Create My own photo

May 10, 2012


How To Create A Simple Photo


screenshot1_thumb.jpgThere are special moments in the life of any photographer that suddenly change his view of his hobby (or profession). For me, those moments included:

  • Getting my first analog SLR (Nikon N2000/F301 in 1988)
  • Getting my first digital camera (Kodak DC120 in 1997)
  • Discovering a software that could stitch together photos into a seamless panorama (MGI PhotoVista 2.0 in 2002)
  • Discovering the rather simple instructions to create my own planet

To make a long story short: The “Polar Panorama Effect” is one of my favorite ways to process photos into unique pieces of art. It takes a panoramic (or landscape) photo and uses the Polar Coordinates filter of Photoshop CS or The Gimp to create a circular image that seems to wrap the panorama around a planet.

Two samples: Click either image to see it larger.

Looks cool, and it’s easy to do! Let’s get started.

Selecting a Source Photo for Your Planet

When selecting a photo to start with you should keep the following things in mind:

  • Panoramas or landscapes cropped to have an aspect ratio at least 2:1 (the width should be at least two times the height) work best. Wider photos are better.
  • The bottom area (bottom 25% or so) of your photo should have very little detail (e.g. sand, asphalt, water). This area will become the center of your planet and will be distorted the most.
  • The upper area (upper 25%) of your photo should also be light on detail– preferably just one color (e.g. blue sky, night sky etc.)
  • The left and the right edges of your photo should match, or come close to matching, each other. (Always the case for a stitched 360 degree panorama.)
  • The horizon must be exactly horizontal. Since the left and right edges of your photo will be joined, if they are at different heights your planet will have a big crack in the surface. (Again, a non-issue for a properly executed 360 degree panorama.)

We’re going to go through two examples: the first uses a simple panorama, the second a landscape shot that we’ll crop before proceeding.

Starting Simple: Planet San Francisco

Planet San Francisco, almost complete!It’s simplest to work with a 360 degree panorama, so let’s start with this panorama shot of San Francisco taken from the Coit Tower:

Step 1: Resize and Rotate

The first thing we need to do is prepare the image for the Polar filter. We do this by stretching the height of the image so that the image is a perfect square.

Select Image>Image Size from the menus. Uncheck ‘Constrain Proporties’ and set the “height” to the same value as your “width”. Next, rotate the image 180 degrees. (Image>Rotate Canvas>180)

You should end up with something like the image to the right.

Step 2: Apply the Polar Filter

Next, we’ll apply the Polar Filter to wrap our image into a sphere.

Choose Filter > Distort > Polar Coordinates from the menus and in the resulting dialog box, select the “Rectangular to Polar” setting.

(If you’re using The Gimp the command is Filters > Distorts > Polar Coords.)

As you can see we’re 90% of the way there!:

Easy cheesy, right? Now for some finishing touches…

Step 3: Rotate and clean up

The rest is just a little digital darkroom work: Rotate the planet to your liking, adjust the contrast and colors, clean up the sky and the edges where the left and right border of the image came together. (The clone stamp and healing brush may be handy here.) That’s it, we’re done!

screenshot5.jpg sangirgio.jpg
Source: content.photojojo.com

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