There are many different elements when comes to ranking. Everyone use images on their webpages to help tell their story or sell a product. So one of the most important aspects of optimizing an image is the name. It’s easier to read logo-Local-SEO.jpg rather than 120625.jpg. I also recommend using a hyphen, a short description of the image and a keyword that pertains to your business. Saving the image in the proper image file type is important too. When your site is indexed by a search engine they will be able to read the image file name. This way you will not lose out on a ranking opportunity.
Next week I will talk about Image Alt tags. I hope this helps.