Image SEO is also part of On-Page SEO, where you get the image of your blog to rank in a search engine and get organic traffic.To make image SEO friendly, follow these 7 methods
Change the name of the image & write it according to the focus keyword.
Compressing the image size takes less time to load the image.
Alternative text Describe image correctly. Avoid Keyword Stuffing while writing Alt text.
Use image size 650X350 for a good SEO-friendly image.
For the blog, always use JPG or JPEG image format.PNG images spoil the website's loading speed.
Write the title and description of the image as described in the image and blog post.
Always use copyright free images in the blog. Pixabay,Unsplash,Pixel etc. are some website to download copyright free image.