Hide an image on a post or page in Blogger is a fairly simple and quick process.

1. Log into your Blogger dashboard and go to Navbar Vertical > New Post and Page > New Page. Insert your Image.

2. When you insert the image, click on it, a floating bar will appear and on the right icon of configuration or change click.

3. In the field Alt text and Title text add "none".

This way, posts and pages will not display the image you don't want to see.