Sometimes you many want your Character to generate images, but not reveal to the user what image description was used. This could be to avoid confusion or to create mystery or humor. If you toggle Hide Direct Image Descriptions, your Character will remove the Direct Image Descriptions when showing the response.
If your Character generates multiple Direct Image Descriptions, all will be removed from the text shown to the user.
The actual image description was "A futuristic-looking helmet that vaporizes your hair"