metadata

I'd like to add a new tag ("LV95_original") to an image ( JPG, PNG or something else..) How can I add a custom EXIF tag to a image? This is what I've tried so far: using (var file = Image.FromFile(path)) { PropertyItem propItem = file.PropertyItems[0]; propItem.Type = 2; propItem.Value = System.Text.Encoding.UTF8.GetBytes(item.ToString() + "\0"); propItem.Len = propItem.Value.Length; file.SetPropertyItem(propItem); } This is what I've researched: Add custom attributes : This uses something different SetPropert : This updates a property, I need to add a new one Add EXIF info : This updates

I've looked at the Schema.org spec for opening hours, but it seems to fail to address two key items: 1) Localbusinesses that have multiple hours (ie 8-12, 1-5 with the hole in the middle being closed for lunch) 2) Days where the business is closed altogether. I can't find any examples of anyone else doing it on google, this is my code for just normal hours (9-5) and my GUESS for how to handle days that are closed. Can someone chime in on multiple hours and confirm my handling of closed days is correct? <time itemprop="openingHours" datetime="Mo 08:30-12:00"> <div style="font-weight:bold;width

Privacy concerns have lead me to believe I should scrub user uploaded images for any meta data. I know that JPEG have EXIF , but I'm not sure about PNG or GIF (both are able to be uploaded to my site from the public). Do these formats have meta data too, and how is it stored? What is the best way to remove it? I'm using PHP 5.29. Thanks The easiest way is to copy them to a new image with GD - you keep all the image info, but get rid of the metadata. You may try http://www.php.net/manual/en/imagick.stripimage.php $f = '16262403.jpg'; $i = new Imagick($f); $p = $i->getImageProperties(); var_dump

I was wondering if there is a simple way to store meta information about an sqlite-Database in that database. I am specifically thinking about a version number that lets you easily find out which version of a database layout you are using (So my code could check if the database structure is compatible without querying SELECT sql FROM sqlite_master WHERE type='table'; and comparing the result with a predefined schematic). To clarify: I am not interested in the version number of the sqlite software, but something akin to pythons __version__ variable that can be defined seperately for each python

I'm having a tough time figuring out how to go about sorting a list based on one of the key/value pairs in the data attribute. <ul> <li data="{name:'Foo', number: '1'}"> <h3>Foo</h3> </li> <li data="{name:'Bar', number: '2'}"> <h3>Bar</h3> </li> </ul> Here's the jQuery. I'm setting the metadata attr and accessing it. All of this works fine. jQuery.metadata.setType("attr", "data"); $(document).ready(function(){ // loop through each list item and get the metadata $('ul li').each(function () { console.log($(this).metadata()); // shows the following - Object {name="Foo", number="1"} }); )};

I need to store custom data with a file in file system (about 50 bytes with each file). I do not have any other storage to keep the data and can not create an extra file for this. These are my requirements I can not change it. I have found that this can be done using UserDefinedFileAttributeView class. What file systems support this feature? NTFS, FAT, any other file systems on Linux? Where the data is actually stored and how reliable is it? I have tested that custom attributes are supported by following file systems via UserDefinedFileAttributeView: NTFS, Ext4, ZFS. Other popular file systems

In writing some image processing routines in Matlab, I found that I don't know how to write metadata in to a newly processed and saved image. To keep it simple, my flow is as follows: image = imread('Base_Pic.jpg'); image_info = imfinfo('Base_Pic.jpg'); %Process image... %Update metadata... imwrite(image,'Updated_Image.jpg','JPEG','Quality',100); I basically want the newly processed image to have all the same metadata attributes as the original image, with a few fields updated of course. How can I append the image_info structure to the newly saved JPEG ? You have a (very) limited ability to do