Questions tagged [metadata]
Metadata is additional data related to a photo, this is usually written by the camera into the image file at the time of shooting but can be edited later. This metadata includes information such as the time and date of shooting, equipment involved and settings used.
539
questions
2
votes
2
answers
421
views
How can I find detailed Sony Exif codes in a format that I can use
Summary
Where can I find Exif codes of the type shown below that cover all features of my cameras?
(I have mainly Sony cameras but a more general resource would be welcome).
I have too many Sony ...
- 19.5k
2
votes
1
answer
44
views
Relationship between quad bayer sensor and the CMOS size
I have developed Python code to take an image produced by a DJI drone (and several other GNSS Cameras) and georeference the images. Basically the code reads the EXIF data from the individual images. ...
- 155
0
votes
2
answers
43
views
propritery SANYO metadata
How does an old SANYO camera store proprietary metadata on JPG that are not part of the Exif section? Like if the photo has the correct date or if it was taken using the hand or smile detection or ...
0
votes
0
answers
42
views
Set Date Created from filenames
I have around 4k photos and 1k videos that have no date in metadata because I switched my phones. All of them have the dates in the filenames in the format -
IMG/VID-YYYYMMDD-SerialNumber
I don't ...
- 1
0
votes
1
answer
76
views
Wrong EXIF data when uploading directly from camera
Given a webform where I can upload a photo I have two different outcomes.
1 When uploading a picture that was taken earlier, the EXIF data of the uploaded picture contains orientation "top left&...
- 1,223
2
votes
1
answer
128
views
IPTC vs XMP: how do they differ
I am quite confused by what IPTC and XMP are used for. I understand that EXIF is for technical information about the image, while IPTC is for actual metadata (with respect to the image, not the file), ...
- 282
0
votes
1
answer
47
views
Lightroom Classic v12.1 error: A change in Develope remove all Fujifilm metadata
Lightroom Classic v12.1 error: Any change in Develope removed all Fujifilm metadata (Exif tags) when saved.
When comparing a jpg file from my X-H2s camera by ExifTool, the following where missing ...
- 1
1
vote
2
answers
88
views
How can put 2 jpg images side by side in a new jpg without losing metadata or image quality?
I have lots of photos with writing on the back. I've scanned the fronts and backs into jpgs, and now I want to create a single jpg for each front/back pair. The front and back images should go side by ...
- 182
1
vote
2
answers
65
views
Why does Jhead with the -autorot option fail to fix my photos' orientation?
I have a lot of photos taken with an iPhone SE that are not displayed in the correct orientation when I view them using the Windows Photos app, XnView MP, or FastStone Image Viewer. I never modified ...
- 607
0
votes
0
answers
26
views
Are there software tools to help analyze EXIF metadata to help guide new lens choices? [duplicate]
I have a zoom lens (18-135mm on an APS-C body) and I am starting to look at options to upgrade to a different lens. I bought my camera and lens together and while I used a different lens (70-350mm) ...
- 113
0
votes
0
answers
46
views
How to group pictures based on various degrees of image similarity, for the purpose of fixing the pictures that contain incorrect or No metadata
Preface: ( 3 Actions that led to the problem)
I upgrade iPhones every other year and foolishly enabled “delete after backup” from both Amazon and Google photos. In some cases; both at the same time, ...
1
vote
0
answers
90
views
Where does Digikam store meta data for video files? [closed]
I use Digikam for photo and video management. It's set up to store metadata including tags, titles, and ratings in the files themselves. With photos, this works as expected. If I review the meta data ...
- 171
1
vote
1
answer
115
views
Is there an exif tag for face areas?
There is a SubjectArea tag in EXIF. Is there something equivalent for Faces?
https://www.cipa.jp/std/documents/e/DC-008-2012_E.pdf
https://www.cipa.jp/std/documents/e/DC-X008-Translation-2019-E.pdf
...
- 111
0
votes
0
answers
312
views
How can I change the "time taken" metadata for iPhone HEIC files?
I have some recent iPhone photos with timestamps in the wrong timezone. In Windows PowerShell, exiftool -s -a -G1 *.heic | select-string 'date|heic' | select-string -notmatch file produces this for ...
- 182
2
votes
4
answers
191
views
Can I assume the DateTimeOriginal of an image without an OffsetTimeOriginal is already in UTC?
I'm working on an application which will extract some EXIF information from images including when the image was taken. I see that some images provide a DateTimeOriginal but not an OffsetTimeOriginal.
...
- 123
1
vote
2
answers
111
views
Time zone camera clock was set for does not match GPS timezone
I have a bunch of photos I took with my DSLR. It does not have GPS, so I geo-tagged all the photos using GPS positions I captured on my phone. This part works fine. However, when I upload them to ...
- 771
2
votes
3
answers
163
views
Programatic way of aggregating focal length metadata across large collection of photos
I am looking to analyze my library of photos to see what focal lengths I use most often, to better inform lens purchasing decisions.
The recommendations I have been able to find online so far usually ...
- 23
1
vote
3
answers
435
views
Suspect photograph timestamp data has been altered
I received photographs over email from a client which I suspect were taken in 2022 but the client insists are from 2021.
I looked at the metadata, filenames, and date modified timestamps to look for ...
- 111
3
votes
0
answers
147
views
How do these modern multi-lens/multi-sensor smartphones work?
My last smartphone just had one front lens, so I could understand.
My current phone has three front lenses (and three sensors, too, I guess), so I was a bit surprised, that I had zero control over the ...
- 399
0
votes
1
answer
24
views
How to update XMP metadata in paired JPGs in Lightroom?
Background:
In my catalog, many photos that were imported as RAW+JPG.
Note that I obscure JPGs in Library View (the default) to simplify my workflow.
In order to export my Lightroom keywords, I have ...
- 113
0
votes
2
answers
104
views
Incorrect exif orientation on Canon 80D/60D when upside down/180 degrees?
The EXIF orientation tag can hold 8 values for the orientation of the camera. One of the tag values 3, indicating that the camera was turned 180 degrees, i.e. held upside down.
However when I take a ...
- 101
0
votes
2
answers
78
views
What's the best software for reading and writing image tags to and from image meta data fields?
I have millions of images that have had image tags assigned to them by various cv-api's my plan is to generate a data file, that will associate the image file names with the data captured so that I ...
2
votes
2
answers
417
views
Migrating away from Picasa - "Write faces to XMP" changes the hashes of images
I want to migrate from Picasa (to digiKam) and to export the face tags. I tried the experimental feature of writing faces to XMP, and noticed it changes the SHA256 hashes of the files, which I want to ...
- 21
0
votes
0
answers
52
views
Lightroom: read metadata of files based on a list containing full-paths-filenames
Is there a way in Lightroom to force update (read) metadata of image-files according to a list consisting of full-paths/filenames only?
That list contains the full paths to the files to be updated, ...
- 151
0
votes
1
answer
90
views
What is the term write time referring to?
Date time taken, and date time digitized are the same. Write time is one hour prior.
What does that mean?
Photo was analyzed on opanda.
- 21
0
votes
2
answers
163
views
Is there any photography website where I could find photos based on exposure time, focal length, ISO...?
I was wondering if there is a site where I could filter photos that were shot, for example, with a certain exposure time and few other conditions.
Is there any photography website where I could filter ...
- 105
6
votes
1
answer
2k
views
Where are Samsung's "Gallery" app's automatic "tags" stored and how can they be used downstream (i.e. in non-Android photo mgmt / dam software)?
Samsung's "Gallery" does a fantastic job at automatically / on its own assigning "tags" to photos, making it easy to find photos with certain keywords (e.g. "sunset" or &...
2
votes
2
answers
151
views
Copy DNG/XMP metadata
Years ago I scanned about 1000 negative photos. Now I have purchased a new negative scanner and rescanned all of my negatives.
Is there any way to copy metadata from the old DNG/XMP files to the new ...
- 21
0
votes
4
answers
281
views
How can I automatically add location from GPS log on my smartphone to SLR taken images?
What software is best for adding gps data to photos from gps log i run on my android device?
I want to do as little manual labor as possible preferrably software does it all for me.
Look at photo ...
- 197
0
votes
1
answer
71
views
Which tag to set in exiftool (for videos) in order to keep timestamps persistant for display on a (Android) mobile device? [closed]
I recently backed up pictures and videos from my Android mobile phone using GoodSync in order to keep the correct timestamps in Windows. However, I realised that a large amount of files didn't have ...
0
votes
1
answer
82
views
Preserving Recovered Images: What is stored in the "UserComment" EXIF tag?
Background
Hello, I was able to recover some images from a broken hard drive. Some of the images seem to have some binary data in the UserComment tag and I was wondering if it could be Lat/Long data?
...
- 101
1
vote
1
answer
185
views
What metadata fields are shown in the MacOS Preview Inspector TIFF tab?
If I view a jpg in the MacOS Preview app, I can use Tools>Show Inspector to bring up a More Info window. Its info tab (ⓘ) has four sub-tabs: General, Exif, IPTC, and TIFF. The General tab shows ...
- 182
0
votes
1
answer
394
views
How to calculate object position (lat, long) given exif GPS location of camera phone?
Probably this question was asked, but I couldn't find solution to my problem. I have an image with exif GPS location (which is position of the camera) as well as elevation above sea level. How can I ...
- 1
1
vote
1
answer
239
views
raw files don't contain EXIF but their JPEG do (Fujifilm X100S)
for many years I shoot with my Fujifilm X100S in both RAW+JPEG format. I just noticed that the RAW files don't contain any EXIF data, but their JPEG counterparties. (Don't know why, I should check the ...
- 115
0
votes
1
answer
963
views
set EXIF date from filename (uncommon formats)
I have a bunch of old photos that uses weird naming convention..like:
dd-mm-yy_HHMM
yyyy-mm-dd HH.MM.SS
yyyymmdd_HHMMSS
and no "Date taken" field on the EXIF infos. Also, creation date is ...
- 115
3
votes
3
answers
90
views
How should I store "description" metadata for maximum consistency, visibility, and portability?
I’m embarking on a project to scan our family’s old collection of slides. My plan had been to write descriptive information about each slide (e.g., when/where/why it was taken, who's in it, etc.) to ...
- 182
1
vote
0
answers
46
views
LG phone camera. How to interpret this EXIF User Comment metadata? "0 FM0 CR0 Prmid2 mxDrkA..."
What do the following numbers and abbreviations mean? Photos taken with LG phone cameras tend to have information like this in the "User Comment" metadata:
0 FM0 CR0 Prmid2 mxDrkA2.07 ...
2
votes
1
answer
1k
views
How does google photos get timezone and can I change it?
I started using google photos awhile ago to archive my vacation photos. Sometimes I want to change the order of the photos and would simply rename them BUT I also found google photos actually displays ...
- 121
1
vote
1
answer
140
views
Copying all photos with EXIF Rating >= 4 using ExifTool
I have used EXIF's Rating interval for ranking photos in my collection.
My photo collection is organized in directories in the form YYYY/YYYY-MM-DD Description/Filename.jpg, e.g. 2020/2020-12-31 New ...
- 113
0
votes
2
answers
245
views
What is the best way to align several sets of photos metadata?
For reasons, I do not know or understand, our wedding photographers photos don't have the correct data in the EXIF data. I guess this could have been due to editing, I don't really know.
They used ...
- 101
1
vote
2
answers
130
views
Should I fix an image orientation when creating a thumbnail?
I am a programmer, and I made an app for sharing images. I will not say the app's name because this is a genuine question, not a way to promote the app.
People are starting to use my app, and I have ...
- 203
2
votes
1
answer
541
views
In LightRoom Classic how can I filter all photos which are part of a stack, but not on top of a stack?
For use in other tools I want to write in Lightroom Classic to a photo's keywords if a photo is part of a stack, but not on top of a stack.
For this the easiest would be to create filter which shows ...
- 471
0
votes
1
answer
203
views
Jpg thumbnail showing larger than the original picture
I recently downloaded a picture from LinkedIn, and something really weird happens with it. Let me just state before that I can't show you the author asked me don't show it.
So, if I do "read ...
- 3
0
votes
1
answer
65
views
How to add "HDR" to EXIF in Lightroom Classic?
Is there a way to add the fact that an image was crated using HDR to a photo's EXIF data in Lightroom Classic?
- 153
1
vote
0
answers
114
views
Change EXIF format in Lightroom Classic
I noticed Lightroom Classic outputs the Exposure Time in the EXIF data as 0.0025 instead of 1/400. Is there anyway I can change the format?
- 153
1
vote
1
answer
392
views
Is there a way to know which camera captured images?
I am a medical researcher, doing research on some medical images. I have some JPEG images, and for a study, I need to include the information on the camera type used to capture those images.
Is that ...
- 173
1
vote
1
answer
204
views
Corrupted Date Taken
Some of my older images are showing Date Taken later than the actual date that the camera took the image.
The EXIF data shows the correct Date Taken in the field APP12::PictureInfo\TimeDate\...
- 41
1
vote
2
answers
1k
views
ExifTool does not extract corrupted EXIF metadata from jpeg file. How to repair it?
The image viewer nomacs offers a quick way to add image notes via Exif.Image.ImageDescription metadata.
After having edited the form for my-image.jpg, I can see this property in nomacs and Thunar (...
- 43
2
votes
3
answers
219
views
What's the best format for pictures in order to have the most metadata?
Working with a smartphone, I've seen that JPEG shows a lot of information in the EXIF, where PNG not as much. However JPEG does some compression on the image which I'd like to avoid if not necessary ...
0
votes
3
answers
203
views
How can I infer parameters such as distance from metadata?
Is it possible and how can I infer a parameter like the distance or the illumination from the chart, by looking at the metadata of the picture ?
To give some context, I am working on a chart with ...
Hot Network Questions
- What would be an example of something digital which isn't electronic?
- Using a foreign passport in the UK as a British citizen
- Entering Bulgaria with multiple entry Romanian tourist visa
- Detection the age of fossils using the carbon dating method
- What exactly are Avoid Notes?
- Can we understand from basic QED, why is the photon electrically neutral?
- Are a Hilbert space's dimensions physical?
- Why the passive "are described" is not grammatically correct in this sentence
- Meaning of "danach" in the following context
- What is the meaning of "SGD scales the gradient uniformly in all directions"?
- What is the best method to compute crystal structures?
- How to understand John 1:1 in light of Hebrews 7:3?
- Lego Mindstorms EV3 broken screen cable
- Adjective to describe a 'hurtful kind of art/music'
- What criteria should a cyclist consider when shopping for a car, partly to transport bikes to trails?
- How to read copy protected Apple II floppies / NIB images
- Three preprints and one manuscript of Tamura on power semigroups
- Would it be constitutional in the US to have age limits for SCOTUS justices?
- Ideal Transformer Model Confusion
- Creating Live USB for both 22.04 and 23.04
- Did Socrates' actual apology resemble Plato's Apology?
- Vertical ellipsis in circuitikz
- Does shield surfing on rails lower shield durability?
- What does the sentence "it's only dying a bit later than I would have, because I'm never going over to the Dark Side!" mean, especially its last part?