPEG_EOI> JPEG length 438694 > > So I think this (JPEG_COM) is not an exif tag as I had been told. I am > guessing this is reflected by the library's ComSegment class, but I > could not find any documentation or testcase which would tell me what > it is and how to rewrite/update it. > > Any help is most appreciated, > Thanks, > > Andrea > > > > >> >> CheersBruno >> >> >> From: andrea antonello <[email protected]> >> To: Commons Users List <[email protected]> >> Sent: Wednesday, 25 April 2018 1:56 AM >> Subject: [imaging] Comment tag problem >> >> Hi, I need some help to find the right tag to use to recreate a tag in a >> jpeg file. >> >> Here is the output of the info given by ImageMagick: >> >> >> >> The tag I need should be under "Properties" >> and be named: comment >> >> I have tried to use user_comment and xpcomment, but they produce something >> different, like: >> >> >> >> Can anyone tell me which tag I can use to generate the "comment" tag? >> >> Thanks for any hint, >> Best regards, >> Andrea >> >> >> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
