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How to View the Bicovi Art Images.

Crossed Viewing Method (this page).
General Factors Affecting Viewing
Image Presentation on the Web Pages
Test Image which can be used to try out the viewing procedure.
Alternate Viewing Methods (on another page).

Crossed Viewing

This website requires you to use a visual procedure to fuse two images into one.  The Crossed Viewing method is suggested as being the most versatile.  Three options are offered in a following section to assist you in mastering the technique.
    The image pair can be almost any size though larger is better.  You will want to be at least arm's length (2 feet (60 cm)) from the screen when you first try this viewing system.
    In the Test Image the central square will appear to be further away from you than the large square and have a faint "X" in the centre.  Try different sized images to find one best suited for your circumstances.

Crossed Simple (3926 bytes)

Crossed Pencil (3748 bytes) Crossed Masked (3703 bytes)
Simple Viewing
Start to cross your eyes.  At first, four images will appear with some overlap of the central two images.  Focus the eyes so the two central images overlap exactly and fuse into one Bicovi image.  Two outside images will still be seen.
Pencil Assisted Viewing
Focus on the computer screen and hold a pencil, pen tip (or fingertip) between your eyes and the screen.  As you keep your focus on the screen, you will see a double image of the pencil tip.  Move the pencil tip back and forth and up and down until each part of the pencil's double image is centred on each one of the doubled image on the screen.
    Now focus on the pencil tip.  A fused Bicovi image will appear behind the pencil tip with two other images on either side.
Masked Viewing
This where you mask out the part of the screen that you don't want to see.  Create this mask by:-
  1. holding your hands 1" (38 mm) apart. OR
  2. holding two playing cards with their bottom portions against a ruler and separated by 1" (38 mm).  OR
  3. using a Cardboard Mask.

    Hold the masking apparatus approximately 8" (150 mm) from your eyes.  Check the position of the mask by alternately looking through the opening with one eye then the other.  The left screen image should be seen by the right eye and the right image by the left eye.  No portion of the other image should be visible.  Move the masking apparatus back and forth till this is achieved.
    Now open both eyes and focus on the edge of the mask.  A single fused Bicovi image should be seen floating in the gap.

General Factors Affecting Viewing

    Maintain your view of the Bicovi image pair for at least 10 seconds.  The Bicovi images require that two different colours fuse into a third, intermediate, colour.  First attempts to fuse the colours will likely result either in a flickering or a slow drifting between the two colours presented to the eyes.  It takes time for the eyes to accommodate to their new circumstances.  They can also tire.  Relax the eyes between images.
    If the colours do not fuse, it may be that the one eye is too dominant.  This can be checked using the second image pair below the first.  For example, if the colour that shows up is always the one presented to the right eye, then an eye imbalance should be investigated.  This can be done by downloading the image and manipulating it in a 'Photo' or 'Paint' program to find a colour pair that will fuse.

Image Presentation

On pages that require image fusion, the first image needs to have JavaScript (Active Script) enabled on your browser.  The image size can then be changed by clicking on the [Larger]/[Smaller] buttons.  People have different screen sizes and resolutions affecting the image size.  Also, personal preference as a result of trial-and-error can affect the image size choice.
    If clicking on the [Larger]/[Smaller] buttons does not affect the image, then you can scroll down to find an appropriately sized image.  (If there do not seem to be extra images, try Reloading the page.)

    The demonstrations are not just one set of an image pair but in fact two sets.  The second set has the colours reversed left-to-right.  This is because everyone has a dominant eye (the one normally used to look through a microscope or a telescope).  Some colour pairs fuse more readily in one left-right combination than the other.

Test Image

If JavaScript (Active Script) is enabled, use the "Larger/Smaller" buttons on the image following to create a size appropriate for your screen size, resolution and/or personal preference.  Alternately, scroll down to find a suitably sized image.  (If there do not seem to be extra images, try Reloading the page.)




Bicovi Image



Bicovi Image



Bicovi Image


Bicovi Image




Bicovi Image


Bicovi Image

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