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I have millions of images that have had image tags assigned to them by various cv-api's my plan is to generate a data file, that will associate the image file names with the data captured so that I can then import the data and images into a windows desktop application for verification and modification when needed. When complete I need to be able to export the images and a modified data file.
Your learned thoughts and opinions are welcome.
ExifTool has been mentioned, another tool for this job is exiv2.
Phil Harvey's ExifTool seems to be the perfect choice for such a task.
This is the most comprehensive image tag reader (and manipulator), and it has perhaps the most complete catalog of the known tags on the web. It's free and open source.
It's a command-line tool, so it must be easy to integrate it into your script.
> exiftool -*date* DSC_0904.JPG File Modification Date/Time : 2022:08:04 11:44:00+10:00 File Access Date/Time : 2022:08:04 11:44:49+10:00 File Creation Date/Time : 2022:08:04 11:44:00+10:00 Modify Date : 2022:08:04 11:31:26 Date/Time Original : 2022:08:04 11:31:26 Create Date : 2022:08:04 11:31:26 Sony Date Time : 2022:08:04 11:31:26 Create Date : 2022:08:04 11:31:26.872780+10:00 Date/Time Original : 2022:08:04 11:31:26.872780+10:00 Modify Date : 2022:08:04 11:31:26.872780+10:00
exiftool -Time:All file.jpg, as that will display all Date/Time related tags in the file. Using a wild card will skip a few tags that have only Time in the name but not Date
