David Krooshof

Anaglyph Stereo Photos

Red/Cyan Anaglyph Stereo photos

Using antique viewers to view stereo photos is nice for prints, but I hardly ever print. I made a phone holder, which is nice. But recently I found out that it is really nice to make anaglyph images on an ipad, because that is independant of screen size, and depth of the image can be controlled.

I have yet to find softwat that can make a stereo effect deeper, pushing the background further away. What can be done, is to decide what items in the image are level with the screen, which sit in front, and which items sit behind it.

Working in anaglyph also allows to correct height of each of the images, which makes the files better for viewing in antique hardware as well as projectors way better. Here is a number of images, taken with various cameras.

You need RED/CYAN glasses to view these. Important: Not blue, not green, but CYAN.

  • The moon shines from behind the tree. In mono, this light seems to be in front of the branches, but in stereo, it is clearly behind it. The fresh leaves look like blossom in infrared. There is lens flair at the bottom looks like a top toy.
  • Four trees that look like they are blossoming, but these are young leaves that light up in the infrared that the moon reflected onto them. The grass they're in, looks as bright as snow. Some stars pierce through the faint clouds.
  • Two trees that look like they are blossoming, but these are young leaves that light up in the infrared that the moon reflected onto them. The grass they're in, looks as bright as snow. Some stars pierce through the faint clouds.
  • A path meanders ahead of us, between lush trees and undergrowth. Moonlight shines onto the path, about 10 meters ahead of us. It looks very inviting to go into.
  • A deep view into a forest with desertification: sand sided with trees. Some nature loving folks actually like that sand, because it houses various special species, like lizzards. I am opposed to cutting forest in the Netherlands, because we need the shade and the wet soil. The clouds look extra far away, because they drifted from left to right between the two pictures I took.
  • A blossoming three branch cracks the screen like it is broken. It also reminds me of my trail photos. Both leaves and flowers are lightly toned. One flower, low right, seems to sit in front of the screen.

Stereo images taken withmy IR camera. First three are taken at night at full moon. Notice the stars.

Dark Trails

I made a stereo video camera, but alas it got blind in one eye. So I bought a Kandao 3D action camera. It is nice, but it's eyes are too close together. Still, I was able to shoot dark trails with it, including of bats. Making trails of bats can only be down in an extremely narrow time window, comparable with shooting a nice sunset. The need to be flying shortly after sunset, and before it gets too dark, they should be close and the background needs to be light. But I managed. And of coarse, there are jackdaws.

  • Three jackdaws, a small crow, pass by closely. One from top to bottom, one from right to left, one from left to right at the bottom. We overlook the old Amsterdam city centre.
  • A few trees that move in the wind, and the roofs of old houses. We look up to them. In the background: Trails of tens of jackdaws, flying from right to left in unison. Closer to the front are some more straight trails. Meanwhile, a pair of them land in a frivolous curly fashion into the tree in the middle. Jackdaws form cuter pairs than any other bird, if you ask me.
  • We overlook the old Amsterdam city centre. A seagull passes from top right to middle left, into the sunset that happens on the left side of the image.
  • Trees border the left and right of the frame. Between that, tree bats flew. Two different species, with different flappy patterns. I stacked hundreds of video frames to show their fight patterns.
  • Three quarters of the image is trees, one quarter, upper right, is dark blue sky. A bat circled that corner of the image. This image is based on video, and I stacked about 120 frames video to show this as a trail.
  • We overlook the old Amsterdam city centre, onto the houses. To the right is a canal, going away from us, bending to the right. Some boats are parked in it. Several seagulls pass between the houses, level with the roofs. The follow the canal. One seagull enters the image from the top left.

I'm very happpy with that last one, eventhough the depth is not so tangible. The reason is that I never realized that when seaguls fly over the Amsterdam, they follow the canals.

Color

Anaglyph works in color too. The trick is that half the color information goes to one eye, the other half to the other eye. The brain sort of ads these up. It's odd how much the brain want to see color. You can project color components one after the other, like in color changing LEDs lamps and DLP projectors, or next to each other, devided over just three RGB pixels, or dissect them per eye.

  • A purple sky looks blue when seen through 3D anaglyph glasses. There are three trails of bats: two nice curves, one wiggly dotted line. Those were made by different species of bats.
  • A purple sky that looks blue in anaglyph. Three quarters of the image is trees, one quarter, upper right, is blue sky. A dark blue. A bat circled that corner of the image. This image is based on video, and I stacked about 120 frames video to show this as a trail.

The connected trails are serotinus (laatvlieger) and the dotted flappy one is a noctula (rossige vleermuis). The vage horizontaltrail is a bird, probably an owl.

  • You can see me in a mirror taking a photo of my friend Pelle seen on the back in that mirror, while there is a mirror visible in the mirror that shows his face. We liked how oxidized those mirror look. In 3D, you can see this with a certain depth to it.

Mirrors in Teylers Museum Haarlem