How to fix non-ascii image filename on browser (1 post)

Hey all,

I have a website called tapchigiamcan.com which is converted from Joomla.

The problem is image filename in Vietnamese so it cannot read on browser. Here is the link:
https://tapchigiamcan.com/tu-khoa/dan-ong/

Here is the image URL:
https://tapchigiamcan.com/wp-content/uploads/2012/03/b%C3%A9o%20b%E1%BB%A5ng%20%E1%BB%9F%20nam%20gi%E1%BB%9Bi.jpeg

Because the image filename is “béo b?ng ? nam gi?i.jpg” so it’s bad for IE, Chrome or Firefox browser.

There are about 21000 posts with 45000 images so that I can’t change it manual.

I want:
– How to fix and display non-ascii image filename on the browser
– Change non-ascii image filename to ascii image filename to make sure it’s good for SEO.

I used the plugin “Rename Media” but it doesn’t resolve for this problem. Is there any plugin that can replace “image title” with “post tile” and do it once time (such as, re-generator)?

Please help me fix it or give me some advices. Thank you and I’m pleasure to donate for your helping.

Minh Trung,
[email protected]