With repeated viewings of this image I realized that part of my fascination with it relates to a perceived receding of the background behind the subject...which I, of course, thought might be accentuated by 3D conversion.
With Don’s explicit permission I post the result of 3D conversion of his originally posted image.
STEREO IMAGE PAIR VIEWING TIPS
For those unaccustomed to viewing stereo image pairs, here are some of hints to successful viewing.
The images for parallel gaze viewing ought to be sized so their centers are spaced approx. 2 1/2” to 3” apart.
Depending on your device and display, you may find it easier to adjust image size with the downloaded version.
One easy way to get the parallel view ( marked as II )is to hold the edge of your hand or a stiff piece of cardboard vertically over the line between the images so each eye sees only its own image. Keep viewing straight ahead and the 3D image should appear between the two original images.
A different technique for parallel view :
Bring the images close so the line between the images is close to your nose so that the image is very blurred...out-of-focus. Then s-l-o-w-l-y move the images farther from your face until the middle image appears and is in 3D.
There is no particular size constraint for images arranged for crossed gaze viewing. The larger sized pair of crossed gaze images can easily be viewed on a computer monitor or larger display.
A quick way to get the crossed view (marked as X ) is to put your fingertip on the line between the images, then focus on your finger while moving your finger slowly closer to your nose. A third image will appear between the original two...and as it comes into full size and sharpness will be in 3D.
These all require a bit of repeated practice, but after they are learned, they are like swimming or bicycle riding...skills that you never lose!
Best regards,
Dave