On mercredi 15 mars 2023 12:27:24 CET Frank J. wrote: > Am 15.03.23 um 07:45 schrieb Remco Viëtor: > > On mardi 14 mars 2023 18:29:23 CET Frank J. wrote: > >> Hi, > >> I want to use the “description” metadata from darktable [1] as caption > >> in WordPress. > >> In german language there are some characters which are not in ASCII but > >> in Unicode/UTF-8. > >> Umlaute: ä ö ü ß -> HTML: ä ö ü ß > >> > >> When a raw-picture is exported as JPG from darktable, then the > >> “description” metadata is embedded into the exif-data: > >> > >> - description whithout “umlaute” is written to EXIF ImageDescription > >> field (ascii). > >> > >> - description WHITH “umlaute” is written to EXIF UserComment field > >> (unicode). > >> > >> I try the Plugins "Exif Caption" und "Exif Details" for import into > >> wordpress. > >> > >> As written in [2] the UserComment should be imported to wordpress: > >> [“caption”] > >> (string) Set to a non-empty value of one of the following fields: > >> … > >> EXIF UserComment field if [“title”] is unset AND > >> > >> EXIF:ImageDescription is less than 80 characters > >> > >> But for pictures with “umlaute” the caption in wordpress stay empty. The > >> description is lost. > > > > Iirc, EXIF can only store ASCII characters, so umlauts (and things like > > éèà) are not allowed there. That may make the library used for reading > > the data discard the text as invalid. > > > > But that concerns the "real" EXIF metadata, not the equivalent fields in > > > > XMP(*). IPTC also allows non-ASCII. So if at all possible, you may be > > better off using XMP or IPTC metadata. > > > > Remco > > > > (*: There are three "types" of image metadata: EXIF, IPTC and XMP, which > > differ in the way they are stored in the file, the character sets used, > > and > > the maximum field lengths. The fields in the EXIF and IPTC sections can > > also be stored as XMP fields, but that doesn't mean they will be read > > when you ask for an EXIF or IPTC field). > > /> you may be better off using XMP or IPTC metadata./ > > I'm not a darktable-developer but just a user. So I only can use, what > darktable supports. (...)
All I can say is that it is possible to get captions and titles exported in a jpeg in the XMP metadata section. Whether your wordpress plugin is able to read that section is another question, better asked on a wordpress list or forum... Remco ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
