Hide images from page

Do not insert the images in the posts themselves.

You just have to upload the images in the media uploader when creating or editing the post.

The image must be shown on that screen in order to be used.

Uploading an image while editing your post creates an association in the db whereby WP sees the image as “attached” to the post.

This is the image the slider uses – not the one in the body of the post.