Aeolian Features

The purpose of the anaglyph I posted is not for anaglyph viewing, but is meant to disclose the horizontal disparities in the cloud details via the red and cyan fringing.

The annotated section has a measured horizontal disparity of approximately 9 pixels (compared to the background cloud). My visual system’s cognition recognizes this disparity, and clearly reveals to my brain that there is a perceptible difference in “real” depth between the two elements, even though the disparity was generated by cloud motion. If you are not experiencing this, then we will have to agree to disagree.

Perhaps another example is required. I will start with a single image arranged in a stereo pair. Viewing this pair fused reveals a totally flat view in my experience.

Identical views

A small area of this view has been shifted horizontally by 5 pixels. I can find it viewing the fused pair (cross or parallel). View full size. Can you find it?

small area shifted 5 pixels horizontally

Here’s the same area shifted 10 pixels. View full size. Can you find it?

small area shifted 10 pixels horizontally

Here’s the same area shifted 20 pixels. View full size. Can you find it?

small area shifted 20 pixels horizontally

Here’s the same area shifted 50 pixels. View full size. Can you find it? It should REALLY be obvious by now.

small area shifted 50 pixels

I notice the depth difference at shifts less than 5 pixels. How about you??