How to restict images from Indexing?

I tried not to index my images from Google using the tags for a website and it worked.
<meta Name="robots" content="noimageindex"> and <meta Name="googlebot" content="noimageindex">.

The above tags are not working for Blogspot. Any other way not to index the images from blog post.

Thanks in advance.

Hey Steve!
There will be link for the image, why don't you use a tag along with that link content="noindex". I hope this will work for you. Though never experience in blogspot.