How to Optimize Images

We all know that search engines can't read or understand images, but sometimes you want to use an image in your content instead of a selection of text. So now, to make it the most effectively, we need to learn how to optimize images.
In this case, you can use Alt Image tags to ensure that search engines understand what the image is about. Search engines cannot accurately read images, so unless you explicitly tell the search engines what your images are about, those images provide no overall search engine optimization value to the content of your page. Although images are not necessarily search engine friendly, they are a vital part of visitor-friendly design. A vibrant, colorful, image based web site compels its visitors to stay longer and browse more pages. It can also increase visitor trust and lead to higher sale conversion rates.
As a general rule you should limit the use of images on your web pages; if you can say what you want to with text, you should. However, if you use images, you should also use Alt Image tags. An Alt Image tag is located within an tag, and its syntax is as follows: description of the image
The Alt Image tag is a textual replacement for an image. If for any reason an image can not be displayed, the Alt Image text appears in its place. It also appears when you position a mouse pointer over the image for a period of time.
Rather than just fill your Alt Image tags with lists of keywords or phrases, take the time to write a unique, relevant description of the image being described. Alt Image tags have been historically abused by spammers trying to stuff as many keywords or phrases into their web pages as they possibly can. Abuse of these tags can lead to a ranking penalty, so be careful when writing your descriptions. Do not repeat the same words over and over again, and never repeat the same Alt Image tag more than once unless the image itself is repeated.

In this short introduction, I hope that I can share with you the burden in optimizing images. Make us the most aspects to make your site friendly!