David Allen  


Christmas 1948 by David Allen

January 2020 - Christmas 1948

January 2020 - David Allen

Original 1

January 2020 - David Allen

Original 2

January 2020 - David Allen

Original 3

About the Image(s)

This image was taken of our family (I’m holding the camera) on Christmas day in 1948. I wondered if I could convert it to 3D. Included is the depth map I made of the image using Photo Shop with 9 layers and a lot of time. For a depth map, black is far back and white is up front. I then used SPM’s depth map feature to generate the 2 images shown here for 3D. I could have made the second 3D image in Photo Shop a lot faster, but I wanted to make a lenticular 3D version and I needed 12 images. SPM also can make the 12 images for a lenticular 3D image using the depth map feature. The lenticular set of images needed a little fixing as the SPM depth map feature leaves various artifacts when processing.


This round’s discussion is now closed!
7 comments posted

Betty Drinkut   Betty Drinkut
Cool experiment, effective stereo.   Posted: 01/10/2020 10:54:20

Dr V G Mohanan Nair   Dr V G Mohanan Nair
Great 3D conversion. The image has nice 3D separation of the objects at different levels. The image is sharp. Nice to see young David.   Posted: 01/16/2020 12:42:18

Brian Davis   Brian Davis
I have always wondered if a stereo image can be created from a single shot. You have proved with that hat effective pairs can be produced. Could you please let me know the detailed technique as I would love to have a go.
Well done   Posted: 01/17/2020 08:21:50
David Allen   David Allen
Using Photoshop, I made a layer for each of the people, the left wall and the tree. Then I removed any image in the layers and filled the individual layer with various levels of black. The back wall was 100% black up to the front most person which I filled with almost white. Each other person and the tree was various levels darker as can be seen in the depth map (Original 3). I then lightened things like the branches and balls on the tree, peoples arms and faces and other things I wanted to have a little 3D affect. The left wall had to be blended from black to white to make it look like it was perpendicular to the back wall. After I had my depth map, I used the "Depth map" feature in SPM (under the Edit tab) to generate the L/R 3D image pair. I checked out the new 3D image and re-worked my depth map until I got what I thought looked good. If you want more details let me know.   Posted: 01/18/2020 00:04:22
Dr V G Mohanan Nair   Dr V G Mohanan Nair
Thank you for explaining about the depth map creation.   Posted: 01/22/2020 06:21:26

Nick Muskovac   Nick Muskovac
David, I can see that you have done a lot of work on this image.
I select people in Photoshop and make alpha channels and I know the work involved. I would like to try a depth map. Your end result is great; Nice 3d depth of field. I see you holding a camera. I was about your size in 1948, That also gives away my age!!   Posted: 01/22/2020 14:29:03

Steve Wessing   Steve Wessing
Excellent. I hardly notice the addition of your brother. If you enlarge the image while you're working on it, you can get better control of the depth on the faces and other difficult areas.   Posted: 01/31/2020 11:29:33