Originally Posted by EnzoS.
Thank you for your interest in my "other" problem. I did indeed post my question in the Galaxy Note 8.0 Q&A, Help & Troubleshooting thread as: "GN8 Gallery data eating up drive space" back on the 1st of March. I thought I was fairly clear on the description and I would appreciate it if you would check it out. I'd be more than happy if you had questions for me as I'm baffled by what's happening. Please read my post.
Ah, well we did not follow your past question... I found with my antivirus app, that I get over 350MB of cached images just with my mp3 ID3 tags having album art.
I found that if you install Xposed framework and add the Wanam Xposed module, you have he ability to disable caching of images. Since disabling, I get zero cache. As for clearing the cache, you will either add a cleaner app or replace your antivirus with one that has built in added utilities.
Though one thing about disabling cache, you will notice slower image redraws with any images that are stored on slow SD cards. I have 633x UHS-1 SD card installed, and do not find images having issues with delayed image redraws from SD.
Hope this helps.