Avoid indexing contentassetfolder/Media Images

Hi,

I've just integrated our episerver site with Find (Episerver version : 8, Episerver Find version: 9.2) . I tried to index from admin mode (using the content indexing job).

I'm seeing that our contentassetsfolder/media images are also getting indexed to Episerver Find Index. Can you please let me know how I can avoid indexing images/content assets folders.

Thanks in advance.