How to update EXIF tags of a picture file in Ruby ?
Title says everything. ...
exif
Does Exif metadata always get stored just after the JFIF header?
In JPEG files, Does the exif metadata always gets stored as the first marker? Or it can be in between other markers? The following has a comment that "After the APP1 Marker area, the other JPEG Markers follows." http://www.media.mit.edu/pia/Research/deepview/exif.html Is it confirmed? Thanks ...
JpegBitmapEncoder.Save() throws exception when writing image with metadata to MemoryStream
I am trying to set up metadata on JPG image what does not have it. You can't use in-place writer (InPlaceBitmapMetadataWriter) in this case, cuz there is no place for metadata in image. If I use FileStream as output - everything works fine. But if I try to use MemoryStream as output - JpegBitmapEncoder.Save() throws an exception (Except...
C# Retrieve Canon Specific EXIF Data
I have wrote an app that reads the basic EXIF data from an image via the PropertyItems exposed in .Net's System.Drawing.Image class. However, I cannot retrieve Canon specific EXIF data via these properties. How does one read this information? I know it exist in the file as Photoshop reads it. ...
Database solutions for storing/searching EXIF data
I have thousands of photos on my site (each with a numeric PhotoID) and I have EXIF data (photos can have different EXIF tags as well). I want to be able to store the data effectively and search it. Some photos have more EXIF data than others, some have the same, so on.. Basically, I want to be able to query say 'Select all photos th...
How do I use IPTC/EXIF metadata to categorise photos?
Many photo viewing and editing applications allow you to examine and change EXIF and IPTC data in JPEG and other image files. For example, I can see things like shutter speed, aperture and orientation in the picture files that come off my Canon A430. There are many, many name/value pairs in all this metadata. But... What do I do if I...
Getting exposure values from iPhone camera
Exposure values from camera can be acquired when you take picture (without saving it to SavedPhotos). A light meter application on iPhone does this. What is the appropriate way to get these values? The aforementioned application does this on iPhone 3GS only, so I guess it may be somehow related to EXIF data which is populated with this...
iphone - UIImagePicker overwritting geotagging in photo - fixed in os4?
It is my understanding that currently if you use UIImagePicker to grab a photo, it passes back back a UIImage object which doesn't include any of the geotagging information. I was wondering if it's confirmed that in OS 4 this is fixed? Or any suggestions on where to go look to see if this is fixed? Thanks, Mark ...
Extracting exif header from image (J2ME)
I'm developing a J2ME app which includes a file browser. I need to display the thumbnails of the images in the folder. I tried resizing the images, but it won't work if the file is large. How can I get the thumbnail from the exif header of the image. Will be helpful if you could post a link or something where I can learn about it or down...
How to modify EXIF metadata for JPEG images using Coldfusion?
I am using Coldfusion to view images stored in the file system and I can READ the EXIF metadata of JPEGs, but I'd like to know if it is possible to modify this information and re-save the image. ...
calculate the distance between the place where I am taking photo and the object I am taking.
I can get the latitude and longitude where I am taking photo. I can also get the Exif information of the photo I took. I want to know how can I calculate the distance between the place I am taking photo and the object I am taking by above informations? give me some constructive opinions. thanks very much. ...
Safe image uploading with PHP
I want my site to have a feature for users to upload images, but I want to do it safely. Namely, I want to strip the EXIF data and any malicious code that could be in their image. I was thinking of a way to do this involving direct manipulation of the file, but it struck me, would it make more sense to just convert the image they provide...
How do i read EXIF data from an image without the use of external scripts in python?
How do i read EXIF data from an image without the use of external scripts in python? I don't want to use any prewritten scripts. Thanks! ...
Retrieving EXIF info and video informations from pictures/movies
Hello, is there a Java framework that will do the dirty work explained in title for me? Mainly I just need to retrieve images properties stored inside JPEGs: size EXIF geolocations shot properties and to retrieve movie files informations like: codec name duration resolution and so on I don't need to be able to show the picture o...
Obtaining photo 'stars' rating using PHP
I am trying to extract the photo 'stars' rating from .jpg files using php code. My intent is to show the highest rated images as part of a slideshow. I found that using the PHP_JPEG_Metadata_Toolkit_1.11 I am able to get the rating of the file if the rating is set from within Vista (Right click -> Properties -> Details -> Set rating by...
Parsing EXIF's "ExposureTime" using PHP
Re, One photo with exposure being 1/640 has the EXIF field of "ExposureTime" eq. "15625/10000000". I am not sure why some photos display this value in a readable format (e.g., "1/100"), but I need to convert this "15625" back to "1/640". How? :) Thanks. ...
Getting exposure values from camera on iPhone OS 4.0
Exposure values from camera can be acquired when you take picture (without saving it to SavedPhotos). A light meter application on iPhone does this, probably by using some private API. That application does it on iPhone 3GS only, so I guess it may be somehow related to EXIF data which is populated with this information when the image i...
How Can I read Lens and Creator Tool Data From EXIF by C#
from the photo I uploaded to Flickr: http://www.flickr.com/photos/onlyvc/4765160904/meta/ It can read the Lens and Creator Tool data from the image, but I can't find any information about these in EXIF 2.1 version. Does these two values are special written by Canon? If so, where I can read it? Thanks for any help ...
Get Exif information
Hello, In my application i need to get EXIF information. What libs are exist for working with EXIF data, withou libexif? Thank you ...
Get exif data with jhead
Hello, I need to get exif data in my C/gtk+ application. I use jhead for it. How can i get exif data with jehad. I try so: const char* file_name = ImageInfo.FileName; But file_name = NULL; Is anywhere samples in C/C++ how can i get exif data with jhead? Thank you. ...