Images make content more interesting, relevant , engaging but also contribute to website SEO. Optimized, well tagged/named/described and resized images provide more context to website data and make it easier for the search engines to locate the website and rank higher than competition.
Increasing image SEO makes your webpage more attractive and increases ranking. Search engine crawlers provide higher ranks to images that are good in quality and positioned correctly. Improve your image SEO by learning more about the concept.