Step #1: The first thing that you need to do when hosting images on Blogger, is to Make a New Post.
Step #2: Add the image(s) that you need to host in your post.
Step #3: Change your Image to Original Size.
Step #4: Now you need to switch the the HTML Mode.
Step #5: Find the direct link to your image in your HTML.
So that’s it! Now you can just save your post as a Draft, you do NOT need to Post it :)
source: makincuteblogs