7
votes
What might be the reason I cannot see the date a photo was taken in its metadata?
Gmail doesn't strip data from files (just sent myself a photo from my phone, and all the Exif is there, including GPS data).
The "Share" function on smartphones may remove metadata for ...
- 20.6k
6
votes
Accepted
IPTC vs XMP: how do they differ
Poring over the Wikipedia entries:
What you call "IPTC" is really the "IPTC Information Interchange Model" defined by the "International Press Telecommunications Council"....
- 20.6k
5
votes
Accepted
How can I use ExifTool to prepend text to image files' descriptions?
An extension of the redirection feature allows strings involving tag
names to be used on the right hand side of the < symbol with the
syntax "'-DSTTAG<STR'", where tag names in STR are ...
- 4,760
4
votes
How to print GPS coordinates on face of photo with caption/comment?
You can achieve this in many ways. This one will use PowerShell, ExifTool and ImageMagick.
GPS extraction is very easy and has bunch of options when using ExifTool. For instance, this:
...
- 143
4
votes
How can I find detailed Sony Exif codes in a format that I can use
You can find the codes in the CIPA Exif v2.3 standard.
Sony tags are also listed in exiftool's documentation.
Exiv2 tool's documentation also list tags.
- 11.4k
3
votes
How can I determine if this image has been altered in any way?
If your concern is the metadata, not really, because it is easy to edit, unless there are discrepancies between some fields (but from what you show there is very little metadata to work with anyway).
...
- 20.6k
3
votes
How can I extract just the value of a tag without the name using exiftool?
The -T option will hide the tag name, so you get only the value (example with a different tag ImageDescription):
...
2
votes
Accepted
Why does Jhead with the -autorot option fail to fix my photos' orientation?
This is a case of everything working as intended, but having incorrect input (i.e., garbage in, garbage out).
Two images, the original and after running ...
- 32.3k
2
votes
Accepted
Relationship between quad bayer sensor and the CMOS size
There is small mistake with the size of the Bayer matrix. It is 2x2 cells so you should divide each dimension by 2, not by 4.
P.S. for information Fujifilm X-Trans matrix is different, it is 3x3 so if ...
- 11.4k
2
votes
propritery SANYO metadata
The Exif specification allows for manufacturer-specific data, stored as "MakerNote" data. I'm not quite sure what you mean by an invisible pixel, but there's no need to jump through strange ...
- 11.7k
2
votes
Accepted
How can put 2 jpg images side by side in a new jpg without losing metadata or image quality?
ImageMagick can do this:
magick front-side.jpg back-side.jpg +append result.jpg
result.jpg contains a copy of the metadata from ...
- 204
2
votes
Accepted
Which JPG has better quality? And which Exif Byte Order is better?
I don't think there's any perceivable difference.
Visually they seem identical, even at extreme zoom. There are some minor & unimportant differences in the metadata.
The dotted line here is where ...
- 23.1k
2
votes
How to print GPS coordinates on face of photo with caption/comment?
The feature you are looking for is called, "text overlay" or "metadata overlay." Many different programs that view, edit, or manage photos have this feature in one form or another. ...
- 253
2
votes
How can I find detailed Sony Exif codes in a format that I can use
Most of your data isn't Sony specific. The size (width/height/megapixel) is part of the JPEG data (not even the EXIF).
JPEG quality as defined by Sony (Extra Fine/Fine/Standard) is a combination of ...
- 20.6k
2
votes
Obtaining original creation data of photo
You can't. A digital photo is just a computer file – it doesn't intrinsically store its ultimate creation date anywhere.
Exif data is a nice feature of image files whereby useful metadata is stored ...
- 11.7k
1
vote
Obtaining original creation data of photo
Phones do store the metadata, otherwise their Gallery/Photos apps wouldn't really work. However, when you use phone apps to share the photo, the metadata is usually ripped out for privacy protection.
...
- 20.6k
1
vote
Image metadata contains Focal length and calibrated focal length but the values are different
The focal length is 8.8mm. Often this value is expressed in terms of the equivalent focal length lens that delivers the same angle of view when mounted on a 35mm full frame camera format 24mm height ...
- 38.7k
1
vote
Which JPG has better quality? And which Exif Byte Order is better?
Using ImageMagick you can compare the image data (see ImageMagick Image Similarity Comparison). Using a command such as
...
- 3,683
1
vote
How can put 2 jpg images side by side in a new jpg without losing metadata or image quality?
There several free image editors out there, such as Gimp, Krita and MyPaint. They are all capable of putting together two images side by side, but the actual actions will all be slightly different. ...
- 20.6k
1
vote
Why does Jhead with the -autorot option fail to fix my photos' orientation?
AFAIK (all my digital cameras and smartphones so far, but I don't know if the iPhones do it like everyone else) pictures out of the camera are encoded as the sensor got them (which means "...
- 20.6k
1
vote
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)?
TLDR: huge app, no easy way to explain how it works, let alone how to alter or export this data.
The Question
Looking at all the references you've added to the question I can only assume you've done ...
- 595
1
vote
Copy DNG/XMP metadata
This is already quite old, but maybe still useful for someone who finds it:
Most pragmatic solution i found for transferring edits from DNG to another DNG or the original proprietary RAWs (CR3, NEF, .....
- 11
1
vote
Is there a common subset of exif metadata tags for scanned photographs?
It really depends on why you are scanning photographs in the first place. I don't know your goals, and below is my solution for my, rather niche needs. Also, it is the solution of a person who likes ...
- 282
1
vote
Is GIMP allow to add or change geo-tag localization in Exif data? Is there any plugin for that?
Yes, you can edit the GPS metadata via Image>Metadata>Edit Metadata.
It works correctly,looks like is truncating the data, but it is not.
It changes the format of the data to DMS like( 106deg 5' ...
- 11
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