I know this might seem like a very common question, but when I have searched for a solution it seems almost no one has this same problem, all that is discussed is how to hide pictures that no one should see, which is not my case.
I need to stop the media scanner from scanning several folders and subfolders for pictures, but still scan them for audio media. My case is that I have a lot of music albums in folders with album art in the same folder. So in the stock gallery app I get all this album art which is meaningless.
The following found 'solutions' would not work in my case:
to create a file named
.nomedia, since that would stop the music from being scanned.
to use the privacy mode (I have a Galaxy S5), since that would still display all this album art when I am in the privacy mode
to use some kind of file vault, since that would hide everything in the folder from every app (I guess)
to use another gallery app, since KitKat doesn't allow non-stock apps to modify the external SD card
I might consider rooting if that would enable non-stock app to modify the SD card, since I use ES File Explorer anyways.