License for image files

[rogers0]

Hi there,

I want to know the license of image files on your blog post:
https://www.backblaze.com/blog/reed-solomon/
Such as:
https://www.backblaze.com/blog/wp-content/uploads/2015/06/blog-rs-7.png

The reason is one of the image is used in a github project, which I'm trying to package to Debian.
It's required to confirm license of every file in the project before going into Debian.

Your blog post already claimed the source code is in MIT license. So I guess the image files are also in MIT license. Could you kindly help to confirm it? Thank you!

Cheers,
Roger