Animals Critique ⇒ I need your opinions...

[uuglypher]

3D image pairs...Please compare effects of contrast

I am preparing educational handouts relating to a presentation and a workshop on
2D-to-3D conversion.

The handouts will be in B&W and I am particularly curious about the extent to which image contrast may affect the perceived 3D effect.

These three stereo triplets are presented for your comparison and comments.

For those unfamiliar with viewing stereo triplets:

View the left and middle images by parallel gaze, or ....
view the middle and right images by crossed gaze..
(Use whichever technique you find most comfortable.)

Note that the images used are my own and are not to be downloaded nor manipulated in any way without gaining my explicit permission.

Dave

[Matt Quinn]

Dave, With crossed gaze, high contrast is the best. Matt

[Psjunkie]

Sorry I can be of no help here....

[uuglypher]

Dave, With crossed gaze, high contrast is the best. Matt

Thank you, Matt,
I appreciate your looking and making comment re: my reason for posting.

Dave

[Duck]

Hey Dave, it seems I can cross my eyes easier than I can do the parallel gaze. The thing is, they both give me the same 3D results so I'm not sure what the technical differences are. Anyhow...

Both the medium and high contrast create easily readable effects, on screen, where you are presenting these. However, when it goes to print you have to realize that if you are using just a regular office printer it will automatically increase the contrast so you need to keep that contrast gain in mind when printing your handout. Then, if you opt to photocopy that handout, some copiers can increase contrast further. Some copiers will also decrease the black point causing a tonal shift in the print. My suggestion is to run a variety of samples through on a page, have them photocopied by the service you intend on using and viewing the results yourself. You may find that while the high contrast image here gives best results on screen it could potentially be too contrasty in print.

Hope this helps.

[St3v3M]

... I am preparing educational handouts relating to a presentation and a workshop on
2D-to-3D conversion. ...

If you don't mind, please tell us more about the class! S-