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XnConvert: "Keep metadata" does not keep all metadata
Posted: Tue Mar 26, 2024 6:12 am
by sx090
Hi all,
I found that the option "Keep metadata" does not really keep all metadata.
I assume this might be known!?
The way I understand is: It only keeps "known" and common metadata entries.
But for example, I have Samsung smartphone pictures which do have an embedded "Depth Map" which is stripped.
Or I have PNG files generated by AI (Stable diffusion WebUI) which do have meta entries of the image generation - also removed.
Would it be possible to add a "Keep ALL metadata" entry which really does the following:
Pass through ALL metadata, no matter what entry it is?
Thank you very much for consideration!
Re: XnConvert: "Keep metadata" does not keep all metadata
Posted: Thu Mar 28, 2024 7:28 am
by xnview
could you send us a sample file? and the ouput?
Re: XnConvert: "Keep metadata" does not keep all metadata
Posted: Thu Mar 28, 2024 9:47 am
by sx090
Sure - two examples:
1. a PNG file generated by AI (stable diffusion) which does contain the generating prompt etc
https://www.dropbox.com/scl/fi/ic26k8o0 ... cetp1&dl=0
If you check using Exiftool, which really reads all Metadata entries (also custom ones, which are not known upfront), it shows:
Code: Select all
ExifTool Version Number : 12.74
File Name : 00000-4097173258.png
File Size : 1213 kB
Zone Identifier : Exists
File Modification Date/Time : 2024:03:28 10:32:58+01:00
File Access Date/Time : 2024:03:28 10:34:42+01:00
File Creation Date/Time : 2024:03:28 10:32:58+01:00
File Permissions : -rw-rw-rw-
File Type : PNG
File Type Extension : png
MIME Type : image/png
Image Width : 1024
Image Height : 1024
Bit Depth : 8
Color Type : RGB
Compression : Deflate/Inflate
Filter : Adaptive
Interlace : Noninterlaced
[b]Parameters : nice sports car.Steps: 25, Sampler: DPM++ 2M Karras, CFG scale: 4, Seed: 4097173258, Size: 1024x1024, Model hash: 0e5e80eff7, Model: xxxxxx-000004, ADetailer model: face_yolov8n.pt, ADetailer confidence: 0.3, ADetailer dilate erode: 4, ADetailer mask blur: 4, ADetailer denoising strength: 0.4, ADetailer inpaint only masked: True, ADetailer inpaint padding: 32, ADetailer version: 24.3.3, Version: v1.8.0[/b]
Image Size : 1024x1024
Megapixels : 1.0
Oldest Date Time : 2024:03:28 10:32:58
So you see the generating Parameters as entry here.
2. actually EVERY picture taken by my Samsung S23 in Portait mode contains a lot of custom samsung entries, like binary embeddings: The Depth Map as well as the full and ohter data...
https://www.dropbox.com/scl/fi/hhor2hbf ... 1cmcu&dl=0
I mean in general it's good that the "EmbeddedImage" (binary data 1.9MByte!!!) is removed, but if someone ticks "Keep original Data" I guess he/she wants to keep data no matter what - some of these entries could be very helpful in future.
My guess is:
There are probably further other examples where stuff is removed because XnConvert doesnt know about it.
Wouldnt it make sense to completely pass-through the whole original Metadata stream and not reduce it to entries "known" to XnConvert?
Thanks!
Re: XnConvert: "Keep metadata" does not keep all metadata
Posted: Thu Apr 04, 2024 11:32 am
by sx090
Hi
Have you had the time to look into it already?
Re: XnConvert: "Keep metadata" does not keep all metadata
Posted: Thu Apr 04, 2024 2:32 pm
by xnview
yes, for png it's fixed
Re: XnConvert: "Keep metadata" does not keep all metadata
Posted: Thu Apr 04, 2024 2:41 pm
by sx090
Oh, great News!!!
And for JPG you still look into it?
Or what do you think?
Re: XnConvert: "Keep metadata" does not keep all metadata
Posted: Fri Apr 05, 2024 6:24 am
by xnview
sx090 wrote: Thu Apr 04, 2024 2:41 pm
And for JPG you still look into it?
Or what do you think?
i need to check how these metadatas are saved
Re: XnConvert: "Keep metadata" does not keep all metadata
Posted: Fri Apr 05, 2024 6:46 am
by sx090
Alright, htank you so much Pierre. Just let me know please in case you found something
Re: XnConvert: "Keep metadata" does not keep all metadata
Posted: Fri Nov 22, 2024 10:30 pm
by reecess
Any solution to this in regards to jpg images?
I'm converting them to webP files and my captions disappear.
Re: XnConvert: "Keep metadata" does not keep all metadata
Posted: Sat Nov 23, 2024 7:35 am
by xnview
reecess wrote: Fri Nov 22, 2024 10:30 pm
I'm converting them to webP files and my captions disappear.
Please send input and output files
Re: XnConvert: "Keep metadata" does not keep all metadata
Posted: Tue Dec 31, 2024 2:57 am
by Tweedeldee
Hi ! I'm facing the same problem, converting from JPEG to JPEGXL : EXIF metadata are not kept.
Any workaround, or anything I could do from my side to help debugging ?
Example
Source file:
https://drive.google.com/file/d/1q_gVyG ... sp=sharing
Converted file:
https://drive.google.com/file/d/1XZdo7C ... sp=sharing
Code: Select all
C:\Tools\exiftool-13.10_64\exiftool.exe C:\Tools\exiftool-13.10_64\test
======== C:/Tools/exiftool-13.10_64/test/20240506_071231.jpg
ExifTool Version Number : 13.10
File Name : 20240506_071231.jpg
Directory : C:/Tools/exiftool-13.10_64/test
File Size : 2.8 MB
File Modification Date/Time : 2024:11:07 18:15:55-08:00
File Access Date/Time : 2024:12:30 18:50:12-08:00
File Creation Date/Time : 2024:12:30 18:50:12-08:00
File Permissions : -rw-rw-rw-
File Type : JPEG
File Type Extension : jpg
MIME Type : image/jpeg
Exif Byte Order : Little-endian (Intel, II)
Make : samsung
Camera Model Name : Galaxy S23 Ultra
Orientation : Rotate 90 CW
X Resolution : 72
Y Resolution : 72
Resolution Unit : inches
Software : S918WVLS2CXCN
Modify Date : 2024:05:06 07:12:31
Y Cb Cr Positioning : Centered
Exposure Time : 1/30
F Number : 2.4
Exposure Program : Program AE
ISO : 800
Exif Version : 0220
Date/Time Original : 2024:05:06 07:12:31
Create Date : 2024:05:06 07:12:31
Offset Time : -07:00
Offset Time Original : -07:00
Shutter Speed Value : 1
Aperture Value : 2.4
Exposure Compensation : 0
Max Aperture Value : 2.4
Metering Mode : Center-weighted average
Flash : No Flash
Focal Length : 7.9 mm
Sub Sec Time : 299
Sub Sec Time Original : 299
Sub Sec Time Digitized : 299
Flashpix Version : 0100
Color Space : Uncalibrated
Exif Image Width : 4000
Exif Image Height : 2252
Exposure Mode : Auto
White Balance : Auto
Digital Zoom Ratio : 3
Focal Length In 35mm Format : 69 mm
Scene Capture Type : Standard
Image Unique ID : L12XSPE01PM
GPS Latitude Ref : North
GPS Longitude Ref : West
GPS Altitude Ref : Above Sea Level
Compression : JPEG (old-style)
Thumbnail Offset : 996
Thumbnail Length : 42160
Profile CMM Type :
Profile Version : 4.3.0
Profile Class : Display Device Profile
Color Space Data : RGB
Profile Connection Space : XYZ
Profile Date Time : 2022:07:01 00:00:00
Profile File Signature : acsp
Primary Platform : Unknown (SEC)
CMM Flags : Not Embedded, Independent
Device Manufacturer : Unknown (SEC)
Device Model :
Device Attributes : Reflective, Glossy, Positive, Color
Rendering Intent : Perceptual
Connection Space Illuminant : 0.9642 1 0.82491
Profile Creator : Unknown (SEC)
Profile ID : 0
Profile Description : DCI-P3 D65 Gamut with sRGB Transfer
Profile Copyright : Copyright (c) 2022 Samsung Electronics Co., Ltd.
Media White Point : 0.9642 1 0.82491
Chromatic Adaptation : 1.04781 0.02289 -0.05013 0.02954 0.99048 -0.01704 -0.00923 0.01505 0.75214
Red Matrix Column : 0.51508 0.24117 -0.00105
Green Matrix Column : 0.29195 0.69223 0.04189
Blue Matrix Column : 0.15718 0.06659 0.78455
Red Tone Reproduction Curve : (Binary data 32 bytes, use -b option to extract)
Green Tone Reproduction Curve : (Binary data 32 bytes, use -b option to extract)
Blue Tone Reproduction Curve : (Binary data 32 bytes, use -b option to extract)
Image Width : 4000
Image Height : 2252
Encoding Process : Baseline DCT, Huffman coding
Bits Per Sample : 8
Color Components : 3
Y Cb Cr Sub Sampling : YCbCr4:2:0 (2 2)
Time Stamp : 2024:05:06 07:12:31.692-07:00
MCC Data : Canada (302)
Aperture : 2.4
Image Size : 4000x2252
Megapixels : 9.0
Scale Factor To 35 mm Equivalent: 8.7
Shutter Speed : 1/30
Create Date : 2024:05:06 07:12:31.299
Date/Time Original : 2024:05:06 07:12:31.299-07:00
Modify Date : 2024:05:06 07:12:31.299-07:00
Thumbnail Image : (Binary data 42160 bytes, use -b option to extract)
GPS Altitude : 46 m Above Sea Level
GPS Latitude : 49 deg 16' 44.52" N
GPS Longitude : 123 deg 6' 40.27" W
Circle Of Confusion : 0.003 mm
Field Of View : 29.2 deg
Focal Length : 7.9 mm (35 mm equivalent: 69.0 mm)
GPS Position : 49 deg 16' 44.52" N, 123 deg 6' 40.27" W
Hyperfocal Distance : 7.56 m
Light Value : 4.4
======== C:/Tools/exiftool-13.10_64/test/20240506_071231.jxl
ExifTool Version Number : 13.10
File Name : 20240506_071231.jxl
Directory : C:/Tools/exiftool-13.10_64/test
File Size : 1548 kB
File Modification Date/Time : 2024:11:07 18:15:55-08:00
File Access Date/Time : 2024:12:30 18:48:51-08:00
File Creation Date/Time : 2024:12:30 18:48:35-08:00
File Permissions : -rw-rw-rw-
File Type : JXL Codestream
File Type Extension : jxl
MIME Type : image/jxl
Image Width : 2252
Image Height : 4000
Image Size : 2252x4000
Megapixels : 9.0
Re: XnConvert: "Keep metadata" does not keep all metadata
Posted: Mon Jan 06, 2025 10:47 am
by xnview
Tweedeldee wrote: Tue Dec 31, 2024 2:57 am
Hi ! I'm facing the same problem, converting from JPEG to JPEGXL : EXIF metadata are not kept.
Any workaround, or anything I could do from my side to help debugging ?
It's fixed in next release
