What are the important steps of image optimization?

9 Steps to Optimize Images for SEO

-Resize your images. Image size and file size are not the same thing
-Optimize image file names
-Use alt tags
-Optimize the image title
-Include captions
-Use unique images
-Ensure that your text complements the images
-Add image structured data

Name your images descriptively and in plain language. ...
Optimize your alt attributes carefully. ...
Choose your image dimensions and product angles wisely. ...
Reduce the file size of your images. ...
Choose the right file type.

Image optimization reduces image size, compressing images, and loading images ... The result is significant load savings, an improved user experience.

Images optimization can be done by defining the images with the help of proper alt text so that search engines crawl and index them for ranking.

Resize your images. Image size and file size are not the same thing
Optimize image file names
Use alt tags
Optimize the image title
Include captions

Image optimization is about reducing the file size of your images with sacrificing quality. When you optimize a image, do the following things:

Reduce your image size
Optimize your alt attributes carefully
Choose the right image type (Png, jpg, webp)
Include captions
Optimize the image title