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.

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20
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17answers
31k views

How can I create a map with GPS data from EXIF?

I've been taking photos all over the country last year and now I want to create a map with all the places I've been. Luckily all my photos are geotagged which makes the whole process easier. The main ...
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2answers
88 views

How do I Include IPTC metadata for rights usage terms in a JPEG exported from Lightroom?

I have a metadata preset I created in Lightroom which I use to import JPG files from my camera. In this preset, I provide a text value for the "Rights Usage Terms" attribute in the metadata. ...
1
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1answer
60 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 ...
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2answers
1k views

How to determine film size from smartphone image exif data?

I took an image from my phone and got its exif data below. It was a samsung note 4, which uses a 35mm film size (24x36) with a 43.27 diagonal. But what I am trying to figure out is the sensor diagonal ...
4
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1answer
167 views

How to embed an ID in Pixel 3a EXIF data?

My wife and I both use Pixel3a phones so we are not always sure which one took which photo. Is it possible to embed some information into the exif data on one camera for use later as id. thanks
0
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1answer
71 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 ...
7
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2answers
9k views

Convert regular panoramic photo into google cardboard file

For a school assignment (innovative project) I want to create a sort-of infographic, but then in Google Cardboard. I've got a bunch of panoramic images (not created in Cardboard camera) but it doesn't ...
0
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1answer
31 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?
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2answers
304 views

How can I rename a large set of photos using their modified date?

My problem is a little bit different from the other that I've seen here. The thing is that I have for example: DSCF0001, DSCF0002 and so on, as filenames with modified dates 2020/01/01 , 2020/01/02 (...
61
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15answers
115k views

Is there a free program to (batch) change photo file's date to match EXIF?

I want to specify a directory and have the software find all the photos in the directory and its sub-directories, and if they contain EXIF date/time, it sets their filesystem timestamp to match the ...
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0answers
75 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?
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2answers
2k views

How do I find raw files corresponding to selected JPEGS

I shoot RAW + JPEG on fujifilm cameras and 90% of the time I'm fully content with my jpeg images but a few could use some editing. To save time I would like to cull my photos into three categories: ...
1
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1answer
1k views

Camera showing incorrect used focal length in EXIF data

Using a Canon 5D Mk2 with a 17-40mm f/4L lens. Everything seems to work just fine, except no matter how i shoot, the EXIF-data will show 40mm as the used focal length, even if I know the image is ...
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3answers
1k views

How to sort photos by time, while ignoring date?

I'm an ecologist working with trail camera data. I have about 1 million images taken over a period of several months from multiple cameras that I need to sort through for pictures of animals, but ...
1
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1answer
356 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 ...
1
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1answer
54 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\...
9
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3answers
1k views

How to efficiently stop metadata being in my photos?

For privacy reasons, I would like to ensure that any photos I publish do not have any metadata in them. At the moment, I'm deleting the EXIF data via copy-and-paste in Photoshop, which is a very ...
1
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2answers
132 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 (...
6
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3answers
10k views

Search large collection of images for exif tags without lightroom/aperture etc

Is there a way, possibly using exiftool, to quickly search an entire directory or disk of images for a certain exif/XMP/IPTC tag and maybe even give a summary of what the collection contains (...
4
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3answers
116 views

Windows-app to quickly enter iptc keywords

I have scanned thousands of slides. They have no metadata. Is there a windows application to quickly enter iptc keywords for each image? It should be keyboard-driven and have autocomplete suggesting ...
1
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2answers
713 views

Transfer EXIF data from Android to Windows

I have taken over 500 photos on my recent journey and I'd love to code a program that allows me to access the GPS location of every photo and, through GMaps API, show me where the photo was taken. ...
8
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2answers
3k views

How can I strip tags from a JPEG without removing the color profile?

For a while now I have used exiftool to strip away unnecessary metadata from jpg files (and to add copyright information) before uploading them: exiftool -all= image.jpg However, today I noticed ...
5
votes
1answer
536 views

Calculating EV of an image file using its exif data

I'm trying to calculate the EV (exposure value) for an image file based on its exif data. From the exposure value article at Wikipedia, I am using this formula for calculating EV: EV = EV100 + LOG(S/...
0
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3answers
97 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 ...
2
votes
3answers
113 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 ...
21
votes
8answers
5k views

Can digital cameras sign images to prove authenticity?

Beyond the metadata/EXIF/IPTC (which can be easily altered), is it possible to prove that an image is authentic? If this is not possible, how does a photojournalist prove the authenticity of an ...
0
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3answers
74 views

Cannot read GPS position from photo

I cannot get GPS position from this photo exiftool show: | 8) GPSInfo (SubDirectory) --> | - Tag 0x8825 (4 bytes, int32u[1]): | 007e: 00 00 15 fe ...
16
votes
4answers
5k views

How to check if a photo is edited (even basic edits like exposure and white balance)?

A competition I want to participate in demands that they want unedited photos. The submission should not even have basic edits like brightness, saturation, white balance etc They claim they'll check ...
4
votes
2answers
490 views

Is there a way to batch-edit metadata in the Mac OS Photos app?

I've starting using the Photos app built into Mac OS (El Capitan). I appreciate the great integration with iOS/iPhone and iCloud. However, I'm not seeing any features that will let me make significant ...
14
votes
6answers
5k views

What tool can visualize metadata from many photos on a Mac?

I have seen/heard about a PC/Unix (??) utility that goes through all your JPG/RAW pictures on your disk and shows you on a graph your most used lens, your most used zoom range, flash settings etc... ...
10
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7answers
15k views

What tools exist to remove metadata from photos?

Whenever I share my photographs, I also share lots of information that I do not want to pass on: specific camera model that the photo was taken with exposure time focal ratio ... How can I remove ...
0
votes
0answers
24 views

How to delete all metadata from all JPEG files in folder using ImageMagick? [duplicate]

I have many JPEG files in folder D:\folder. I want to delete all metadata from all JPEG files in this folder. I used ImageMagick. I made: magick mogrify -strip "D:\folder\*" Am I right?
-3
votes
3answers
77 views

Why do JPEG files contain metadata? [closed]

What is the benefit of storing metadata in JPEG files? What are the implications if a JPEG doesn't contain any metadata?
1
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1answer
127 views

Suggestions on how to create a printout for capturing metadata?

I'd like to print a collection of digital images in a way that would make it easy for someone to manually annotate metadata (people, locations and events). I've scanned a large number of old family ...
6
votes
2answers
183 views

Is there a standard convention for indicating precision in jpeg metadata timestamps?

Exif timestamps have a format of "YYYY:MM:DD HH:MM:SS", possibly with a timezone at the end. Is there a general convention for how to handle these timestamps when the known precision is less ...
2
votes
2answers
86 views

Metadata: UserComment, ImageDescription, Description; what's their purpose?

$ exiftool test.jpeg | grep 'This is' Image Description : This is the 'ImageDescription'. User Comment : This is the 'UserComment'. Description : ...
3
votes
2answers
339 views

Why shouldn't raw files be rotated?

When I attempt to rotate a CR2 file in Photo Viewer, a message appears: That didn't work, RAW files don't rotate. Select edit to rotate and save it as a different file type. There are many tips to ...
1
vote
1answer
86 views

How can I edit EXIF Data based on the filename?

I've moved all the photos from my phone to PC (something that I did multiple times along the years from multiple phones) and the date taken is different from the actual date or doesn't exist at all (...
2
votes
3answers
88 views

Should I care about duplicates with different metadata?

I'm in photo-backup-deduplication hell. Thousands of folders organised in a different way, backups of backups of backups. There's no easy way to know what's latest/more important. I'm using dupeGuru ...
1
vote
2answers
119 views

How to store the back of a photo in metadata?

I am scanning old family photos. Any suggestions/best practice for storing the information written on the back of photos? When it's a name or location, for example, there are metadata tags, but often ...
0
votes
2answers
631 views

Retrieving the original date of a .JPG

I know a similar question was posted here before - which I will provide a link for below - but despite that, the exiftool.exe in the thread could not really retrieve the original date. The file in ...
9
votes
5answers
2k views

How do I update Lightroom metadata after using ExifTool without wiping my edits?

I had to change the date/time of my photos to + 3.5 hours with ExifTool because Lightroom didn't allow me to input half an hour… I was using "exiftool -AllDates+=3.5" which is working nicely but ...
1
vote
1answer
101 views

Change EXIF and/or Creation date based on folder name

I have lots of photos with non-existent exif dates where the write date is not correct. The original dates disappeared during a hard drive replacement. But they are in folders with the correct date. ...
3
votes
1answer
145 views

Is there a common subset of exif metadata tags for scanned photographs?

I've recently been scanning a collection of photographs into jpeg files. I know how to use tools such as exiftool to examine and change metadata tags. But while I'm easily able to learn the technical ...
11
votes
2answers
14k views

Is "Date Taken" Exif data possible on .PNG file, and is it possible to copy "Date Modified" to "Date Taken"?

I want to change the Exif data for some .PNG files so that they have the "Date Taken" tag. Is it possible to use that tag on .PNG files? Is it possible to copy the "Date Modified" date to the "Date ...
9
votes
7answers
13k views

What photo editing software will keep tags (incl. face/people tags) with the file (EXIF/XMP)?

I am evaluating Photoshop Elements and Lightroom for my photos. I store my photos in the cloud (currently OneDrive) and on a website (currently SmugMug). At the end of every year I like to go ...
8
votes
2answers
19k views

How to add author and other properties to PNG files?

I am on Windows 7 and I can't find how to add the author or any other properties for a PNG file I created. The only thing I can modify is the shooting time which I don't need. Why is this so? You can ...
4
votes
1answer
939 views

Is it possible to edit metadata of images in a Mac OS Photos library?

I recently started using the Photos app built into the Apple Mac OS. I cannot find a way to edit the images' metadata except for Title, Description, and/or Keyword. And it seems that I can only do so ...
3
votes
3answers
10k views

How to extract depth information from JPEG files?

Some mobile phones support changing the depth of field using depth information calculated from dual cameras. If the depth information is stored in the jpg file, how can it be extracted?
1
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0answers
46 views

How to transfer Microsoft Photo Person tags to 'normal file tags'?

How to transfer Microsoft Photo Person tags to 'normal file tags'? For instance, I found a program called "TagThatPhoto" that has a video about MS Photo Gallery that says it can transfer ...

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