I have hundreds of thousands of images in a set of about 50 folders, each of the folders has a varying number of subfolders. I'd like to extract certain pieces of metadata (latitude/longitude, data/time, camera model and serial number, maybe a few others) from all the images in those folders and their subfolders and export it in a table (CSV would be easiest), so that I can import the metadata into a database. I need to preserve at least 6 decimal places in the lat/long fields, the location data is important.
So I am looking for a piece of Windows software I can point at a folder and have it walk through that folder and all its subfolders, read the metadata, and export the metadata for each image on a line in a CSV file, like so:
Filepath,Filename,Lat,Long,CameraSerial C:\Images1\Folder1\,Image0001.jpg,42.00000002,-75.00000001,A0193498 C:\Images1\Folder2\,Image0001.jpg,42.00000112,-75.00000067,A0193498 C:\Images1\FolderZ\,Image0001.jpg,42.00000492,-75.00000099,A0193498
I've found Camera Bits Photo Mechanic, which does what I need, but I was hoping there was a free/open source solution. Most of the tools I've found that do batch EXIF metadata exporting do so by exporting a separate text file for each input JPG, which is not what I'm after, I need one table per folder (and its subfolders).