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Questions tagged [exif]

Exchangeable image file format is a standard for storing metadata such as camera, lens, and geo information in JPEG and TIFF files

Exchangeable image file format is a standard for storing metadata from digital cameras.

The tags defined in the Exif standard cover a broad spectrum:

  • Date and time information.

  • Camera settings:e camera model and make, orientation (rotation), and ISO speed, metering mode

  • Lens settings: make and model, aperture, shutter speed, focal length

  • File settings: File format, color mode

  • A thumbnail for previewing the picture

  • Descriptions

  • Copyright information.

Like EXIF, also holds meta information in image files.

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Setting Android Photo EXIF Orientation

I have written an Android activity that captures a photo programatically. I want to save the image as a JPEG with the correct EXIF orientation data (just like the native Android Camera app does automatically). Here is the method for actually taking…
Joshua W
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How to parse EXIF Date Time data

I am writing a C# program that extracts the EXIF DateTimeOriginal field from a JPEG file, if that property is in the data, and I need to parse it into a DateTime value. The code I have is: BitmapFrame src = decoder.Frames[ 0 ]; if ( src.Metadata !=…
Tony Vitabile
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Exiftool to create OSX visible XMP metadata in PNG images

Around my image processing software I use exiftool to successfully shuffle around exif info from Cr2, TIFF, JPG files. The added tags, such as "keywords", are all visible in OSX (mountain lion) Finder, Preview and nicely indexed by Spotlight. For…
gdh
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IPTC Data Management Library

I've written a fairly extensive script which manages images. PHP imaging libraries strip meta data by default. So embedded data (like keywords, descriptions, author, etc) are gone. I've written a fairly extensive image management system, but sadly…
Orangeman555
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Android Create Custom Exif attributes for an image file

currently i am trying to add custom exif tag/data to an image file that is in photo album. I am able to modify the existing tags defined in ExifInterface class However, i want to store custom data, such as user id of my app user, but it seems there…
XyzNullPointer
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Conditional compiling in Android?

Is there any kind of conditional compiling for Android? I had to make my project for Android 3 (API 11) just because ExifInterface has almost no useful attributes in Android 2.3 (API 10), despite the fact that it appeared in API 5 (!!??). I don't…
Luis A. Florit
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Modified EXIF data doesn't save properly

After countless attempts and sieving through every SO answer + google result, it baffles me that working with EXIF on iOS is so frustrating. Below is working code with its results. [[self stillImageOutput]…
Sebastian Dwornik
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Android write EXIF GPS Latitude and Longitude onto JPEG failed

I would like to add GPS data such as longitude and latitude into the jpeg photo. The photo is captured by tabbing the card (NFC) In the logcat correct values can be displayed but these values cannot be written into the jpg photo file ! Below is my…
Jeff Bootsholz
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Read image IPTC data

I'm having some trouble with reading out the IPTC data of some images, the reason why I want to do this, is because my client has all the keywords already in the IPTC data and doesn't want to re-enter them on the site. So I created this simple…
woutr_be
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Is EXIF data stripped by iOS and/or Twitter on Tweets with images?

I'm trying to tweet an image from an iOS5 app with code like this: TWTweetComposeViewController *tweeter = [[TWTweetComposeViewController alloc] init]; [tweeter addImage:image]; I think my EXIF is being stripped out, but not sure if it is my fault,…
Kevin Hakanson
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add/pass (exif) thumbnail to CGImageDestinationRef

On CGImageDestinationRef Apple's reference it mentions that It can contain thumbnail images as well as properties for each image. The part with the properties works nice, by setting the properties parameter when adding a image to the…
alex-i
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Find where a picture is taken on Facebook?

Is it still possible to find the location information of pictures on facebook since FB doesn't keep the EXIF? Thanks
William Sham
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EXIF library for .NET 4.0 framework

I've searched on this topic but the only suitable threads I can find are dated 2008 hence my new question. I'm looking at developing a program using C# .Net 4.0 language. The aim of my program will be to extract EXIF information from jpegs…
thefragileomen
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CSS object-fit: cover does not work with JPEG img with EXIF orientation more 1

Can not understand what is wrong with my Angular app. I am making a little gallery of my Sumsung Galaxy photos. In order to have a nice design I use "object-fit: cover" css attribute. It works nice for the images with EXIF "orientation" property…
Ольга Залесковская
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How to read exif data of movies in Python?

I use exifread (installed with python3 -m pip install exifread) to read EXIF tags from photos. The same camera takes videos with extension .MOV and a Create Date EXIF field that I am able to view with exiftool (installed with brew install…
miguelmorin
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