One issue you need to consider is the subsequent management of images via the EDIT PRODUCT screen in the admin panel.
As you may know, when you elect to input a product manually, you get to the "images" section, and you can "browse" for an image, then select a SUB-folder in the images folder if you want to. (Via the dropdown selector on the right of the screen).
So... as long as you just go ONE sub-folder deep in your main images folder, you will always have the dropdown for all available directories, when you add/edit a product manually.
Easy Populate, as you may know, does NOT upload the actual image files.
It simply writes the relative image name, into the database, where it can later be called (by the PHP) in order to construct a valid <img src="xxx/xxx/xxx"> hyperlink that is sent to the browser.
YES... you CAN use easy Populate to indicate the subfolder names.
In v_products_image column, where you would normally just put the image name, you can show the sub-directory name too.
v_products_image
televisions/sony-kv1024.jpg
televisions/toshiba-re54.jpg
televisions/toshiba-rtt33.jpg
televisions/philipsvv466.jpg
radios/panasonic-vrt33.jpg
radios/technics-xx22.jpg
radios/roberts-pa33423.jpg