What is image optimization ?

[prismatic_technology]

Use of the alt text and description attributes of the image. And you can use image sitemap also.

[Jeffreyhooft]

Image optimization is the basic steps for SEO campaign. Image optimization is one of the structure blocks of on page optimization. Images are a strong visual element of a webpage. The most important Image Optimization factors consist of the alt tag, title tag, image size, image name and image linking.

[braketech]

Images are important to websites.IMG tags can only have ALT elements. TITLE elements belong to A HREF tags. You can have both, but only ALT tags are believed to have any weight with search engines. They add value to the design, break up the text,Search engine spiders can’t read the text in images. The ALT tag is an attribute that allows you to add descriptive text which can be crawled by search engines. The purpose of the ALT tag is to describe the image. In SEO, the importance of the ALT tag ability to help your web page rank and if you choose to have images indexed, increase your exposure through image search.