SUMMARY I worked with digiKam 7.3.0 snapshot 17.6.2021 on a Windows 10 system. I opened a test.jpg with Showfoto - the image is stored inside a directory with non ASCII characters ( German umlauts ) - the image contains Exif, IPTC and XMP metadata and all contain strings with non ASCII characters (Chinese characters) In Showfoto I clicked on Metadata (in right panel) and tab Exiftool. Here I see that the filename/directoryname is not displayed properly. The IPTC-metadata (with chinese characters) are also not displayed properly. In tab Exiftool Exif and XMP metadata are displayed properly. By the way, please allow another question: Why are the metadata displayed by Exiftool in "unconverted" format? STEPS TO REPRODUCE 1. 2. 3. OBSERVED RESULT EXPECTED RESULT SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION
Hi, Exif, Makernotes, Iptc, and XMP metadata view are based on Exiv2 library, not ExifTool. Exiv2 has limitations compared to ExifTool. Exiv2 support UTF8. ExifTool metadata view render all metadata supported by ExifTool. The way to populated information in this view is completely different, even if you found Exif, Iptc and Xmp info here. ExifTool report information by a JSON container to the metadata view. Typically, data are encoded to UTF8 by default, as we can read in the documentation. I strange to see string badly encoded here. Gilles Caulier
Can you share a file with non ascii characters in metadata to double check here. Thanks in advance Gilles Caulier
Git commit d6d333679747fffa63d22644244432d84def8753 by Maik Qualmann. Committed on 19/06/2021 at 06:43. Pushed by mqualmann into branch 'master'. try with the charset command for ExifTool M +3 -0 core/libs/metadataengine/exiftool/exiftoolprocess.cpp https://invent.kde.org/graphics/digikam/commit/d6d333679747fffa63d22644244432d84def8753
@Gilles It's probably just about the file properties that are displayed in ASCII. We use local 8Bit so that e.g. file paths with German special characters work. In the ExifTool ListViewer, these file names and paths are replaced by their special characters with a "?". Maik
We use local 8 bits... hum where exactly ? Gilles
> By the way, please allow another question: > Why are the metadata displayed by Exiftool in "unconverted" format? Do you mean that e.g. a lens name is not displayed with its real name? I just see this for my lens. At the moment, however, cannot test whether it is displayed in the ExifTool command line. Maik
(In reply to caulier.gilles from comment #5) > We use local 8 bits... hum where exactly ? We use it on Windows when we pass the file path. Tests with UTF8 and UTF-16 did not work. Maik
Hello, thanks to all for your investigations. Please let me answer your question of comment 6 first with an example of Exiftool output (in German) Tag unconverted converted LensID 0 14 10 Olympus M.Zuiko Digital ... ExposureMode 1 Manuelle Belichtung ExposureProgram 4 Blendenautomatik Orientation 1 Horizontal (Normal) GPSLongitude 11.8962133 11 53.7728 For me the "converted (by Exiftool)" output is much better to read.
Hello, here a comment to Comment 1: You wrote: ExifTool report information by a JSON container to the metadata view. Typically, data are encoded to UTF8 by default, as we can read in the documentation. As all Exif tag-values with unicode-characters are displayed properly in tab Exiftool, I guess you started Exiftool with option -charset exif=utf8. As all IPTC tag-values with unicode-characters are NOT displayed properly in tab Exiftool, I guess you did not start Exiftool with option -charset iptc=utf8. But this is just a guess. You also wrote: "...report information by a JSON container..." I hope you are aware that this container does not allow double entries. So in case of a tag is > 1 available inside the metadata, only one of them is contained in json-output.
>You also wrote: "...report information by a JSON container..." >I hope you are aware that this container does not allow double entries. >So in case of a tag is > 1 available inside the metadata, only one of them is >contained in json-output. JSON container is generated by ExifTool. So i guest this point is already handle by ExifTool as well... Gilles Caulier
>As all Exif tag-values with unicode-characters are displayed properly in tab >Exiftool, I guess you started Exiftool with option -charset exif=utf8. No bu this must be done by default by ExifTool. This is no risk to add this option. As all IPTC tag-values with unicode-characters are NOT displayed properly in tab Exiftool, I guess you did not start Exiftool with option -charset iptc=utf8. But this is just a guess. Idem. Pointer to code : https://invent.kde.org/graphics/digikam/-/blob/master/core/libs/metadataengine/exiftool/exiftoolprocess.cpp#L132 Gilles Caulier
From ExifTool documentation: "-charset [[TYPE=]CHARSET] If TYPE is ExifTool or not specified, this option sets the ExifTool character encoding for output tag values when reading and input values when writing, with a default of UTF8. If no CHARSET is given, a list of available character sets is returned." So we must append "-charset UTF8" in ExifTool CLI argument. This will turn on UTF8 for all metadata parsed by ExifTool. Gilles Caulier
In your test image shared by private email, IPTC miss char encoding tag as something like that: IPTC:CodedCharacterSet=utf8 https://exiftool.org/forum/index.php?topic=4052.0 Gilles Caulier
Which program did you use to add the tags? Windows Explorer? Then it should be UTF 16 and this contradicts the metadata standard. Maik
Hello, @ Gilles: You wrote: In your test image shared by private email, IPTC miss char encoding tag as something like that: IPTC:CodedCharacterSet=utf8 As far as I know this tag is not mandatory. @ Maik: To write tags into files I always used Exiftool. Best regards herb
Hello, a comment to your comment 10: JSON container is generated by ExifTool. So i guest this point is already handle by ExifTool as well... That is not always true. Depending on the options/parameters you send to Exiftool asking for tags and their values, Exiftool will build a json file. In case of double tags Exiftool does not include all, but only one, because of the json standard. For one detail please see (in Exiftool forum): https://exiftool.org/forum/index.php?topic=11604.msg62230#msg62230 Best regards herb
This tag is _highly_ recommended for interoperability. If it's not present, tags encoding is interpreted as... ASCII by default.
Your test image shows all entries with special characters incorrectly here under Linux with the ExifTool in the command line, regardless of whether they are XMP, EXIF or IPTC. Was it possibly tagged with an older faulty version of ExifTool? ExifTool Version Number : 12.25 File Name : Photo_Metadata_IPTC_unicode.JPG Directory : . File Size : 4.6 MiB File Modification Date/Time : 2020:03:18 14:19:02+01:00 File Access Date/Time : 2021:06:19 12:27:41+02:00 File Inode Change Date/Time : 2021:06:19 12:27:40+02:00 File Permissions : -rw-r--r-- File Type : JPEG File Type Extension : jpg MIME Type : image/jpeg Exif Byte Order : Little-endian (Intel, II) Image Description : All三山gemeine Beschreibung des Bildinhaltes Make : OLYMPUS IMAGING CORP. Camera Model Name : E-PL6 Orientation : Horizontal (normal) X Resolution : 350 Y Resolution : 350 Resolution Unit : inches Software : 三山 Modify Date : 2019:01:19 11:51:16 Artist : artist1三山 Y Cb Cr Positioning : Co-sited Copyright : Copyright 三山 2020 Ego Michse Exposure Time : 1/640 F Number : 9.0 Exposure Program : Shutter speed priority AE ISO : 200 Sensitivity Type : Standard Output Sensitivity Exif Version : 0230 Date/Time Original : 2019:01:19 11:51:16 Create Date : 2020:04:16 08:09:10 Offset Time : +02:00 Offset Time Original : +02:00 Offset Time Digitized : +02:00 Components Configuration : Y, Cb, Cr, - Exposure Compensation : -0.3 Max Aperture Value : 4.0 Light Source : Unknown Flash : On, Did not fire Focal Length : 150.0 mm Special Mode : Normal, Sequence: 0, Panorama: (none) Camera ID : OLYMPUS DIGITAL CAMERA Equipment Version : 0100 Camera Type 2 : E-PL6 Serial Number : V3PF01641 Internal Serial Number : 4146312000064101 Focal Plane Diagonal : 21.6 mm Body Firmware Version : 1.301 Lens Type : Olympus M.Zuiko Digital ED 40-150mm F4.0-5.6 R Lens Serial Number : ABJA20101 Lens Firmware Version : 1.004 Max Aperture At Min Focal : 4.0 Max Aperture At Max Focal : 5.6 Min Focal Length : 40 Max Focal Length : 150 Max Aperture : 5.8 Lens Properties : 0xc140 Extender : None Extender Serial Number : Extender Model : Extender Firmware Version : 0 Conversion Lens : Flash Type : None Flash Model : None Flash Firmware Version : 0 Flash Serial Number : Camera Settings Version : 0100 Preview Image Valid : Yes Preview Image Start : 4370283 Preview Image Length : 486590 AE Lock : Off Metering Mode : ESP Exposure Shift : 0 Macro Mode : Off Focus Mode : Single AF; S-AF, Imager AF Focus Process : AF Used; 64 AF Search : Ready AF Areas : (113,107)-(142,145) AF Point Selected : (49%,49%) (49%,49%) AF Fine Tune : Off AF Fine Tune Adj : 0 0 0 Flash Mode : Fill-in, 2nd Curtain Flash Exposure Comp : 0 Flash Remote Control : Off Flash Control Mode : Off; 0; 0; 0 Flash Intensity : n/a (x4) Manual Flash Strength : n/a (x4) White Balance 2 : Auto White Balance Temperature : Auto White Balance Bracket : 0 0 Custom Saturation : 0 (min -5, max 5) Modified Saturation : Off Contrast Setting : 0 (min -5, max 5) Sharpness Setting : 0 (min -5, max 5) Scene Mode : Standard Noise Reduction : (none) Distortion Correction : Off Shading Compensation : Off Compression Factor : 4 Gradation : Normal; User-Selected Picture Mode : Natural; 2 Picture Mode Saturation : 0 (min -2, max 2) Picture Mode Contrast : 0 (min -2, max 2) Picture Mode Sharpness : 0 (min -2, max 2) Picture Mode BW Filter : n/a Picture Mode Tone : n/a Noise Filter : Standard Art Filter : Off; 0; 0; 0 Picture Mode Effect : Standard Tone Level : Highlights; 0; -7; 7; Shadows; 0; -7; 7; 0; 0; 0; 0 Art Filter Effect : Off; 0; 0; Partial Color 0; No Effect; 0; No Color Filter; 0; 0; 0; 0; 0; 0; 0; 0; 0; 0; 0; 0; 0 Drive Mode : Single Shot Panorama Mode : Off Image Stabilization : On, Mode 1 Manometer Pressure : 0 kPa Manometer Reading : 0 m, 0 ft Extended WB Detect : Off Raw Dev Version : 0100 Raw Dev Exposure Bias Value : 0 Raw Dev White Balance Value : 0 Raw Dev WB Fine Adjustment : 0 Raw Dev Gray Point : 0 0 0 Raw Dev Saturation Emphasis : 0 0 0 Raw Dev Memory Color Emphasis : 0 Raw Dev Contrast Value : 0 0 0 Raw Dev Sharpness Value : 0 0 0 Raw Dev Color Space : sRGB Raw Dev Engine : High Speed Raw Dev Noise Reduction : (none) Raw Dev Edit Status : Original Raw Dev Settings : (none) Image Processing Version : 0112 WB RB Levels : 500 512 256 256 Color Matrix : 404 -116 -32 -62 368 -50 8 -116 364 Black Level 2 : 255 255 255 255 Gain Base : 256 Crop Left : 8 0 Crop Top : 8 0 Crop Width : 4608 Crop Height : 3456 Sensor Calibration : 4038 0 Noise Reduction 2 : (none) Distortion Correction 2 : Off Shading Compensation 2 : Off Multiple Exposure Mode : Off; 1 Aspect Ratio : 3:2 Aspect Frame : 0 0 4607 3071 Faces Detected : 0 0 0 Face Detect Area : (Binary data 383 bytes, use -b option to extract) Max Faces : 8 8 0 Face Detect Frame Size : 0 0 0 0 0 0 Face Detect Frame Crop : 0 0 0 0 0 0 0 0 0 0 0 0 Focus Info Version : 0100 Scene Detect : 0 Zoom Step Count : 31 Focus Step Count : 1130 Focus Step Infinity : 0 Focus Step Near : 0 Focus Distance : 1.255 m AF Point : Left (or n/a) External Flash : Off External Flash Bounce : Bounce or Off External Flash Zoom : 0 Internal Flash : Off Manual Flash : Off Macro LED : Off Sensor Temperature : 36.8 C User Comment : nocomment Sub Sec Time : 123 Sub Sec Time Original : 456 Sub Sec Time Digitized : 789 Flashpix Version : 0100 Color Space : sRGB Exif Image Width : 4608 Exif Image Height : 3072 Interoperability Index : R98 - DCF basic file (sRGB) Interoperability Version : 0100 File Source : Digital Camera Custom Rendered : Normal Exposure Mode : Manual White Balance : Auto Digital Zoom Ratio : 1 Scene Capture Type : Standard Gain Control : Low gain up Contrast : Normal Saturation : Normal Sharpness : Normal Owner Name : 三山三山 Lens Info : 40-150mm f/4-5.6 Lens Model : OLYMPUS M.40-150mm F4.0-5.6 R GPS Version ID : 2.3.0.0 GPS Altitude Ref : Above Sea Level GPS Time Stamp : 13:35:00 GPS Map Datum : CRS GPS Date Stamp : 2020:04:23 Time Zone Offset : -3 2 PrintIM Version : 0300 Compression : JPEG (old-style) Thumbnail Offset : 12326 Thumbnail Length : 4175 Current IPTC Digest : bc5c28da76274ca56a564a16bb61bb2b Keywords : Schlüssel三山wort1, Schlüssel三山wort2 By-line : its me 三山, its 三山 you By-line Title : Dev三山eloper Contact : Ego三山 Michse Writer-Editor : Ego三山 Michse Application Record Version : 4 Object Name : Be三山zeichnung des Objektes Subject Reference : subject:reference Category : XXX Special Instructions : None三山 Time Created : 11:12:13+02:00 Sub-location : Motiv三山 in dieser Stadt Province-State : Stadt三山 im Bundesland Country-Primary Location Code : GER Country-Primary Location Name : Deut三山schland Copyright Notice : Copy三山right 2020 by ME Caption-Abstract : Zu三山sammenfassung des Bildinhaltes Copyright Flag : True URL : http:byme.com IPTC Digest : fe2570685b0e165bf2af73afaead142b XMP Toolkit : Image::ExifTool 12.22 Country Code : de-DE Creator City : Mü三山nchen Creator Country : Bayern Creator Address : mini三山 street 21 Creator Postal Code : 81379 Creator Region : Oberbayern Creator Work Email : ego@web.de Creator Work Telephone : 123456 Creator Work URL : http://hier.web.org Intellectual Genre : SUM Location : genau三山 hier Scene : 011900 Aktionsaufnahme Subject Code : 14006000 Familie Additional Model Information : non三山e Artwork Circa Date Created : 2019 Artwork Content Description : 三山content description Artwork Contribution Description: co三山ntribution Artwork Copyright Notice : copy三山right by me 2019 Artwork Creator : Ego 三山 Michse Artwork Creator ID : 111三山 Artwork Copyright Owner ID : 111 Artwork Copyright Owner Name : Ego三山 Michse Artwork Licensor ID : 111 Artwork Licensor Name : Ego Michse Artwork Date Created : 2020:05:25 10:10:00 Artwork Physical Description : the m三山aterial Artwork Source : made 三山 by me Artwork Source Inventory No : 123456 Artwork Source Inv URL : http://my.domain.de Artwork Style Period : modern art三山 Artwork Title : a 三山short title Digital Image GUID : guid Digital Source Type : http://cv.iptc.org/newscodes/digitalsourcetype/digitalCapture Event : Er三山eignis Genre Cv Id : CvId Genre Cv Term Id : CvTermId Genre Cv Term Name : CvTerm三山Name Genre Cv Term Refined About : Cv三山About Location Created City : St三山adt Location Created Country Code : GER Location Created Country Name : Ba三山yern Location Created Location Id : my-id Location Created Location Name : Ho三山frunde Location Created Province State : Bayern Location Created Sublocation : Hinterhof Location Created World Region : Europa Location Created Identifier : abc三山de Location Shown City : Stadt三山 Location Shown Country Code : GER Location Shown Country Name : Ba三山yern Location Shown Location Id : my-id Location Shown Location Name : Hof三山runde Location Shown Province State : Bayern Location Shown Sublocation : Hin三山terhof Location Shown World Region : Euro三山pa Location Shown Identifier : ab三山cde Max Avail Height : 1000 Max Avail Width : 999 Model Age : 99 Organisation In Image Code : image三山三山code Organisation In Image Name : name Person In Image : Max三山imillian Person In Image Cv Term Cv Id : cvid Person In Image Cv Term Id : termid Person In Image Cv Term Name : term三山name Person In Image Cv Term Refined About: about Person In Image Description : desc三山ription Person In Image Id : id Person In Image Name : na三山me Product In Image Description : Pro三山duct Product In Image GTIN : P-GTIN Product In Image Name : Product 三山 Name Registry Item ID : itemid Registry Organisation ID : orgi三山d Contributor : Non三山e Creator : Eg三山o Michse Description : Beschreibung三山 wie Bildbeschreibung Format : format Rights : Copy三山right Ego Michse Rights (de) : Alle三山 Rechte 2020 Ego Michse Rights (en) : copyright三山 only Subject : Schlüssel三山wort1, Schlüssel三山wort2 Title : Tite三山l wie Überschrift GPS Differential : No Correction GPS Img Direction : 13.1233998975934 GPS Img Direction Ref : Magnetic North Authors Position : authors三山position:teacher Caption Writer : caption三山writer City : München三山 Country : Oberland三山 Credit : no credit Date Created : 2020:01:02 11:10:09 Document Ancestors : an三山cestors Headline : Üb三山erschrift Instructions : no instructions Source : digital State : Bayern三山 Transmission Reference : ref Urgency : 2 Adult Content Warning : Not Required Copyright Owner ID : CO-ID Copyright Owner Name : CO-NA三山ME Copyright Owner Image ID : owne 三山-image-id Copyright Registration Number : re三山gistration-number Copyright Status : Protected Credit Line Required : Credit on Image End User ID : userID End User Name : userName File Name As Delivered : Name as deliverd First Publication Date : 2020:02:02 Image Alteration Constraints : No Cropping Image Creator ID : icid Image Creator Name : ic三山name Image Creator Image ID : creat三山or-imageid Image Duplication Constraints : No Duplication Constraints Image File Constraints : Maintain File Name Image File Format As Delivered : Other Image File Size As Delivered : Up to 1 MB Image Supplier ID : IS-ID Image Supplier Name : IS-N三山AME Image Supplier Image ID : IS-IID Image Type : Other License End Date : 2030:12:31 License ID : license id License Start Date : 2020:01:01 License Transaction Date : 2020:01:01 Licensee ID : licensee-id Licensee Name : licensee三山-name Licensee Image ID : licensee三山-image-id Licensee Image Notes : l-notes.l-notierung.l-notes Licensee Project Reference : referenc三山e1, reference2 Licensee Transaction ID : trans三山action-id1, transaction-id2 Licensor City : l-city三山 Licensor Country : l-country三山 Licensor Email : l-mail Licensor Extended Address : l-address三山 Licensor ID : l-id Licensor Name : l-name三山 Licensor Postal Code : l-pcode Licensor Region : l-region Licensor Street Address : l-street三山 Licensor Telephone 1 : l-phone Licensor URL : l-url Licensor Image ID : l-image-id Licensor Notes : l-no三山te1.l-not三山ierung2 Minor Model Age Disclosure : Age 25 or Over Other Conditions : other conditions Other Image Info : image info1.image-information2 Other License Info : license info1.license information2 Other License Requirements : req1.anforderung2 Reuse : Not Applicable Terms And Conditions Text : termsconditions Terms And Conditions URL : https://here.com Creator Tool : creatortool Label : Farb三山markierung Metadata Date : 2020:05:24 00:00:00 Rating : -1 Document ID : 123三山abc History Action : noaction History Changed : nochange History Instance ID : id History Parameters : no params History Software Agent : agent History When : 2020:05:24 00:00:00 Instance ID : instI三山DD Original Document ID : doc三山IDD Certificate : 123abc456 Marked : True Owner : ich三山 Usage Terms : usageterms Web Statement : xxx Image Width : 4608 Image Height : 3072 Encoding Process : Baseline DCT, Huffman coding Bits Per Sample : 8 Color Components : 3 Y Cb Cr Sub Sampling : YCbCr4:2:2 (2 1) Aperture : 9.0 Blue Balance : 2 Image Size : 4608x3072 Megapixels : 14.2 Preview Image : (Binary data 486590 bytes, use -b option to extract) Red Balance : 1.953125 Scale Factor To 35 mm Equivalent: 2.0 Shutter Speed : 1/640 Create Date : 2020:04:16 08:09:10.789+02:00 Date/Time Original : 2019:01:19 11:51:16.456+02:00 Modify Date : 2019:01:19 11:51:16.123+02:00 Thumbnail Image : (Binary data 4175 bytes, use -b option to extract) GPS Altitude : 578 m Above Sea Level GPS Date/Time : 2020:04:23 13:35:00Z GPS Latitude : 48 deg 12' 7.38" N GPS Longitude : 11 deg 53' 46.37" E Date/Time Created : 2020:01:02 11:12:13+02:00 Extender Status : Not attached GPS Latitude Ref : North GPS Longitude Ref : East Circle Of Confusion : 0.015 mm Depth Of Field : 0.017 m (1.247 - 1.263 m) Field Of View : 6.0 deg (0.13 m) Focal Length : 150.0 mm (35 mm equivalent: 300.5 mm) GPS Position : 48 deg 12' 7.38" N, 11 deg 53' 46.37" E Hyperfocal Distance : 166.67 m Lens ID : Olympus M.Zuiko Digital ED 40-150mm F4.0-5.6 R Light Value : 14.7 Maik
Hello Maik, Thanks to all for the investigations. Of course it was tagged with an older version of Exiftool. It was done about 1 year ago. But I never heard that I used a faulty Exiftool. In your output I see only IPTC-tags that are not displayed properly: e.g.: Keywords, By-line, By-line Title or Contact As said in earlier comments: I guess option -charset iptc=utf8 is missing in the command you used. As Gilles stated: IPTC:CodedCharacterSet is missing But this tag is only recommended and not mandatory. So in this case -charset for iptc is necessary. But I can only guess, because I do not know the Exiftool command you used. Thanks again herb
>I guess option -charset iptc=utf8 is missing in the command you used. This will work in your case as you know that your IPTC is UFT8 encoded. But it's not so far universal. IPTC can be encoded with other encoding. This si why there is a tag dedicated to identify the encoding for this container. What's happen if another image is not encoded as UTF8 in IPTC. The decoding will be broken if we force UTF8 with ExifTool argument. This is why IPTC encoding tag is highly recommended. It's identify which encoding is used in one image. This is what we call interoperability. Gilles Caulier
(In reply to caulier.gilles from comment #20) > >I guess option -charset iptc=utf8 is missing in the command you used. > > This will work in your case as you know that your IPTC is UFT8 encoded. > > But it's not so far universal. IPTC can be encoded with other encoding. This > si why there is a tag dedicated to identify the encoding for this container. > > What's happen if another image is not encoded as UTF8 in IPTC. The decoding > will be broken if we force UTF8 with ExifTool argument. > > This is why IPTC encoding tag is highly recommended. It's identify which > encoding is used in one image. This is what we call interoperability. Yes you are right. But: (1) Exiftool uses the following coding rule: (see FAQ 10): The value of the IPTC:CodedCharacterSet tag determines how the internal IPTC string values are interpreted. If CodedCharacterSet exists and has a value of "UTF8" (or "ESC % G") then string values are assumed to be stored as UTF‑8. Otherwise the internal IPTC encoding is assumed to be Windows Latin1 (cp1252), but this can be changed with "-charset iptc=CHARSET". For me it is better to start Exiftool with -charset iptc=utf8 than using the above mentioned rule. (2) In tab "IPTC" of metadata panel all tagsvalues are displayed properly; so Exiv2 must know that they are UTF8 encoded. Who gives this information? Does Exiv2 really support all possible encoding given in CodedCharacterSet? Best regards herb
Created attachment 139534 [details] attachment-19675-0.html Le dim. 20 juin 2021 à 09:43, herb <bugzilla_noreply@kde.org> a écrit : > https://bugs.kde.org/show_bug.cgi?id=438888 > > --- Comment #21 from herb <herb.k@web.de> --- > (In reply to caulier.gilles from comment #20) > > >I guess option -charset iptc=utf8 is missing in the command you used. > > > > This will work in your case as you know that your IPTC is UFT8 encoded. > > > > But it's not so far universal. IPTC can be encoded with other encoding. > This > > si why there is a tag dedicated to identify the encoding for this > container. > > > > What's happen if another image is not encoded as UTF8 in IPTC. The > decoding > > will be broken if we force UTF8 with ExifTool argument. > > > > This is why IPTC encoding tag is highly recommended. It's identify which > > encoding is used in one image. This is what we call interoperability. > > > Yes you are right. > But: > (1) Exiftool uses the following coding rule: (see FAQ 10): > The value of the IPTC:CodedCharacterSet tag determines how the internal > IPTC > string values are interpreted. If CodedCharacterSet exists and has a value > of > "UTF8" (or "ESC % G") then string values are assumed to be stored as UTF‑8. > Otherwise the internal IPTC encoding is assumed to be Windows Latin1 > (cp1252), > but this can be changed with "-charset iptc=CHARSET". > > For me it is better to start Exiftool with -charset iptc=utf8 than using > the > above mentioned rule. > > (2) In tab "IPTC" of metadata panel all tagsvalues are displayed properly; > so > Exiv2 must know that they are UTF8 encoded. Who gives this information? > Does Exiv2 really support all possible encoding given in CodedCharacterSet? > > I think the string encoding is determined by a content parser, if possible. But it's not guaranteed to work all the time... Gilles Caulier
Done: https://invent.kde.org/graphics/digikam/commit/18d023f114d3f8522854ee1de4a1416c636a05e3 Result: https://i.imgur.com/o2WLFI5.png
Windows build will be computed and published tonight at usual place. It will include this last change. Gilles Caulier
Screenshot under Window 7 of ExifTool view with a directory using German umlauts. Look also the IPTC char encoding which is displayed properly. https://i.imgur.com/Ehrk5gL.png Gilles Caulier
Git commit e8e843c74bd7443a17a642a4972da08bc2c48ee3 by Maik Qualmann. Committed on 21/06/2021 at 05:55. Pushed by mqualmann into branch 'master'. ExifTool use now UTF-8 file paths under Windows FIXED-IN: 7.3.0 M +0 -10 core/libs/metadataengine/exiftool/exiftoolparser_p.cpp https://invent.kde.org/graphics/digikam/commit/e8e843c74bd7443a17a642a4972da08bc2c48ee3