3D - How a Stereo Image Pair Can Be Displayed
Apr 3, 2019 07:06:35 #
In the next post I will show three different ways to display a stereo pair of images in 3D - 1-anaglyph and free-viewing (2-parallel view and 3-cross eyed view).
Pro Con
Anaglyph Can be viewed at any size Requires anaglyph glasses (typically red/cyan)
High resolution Glasses slightly reduce image brightness
Extended viewing time Might have trouble resolving saturated red or cyan details
No eyestrain
Free- No glasses needed Cannot view an image more than 2½ inches wide
viewing Low resolution
Limited viewing time
Can cause eyestrain and fatigue
Each pair has been captured hand held using two exposures about two or more inches apart to provide a left and right eye perspective.
All three versions were prepared using StereoPhoto Viewer which is available free on-line.
If you are interested in 3D, please let us know which viewing method you prefer.
Pro Con
Anaglyph Can be viewed at any size Requires anaglyph glasses (typically red/cyan)
High resolution Glasses slightly reduce image brightness
Extended viewing time Might have trouble resolving saturated red or cyan details
No eyestrain
Free- No glasses needed Cannot view an image more than 2½ inches wide
viewing Low resolution
Limited viewing time
Can cause eyestrain and fatigue
Each pair has been captured hand held using two exposures about two or more inches apart to provide a left and right eye perspective.
All three versions were prepared using StereoPhoto Viewer which is available free on-line.
If you are interested in 3D, please let us know which viewing method you prefer.
Apr 3, 2019 07:09:16 #
Here is the same image pair displayed three ways.
You will need a pair of anaglyph glasses to view the first image in 3D. It can be viewed on your monitor at any size.
The next two images need to be reduced in size so that each is no more than 2½ inches wide.
The second image needs to be viewed so that your left eye concentrates on the left image and the right eye on the right image so that they merge into a single image.
To view the third image you will need to cross your eyes until the images overlap.
You will need a pair of anaglyph glasses to view the first image in 3D. It can be viewed on your monitor at any size.
The next two images need to be reduced in size so that each is no more than 2½ inches wide.
The second image needs to be viewed so that your left eye concentrates on the left image and the right eye on the right image so that they merge into a single image.
To view the third image you will need to cross your eyes until the images overlap.
Apr 3, 2019 07:12:49 #
A closeup example.
Apr 3, 2019 07:15:03 #
Thanks for posting something a little different Scotty. Still trying to determine my preference.
Are there a pair of Anaglyph glasses that are budget minded you would recommend off of Amazon?
Are there a pair of Anaglyph glasses that are budget minded you would recommend off of Amazon?
Apr 3, 2019 07:26:57 #
Haydon wrote:
Thanks for posting something a little different Scotty. Still trying to determine my preference.
Are there a pair of Anaglyph glasses that are budget minded you would recommend off of Amazon?
Are there a pair of Anaglyph glasses that are budget minded you would recommend off of Amazon?
There are several decent choices in the $5-$10 range at Amazon and Walmart that you should be able to get quickly.
Apr 3, 2019 07:42:59 #
I have 3-D glasses from the early to mid 50's I think....Got them free at the theatre too!!
I had problems with the first set, Anaglyph first photo of house by the water. The second set with the house plant just popped out at me. Little to dark for me, but I have tired old eyes too!
Thanks for posting, I enjoy the work that you put into taking the 3D shots and the views.
Dave
I had problems with the first set, Anaglyph first photo of house by the water. The second set with the house plant just popped out at me. Little to dark for me, but I have tired old eyes too!
Thanks for posting, I enjoy the work that you put into taking the 3D shots and the views.
Dave
Apr 3, 2019 08:43:18 #
SqBear wrote:
I have 3-D glasses from the early to mid 50's I think....Got them free at the theatre too!!
I had problems with the first set, Anaglyph first photo of house by the water. The second set with the house plant just popped out at me. Little to dark for me, but I have tired old eyes too!
Thanks for posting, I enjoy the work that you put into taking the 3D shots and the views.
Dave
I had problems with the first set, Anaglyph first photo of house by the water. The second set with the house plant just popped out at me. Little to dark for me, but I have tired old eyes too!
Thanks for posting, I enjoy the work that you put into taking the 3D shots and the views.
Dave
Films in the 50s were projected through Polaroid filters and the free glasses that were handed out were also Polaroid. That technique still works for projected images but not with an image displayed on your screen or printed.
Anaglyph relies on complementary colors with red/cyan being the most popular. Less common would be blue/yellow or green/magenta.
The nice thing about red/cyan is that greens and most other intermediate colors come through nicely.
Apr 3, 2019 08:58:35 #
selmslie wrote:
Con: Might have trouble resolving saturated red or cyan details
Here is where the red/cyan anaglyph gets into trouble unless you reduce the size of the image or back away from the screen.
On the other hand, the free view versions always need to be viewed at a reduced size.
A B&W anaglyph can be viewed at any size.
Apr 3, 2019 09:08:41 #
selmslie wrote:
... All three versions were prepared using StereoPhoto Viewer which is available free on-line. ...
I meant to say "StereoPhoto Maker".
You can read more about it and how to use it at StereoPhoto Maker. There are separate Windows and Mac versions.
Apr 4, 2019 11:26:10 #
Nice job! I have done a few stereo pairs but I always use the cross-eyed pairing. Over the years I've gotten to where viewing those is very easy. I think for viewing parallel pairs one would need a viewer (like an old stereopticon).
Apr 4, 2019 11:49:41 #
PGHphoto
Loc: Pittsburgh, PA
Haydon wrote:
Thanks for posting something a little different Scotty. Still trying to determine my preference.
Are there a pair of Anaglyph glasses that are budget minded you would recommend off of Amazon?
Are there a pair of Anaglyph glasses that are budget minded you would recommend off of Amazon?
ebay has them for under a $1 or if you want fancy under $2 with plastic frames https://www.ebay.com/p/Plasma-TV-Movie-Dimensional-Anaglyph-Framed-3d-Vision-Glasses-Red-Blue/875717975?iid=113644689410&chn=ps
Apr 4, 2019 12:33:27 #
PGHphoto wrote:
ebay has them for under a $1 or if you want fancy under $2 with plastic frames https://www.ebay.com/p/Plasma-TV-Movie-Dimensional-Anaglyph-Framed-3d-Vision-Glasses-Red-Blue/875717975?iid=113644689410&chn=ps
I got mine from for a bit more than that Amazon https://www.amazon.com/s?k=anaglyph+glasses&crid=3K67JNQR57PT2&sprefix=anaglyp%2Caps%2C143&ref=nb_sb_ss_i_1_7 but you can also get a set of fifty cardboard glasses for under $10 and two day delivery.
I also got a pair of the clip-on type but the clip didn't last.
Apr 4, 2019 12:48:40 #
David in Dallas wrote:
Nice job! I have done a few stereo pairs but I always use the cross-eyed pairing. Over the years I've gotten to where viewing those is very easy. I think for viewing parallel pairs one would need a viewer (like an old stereopticon).
Yes, parallel viewing really needs some way (like a Stereoscope) to optically isolate the two images. Of course, that means you also need to print the images at a size that fits the viewer. Cross eyed viewing also limits the size.
For the price of a pair of anaglyph glasses (see above) you can get around the size limitation.
Apr 4, 2019 12:57:00 #
selmslie wrote:
Yes, but there is degradation of the colors with that process.Yes, parallel viewing really needs some way (like a Stereoscope) to optically isolate the two images. Of course, that means you also need to print the images at a size that fits the viewer. Cross eyed viewing also limits the size.
For the price of a pair of anaglyph glasses (see above) you can get around the size limitation.
For the price of a pair of anaglyph glasses (see above) you can get around the size limitation.
Apr 4, 2019 13:00:30 #
David in Dallas wrote:
Yes, but there is degradation of the colors with that process.
Not all of the colors. Only saturated small red details. Green and nearly all other colors come through very well.
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