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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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Drawing photo from file to canvas rotates in Chrome based on EXIF

Chrome auto-rotates any image from a file input drawn to a canvas based on it's exif data. This is great, but iOS doesn't do the same. Is there a way to prevent this behavior in so I can just transform the image myself. With a fix I wrote it works…
Chase R Lewis
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Python EXIF can't find HEIC file date taken, but it's visible in other tools

This is similar to this question, except that the solution there doesn't work for me. Viewing a HEIC file in Windows Explorer, I can see several dates. The one that matches what I know is the date I took the photo is headed 'Date' and 'Date taken'.…
Cormac
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ImageMetadata change property is corrupted

I have a working application to change some of the metadata of my scanned images. This was working good, until we added a pre-process to automatically crop the borders of the images with GIMP console. We change multiple fields in the EXIF data, and…
Stinus
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ExifInterface doesn't update exif tags

I'm trying to change exif tags with ExifInterface. I use setAttribute() and call saveAttributes(). The tag is saved temporarily, then next time the old value is still there and hasn't been updated................ Example: ExifInterface exifInterface…
siamii
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EXIF data (from mobile's cameras, in portrait mode) messing with image preview in Javascript

I started with this code which allows the user to preview the uploaded image in the browser: 'use strict'; var img = document.querySelector('img'); var span =…
Piyin
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What is the best way to geotag jpeg-images with python?

I have coordinates from some source and want to tag my jpg files with them. What is the best python library for writing geotags into exif data?
Frank Bannister
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How can I identify the images with 'Possibly corrupt EXIF data'

I am working on a image classification Kaggle competition and download some training images from Kaggle.com. Then I am using transfer learning with ResNet50 to work on these images, within Keras 2.0 and Tensorflow as background (and Python…
user3768495
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Make EXIF Tool Replace Original File

I'm using the EXIF Tool to Copy all the EXIF Tags using the following command exiftool -TagsFromFile file1 file2 But if a file named file2 already exists in the source folder, I need the EXIF Tool to replace it.Currently, it is renaming the file…
techno
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Javascript: How to convert exif date time data to timestamp?

In javascript, while using exif-js to extract metadata of an image file, I am getting date time format as 2017:03:09 14:49:21. The value in the DateTimeOriginal property is formatted as YYYY:MMY:DD HH:MM:SS. When I use var d = new Date(2017:03:09…
Manthan Sheth
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EXIF Data LensModel property

I'm using below jQuery plugin to retrieve EXIF data from images https://github.com/sanisoft/jQuery-fileExif/blob/master/jquery.exif.js However there is no code in this to retrieve lens model data. So I added the code 0xA434 : "LensModel", after…
Jordyn
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node.js create / modify Exif inside the JPEG

Is there a native Javascript module that allows creating / modifying EXIF and IPTC sections inside the JPEG file ? Note: I already have the Exif data of the image that I am receiving from iPhone along with the image. Since he image does not include…
Curious101
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Read & Write file tag in cocoa app OS X with swift or obj-c

Is there any way to read/write file tags without shell commands? Already tried NSFileManager and CGImageSource classes. No luck so far.
arsena
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How to remove EXIF data from image, but keep the orientation?

When I remove the EXIF data from a folder with images with the Windows properties-tool, the orientation (that was already manually changed), is lost. So when I want to place all this pictures on a website, they aren't displayed correctly. The…
Robin
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Adding big junks of custom data to jpg image file

I wonder if there is an obvious and elegant way to add additional data to a jpeg while keeping it readable for standard image viewers. More precisely I would like to embed a picture of the backside of a (scanned) photo into it. Old photos often have…
Angry Coder
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EXIF and thumbnails

I'm working on a photo viewer. In this context, I wrote a small class to be able to read and use some EXIF data, as e.g. image orientation. This class works well for reading. However, I want to add a new option to rotate photos. I want to rotate and…
Jean-Milost Reymond
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