Image Optimization is a process to deliver high-quality images in right format, size and resolution to keep it in the possible smallest size. This is the way that let you to speed up your site and thus, improves page speed and generate leads by reducing unnecessary load.

Image Optimization is a function of lossy and loseless compression. Differences in image formats are due to the difference in how and which lossy and loseless algorithms are used to optimize the image.

Image optimization is also very important for us and any business

Some things to be considered

1. Alt Tag
2. Image File size
3. Image load fast
4. Image quality
5. Image titles for better SEO

Due to how our eyes work, images are great candidates for lossy compression. Image optimization is a function of lossy and lossless compression. Differences in image formats are due to the difference in how and which lossy and lossless algorithms are used to optimize the image.

Optimizing image covers the compressing of the image with high quality to minimize load time. also write descriptive alt tag for bots.

Image compression is a type of data compression applied to digital images, to reduce their cost for storage or transmission.

Image optimisation include following-
Add Alt tag
Add image name

Image optimization
 

In these process involves deliver the images with smallest possible file size maintain the quality if the image,in these methods saving the bytes and improve the performance of the website..

Optimizing images means saving bytes and improving performance for your website.Image optimization involves delivering the images with smallest size while maintaining visual quality.

In SEO, Image optimization is a function of lossy and lossless compression. Differences in image formats are due to the difference in how and which lossy and lossless algorithms are used to optimize the image.

REFERENCE: Most of the images were likely captured in a very high, print-ready quality. Some may have been resized to something more suitable for the Internet, but some aren’t. Most are not optimally compressed and contain extra data that serves no purpose for the user.

Image optimization
 

In this process deliver the image with the smallest file size and maintaining the visual quality in this process saving the image quality and improve the performance of the website

Image optimization includes conveying pictures with the littlest conceivable document measure while keeping up visual quality.

I agree with above comments

Thanks for sharing

Image optimization!!!
 

In these method you can reduce the file size of the image once you reduce the image size site is loading fast these will helpful to rank on google and other search engine..