Hi, I want to store some metadata in images. My camera application gives me a bitmap, which I store in the storage (MediaStore) device. In addition to this, I want to add a few tags to the picture in its metadata. I think EXIF is a good way of doing this. But I couldn't find good references on how to do this. If there are some tools to ...
Is there a theoretical maximum to the amount of metadata (EXIF, etc) that can be incorporated in a JPEG file? I'd like to allocate a buffer that is assured to be sufficient to hold the metadata for any JPEG image without having to parse it myself. ...
Hi, I'm currently a bit stucked in exif. I extract the thumbnail from the JPEG using GDI+ with C#. I wanted to get it unscaled so I used 0 as parameters to ImageWidth and ImageHeight parameters in the GetThumbnailImage function of the Image class. I always get an image size of 160x120 but I assume there can be different sizes and that G...
Possible Duplicate: How do I add exif data to an image? I want to modify some information in exif data with PHP. I've googled around but no hope. There's function in PHP, exif_read_data. But it only reads not writes. Anybody knows how or walkaround? ...
Hello, I am using the exif.py library. After calling tags=exif.process_file(...) i want to retrieve the time the image was captured. so i continue with t =tags['Image DateTime'] if tags.has_key('Image DateTime') else time.time() now i want to store t in django's database. For that t must be in the form 2010-07-20 14:37:12 but app...
Hi, I want to calculate the Horizontal FOV (HFOV) of the image using the EXIF information of the image. (Images are taken from different cameras.) http://www.worldserver.com/turk/quicktimevr/calculators.html#EXIF http://www.ehow.com/how_6640554_calculate-field-camera-lens.html http://en.wikipedia.org/wiki/Angle_of_view All these are...
How to using gdi+ to write Exif info into a exist image file in C++ windows? I get a part of code in the following way, however I think most of the following code is not necessary: BOOL bRet = FALSE; CString cstrFormat = TransferImageFormatToString(eFormat); if ( !cstrFormat.IsEmpty() ) { CLSID clsid; int fd = _open(CSTRI...
I am trying to use steganography and exif to-gather can it be done ?? as in hide data in a file without destroying the exif image. thanks andy ...
I am working on with .net 2.0 compact framework on a pocket pc device and the camera doesn't automatically tag the image with GPS exif data (unlike iPhone). I have looked around for already existing open source libraries that i can use in order to write GPS Exif data to a JPEG image but i haven't come across much. I did find a few examp...
Hi, I have an HTML5 site. I want to do following thing: Walk through files in a folder Find all images Get exif file from images Analyze an exifs (on server) Correct bad exifs This is a best scenario, that it can be. I am conscious that 1st and 2second step is possibly done only by selecting this files by user. And 5th step is po...
I am using a library called EXIFextractor to extract metadata information from images. This lib in part is using System.Drawing.Imaging.PropertyItem to do all the hard work. Some of the data in PropertyItem, such as Image Details etcetera, are fetched as an ASCII-string stored in a byte[] according to the Microsoft documentation. My pr...
SORRY for once again... I am new to iphone programming. using google code iphone-exif, i can read/write images tags also i can add custom image tags. But, my problem is that how can see the updated data??? OR is there any way to save image with updated data?? I have used .jpg image from net, is in other resources folder. Here my code (...
Hi, I'd like to find a way to read AND write exif data of an image with Silverlight. I couldn't find any sample code or library doing this, so I don't know if it's even possible? Thanks Update : I need to write (edit or add if necessary) exif data and more precisely the "Software" tag. ...
I'm trying to extract EXIF information from images using jQuery. I've tried using a script I found here but I can't get it to read exif data from externally hosted image files. I've posted a simple example page here. The code is tiny so you can just view-source to see what I tried. Does anyone know either what I'm doing wrong or if the...
Is there any way to remove the EXIF data from a JPG using PHP? I have heard of PEL, but I'm hoping there's a simpler way. I am uploading images that will be displayed online and would like the EXIF data removed. Thanks! EDIT: I don't/can't install ImageMagick. ...
Hi All, I'm using AVFoundation to control the camera in my app and it's working perfectly... up til now. The images are saved into the library with no problems and all look perfect but when I then upload them to Facebook they're the wrong way round! This happens whether I upload them from within my app or from the Facebook app on my i...
Hi, In my PHP app, I am retrieving exif data from uploaded images. I am performing the PHP exif_read_data function on images but some throw the following error - [<a href='function.exif-read-data'>function.exif-read-data</a>]: Incorrect APP1 Exif Identifier Code I think that these images that have been processed through software afte...
Hi Ive searched everywhere and havnt managed to find an answer to this question so I thought Id ask it here. Im currently using the AVCaptureVideoDataOutput to and CaptureOutput to get frames from the camera in real time at 30fps. I have left the default settings of autoexposure and auto focus etc. I want to be able to query the camera...
Can anyone tell me how to use the UIImagePickerController (camera and album) delegates determine the image's orientation, rotate accordingly, and assign it to a UIImageView? ...
I am writing something to get at the information contained in an MPO multi-picture file produced by cameras such as the fuji 3D cameras. I have the proposed spec, which is obviously written to confuse, and is available from here: CIPA multi picture spec PDF and have navigated the normal exif parts and extracted the MFP information. Sec...