Skip to content

September 6, 2006

26

Tutorial: Create Your Own Planets

by Dirk

There are those special moments in the life of a photographer that suddenly change your view on your hobby (or profession). Here are some of the more notable for me:

  • 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 on “How to create your own planets”

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

Here are two samples for you to get an idea:

Planet “San Michele, Venice”:
Planet San Michele

Planet “Manhattan NYC”:
Planet Manhattan (Generation II)

In this article I will share my experiences with this technique, scribble together some things I found out and I will add a couple of links to help you get more out of it.

Selecting a Panorama or Photo for Your Planet

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

  • Select a panorama photo or a cropped landscape photo (aspect ratio at least 2:1, which means the width should be at least two times the height).
  • The bottom area (bottom 25% or so) of the photo in most cases should have only very little detail (e.g. sand, asphalt, water). This area will later be in the middle of the picture and will also be distorted the most.
  • The upper area (upper 25%) should also have only little detail, most preferably just one color (e.g. blue sky, night sky etc.).
  • The left and the right border of the photo should neatly fit into each other (which is always the case for a stitched 360° panorama).
  • The horizon must be exactly horizontal, the left and right end of the photo will be joined together and if they are on different heights your planet will have a big crack in the surface (again this is no issue for 360° panoramas).

Simple Sample: Planet “San Francisco”

We have the easiest start when we start with a 360° panorama, so let’s take my Panorama shot of San Francisco taken from the Coit Tower:

San Francisco from Coit Tower

Step 1: Convert the photo into a square image

Use the Photo|Image Size menu item to change the image size into a large square. Uncheck ‘Constrain Proporties’ and set the “height” value to the same value as your “width” value. You will get a square image:

Tutorial Simple Step 2.jpg

Step 2: Rotate by 180° and apply the polar effect

Now rotate the photo by 180 degrees…

Tutorial Simple Step 3.jpg

… and apply the “Filter|Distort|Polar Coordinates” filter (choose the “Rectangular to Polar” setting). If you are a user of The Gimp the command is “Filters->Distorts->Polar Coords”.

Tutorial Simple Step 4.jpg

Well, as you can see that was already most of the magic:

Tutorial Simple Step 5.jpg

Step 3: Rotate and clean up

The rest is just a little digital darkroom work: Rotate the planet to your liking, filter contrast and colors, clean up the sky and the edges where left and right border of the image came together.

Tutorial Simple Step 6.jpg

Advanced Sample: Planet “Venice”

Most of my planets were created using panoramas, but for this second sample we will use the following photo from Venice which shows San Girgio Maggiore Island. Islands are especially good suited for planets because on the left and right edge you only have the horizon to stitch together. This photo fits all the aspects mentioned above.

Step A 1.jpg

Step 0: Cropping and Straightening

First we have to crop the image as needed and straighten it to make the horizon absolutely horizontal. Using the cropping tool of PhotoShop we can do both processes in one step:

First we must make sure that our crop window is parallel to the horizon. This image shows how you can do this:

Step 1.jpg

Choose the crop tool of PhotoShop and select a flat rectangular area of the photo. Move the cursor just outside of an edge of the marked area where the cursor changes into two arrows pointing left and up. Click the mouse button and you can rotate the cropped area.

By moving the top border to the horizon of the photo you can exactly inspect the rotation. Move and rotate the crop window until the top border and your horizon is parallel, but don’t activate the crop yet. Good. Now we have a selection that is horizontal.

Now we want to make sure the left and the right border of the image fit together. Using the same trick we now look for areas on the right and the left where the buildings have the same height:

step2.jpg

Move the right and left borders as desired. Then finally move the top and bottom border in order to have the waterline roughly in the middle of the cropped photo:

step3.jpg

Double click the image and you are ready for the transformation!

step 4.jpg

Step 1: Convert the photo into a square image

From here everything works like in the simple sample: Use the Photo|Image Size menu item to change the image size into a large square. Uncheck ‘Constrain Proporties’ and set the “height” value to the same value as your “width” value.

step 5.jpg

Step 2: Rotate by 180° and apply the polar effect

Now rotate the photo by 180 degrees and apply the “Filter|Distort|Polar Coordinates” filter (choose the “Rectangular to Polar” setting). If you are a user of The Gimp the command is “Filters->Distorts->Polar Coords”.

step 6.jpg

Step 3: Rotate and clean up

Again, the rest is just a little digital darkroom work. Here are the things I did with this image:

  • Use the copy-brush to hide the stitch borders
  • Rotate the photo to my liking
  • The usual photo editing of histograms curves, contrast and color

The final result could then look like this:

Planet "Venice IV"

Want more samples?!

Source Panorama Polar Panorama
Venice - San Michele
A Boat in the sun? Sunrise on Montauk Beach, Long Island
Manhattan and Statue of Liberty
Manhattan Night Panorama
Our living room... (Polar Panorama) Our living room... (360° Panorama)

More on my Make Your Own Planets photo set on flickr.

What’s next?

Want to do more with this technique? Here are some suggestions:

  • Upload your images to flickr and add them to the “Create your own planets” group
  • For some panoramas leaving away the 180° rotation creates nice images like this images shows:
    Waiting for the concert
    The source panorama (360°) can be seen here
  • Flickr user “Seb Przd” has experimented with other projections for his panoramas, this could be an interesting way to go on

    Software I use

    To create my panoramas I usually take the photos without a tripod and use AutoStitch (freeware) and PanoramaFactory (shareware $30) for the digital work.

    The Flexify filter module ($35) for Adobe PhotoShop creates polar panoramas on-the-fly and offers numerous projections for your photos.

    About the author

    Dirk Paessler is 37 and is hooked on photography since 20 years. Have a look at his photoblog. When he is not taking photos he works as the CEO of Paessler, a software company creating network monitoring software.

    Notes

    This article was initially published on the PhotoJoJo Newsletter.

About these ads
Read more from Uncategorized
26 Comments Post a comment
  1. sophie
    Mar 25 2011

    thank you for this! very interested in this technique so now will try as soon as i have time/ 360 shots. keep up the good work!

    Reply
  2. Wilson Silva
    Aug 18 2011

    It was working quite well until rotate the image 180º. In PS CS5 the option Filter>Distort is inactive. What is the way to unlock it? What I did wrong?
    Thnks

    Reply
    • Lesedi Mogale
      Sep 30 2011

      i also wana know.

      Reply
      • Lesedi Mogale
        Sep 30 2011

        unlock your layer

  3. Lesedi Mogale
    Sep 26 2011

    Hi,
    im having trouble using the distort function under the filters. whatelse can i do? it doesnt give it to me as an option

    Reply
    • ashley
      Oct 25 2012

      you have to flatten your image, first.

      Reply
  4. Cat
    Feb 26 2012

    I just love these, and here is the question- to make a pan photo, I stand in one place and spin around taking photos all around (360 degrees) and then stitch them and then start the
    process of sizing… I tried just one photo and of course the sides do not match up…

    Reply
    • Jim
      Mar 12 2012

      Try using Photoshop File>Automate>Photomerge
      and load two or more images you would like to use for your pan. Make sure your images overlap so to speak so photoshop knows what to do with them. also if taking pictures of people its best to use a Tripod and take 2 or 3 separate pans. go around once then do it again 2 more times. it sometimes cuts people in half.

      Reply
  5. birju patel
    Jun 7 2012

    nice i like

    Reply

Trackbacks & Pingbacks

  1. Mega tutoriales para photoshop, mas de 100! | WydBlog
  2. 10 Top 3 Listen | Themennetz
  3. graphicsresources.net
  4. From Panorama Planet Tutorial
  5. Little Big Planets – Roo Reynolds
  6. Panoramic Photography | McDowell Designs | where creativity comes from
  7. tutorial para planeta « stereomindbox
  8. PLANETA | karicentro
  9. Tutorials Get » Create Your Own Planets
  10. Tutorial para crear Planetas | nallenays
  11. Planeta | mdavilaf
  12. Planeta | Imagen Digital I
  13. Como crear tu propio planeta | jimenagomez
  14. Planeta | alicehc
  15. Planeta | Discalculia.
  16. mexico´s city heart | b. ortegao
  17. tutorial(crea tu planeta) | Andrea Davila

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Note: HTML is allowed. Your email address will never be published.

Subscribe to comments

Follow

Get every new post delivered to your Inbox.

%d bloggers like this: