How to view the 3D Stereogram Hive Logo
Bring the stereogram image very close to the eyes (until it touches the nose). At this distance, your eyes cannot focus on the image. Now, slowly push the image away, while trying to keep your eyes out of focus. At some point, you will see the hidden Hive logo. Without moving the image, you can also try to get your eyes out of focus and slowly focus a bit until you see the logo.
You might be able to see the logo in high relief or low relief, it depends how good is your focus.