Polar to Rectangular Filter

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I love it when a plan follows through — seamlessly.
Don’t you?

The Digital Scrapper Premier kit — Alphabet Soup by Christina Mortimer — includes a super-duper cute circular frame. (You can see the frame below.)

As soon as I saw it, I had grand plans to put the frame into action.
Then I thought — hey, this frame would look super-duper cute as a horizontal strip, too!

Too bad for me? Think again.
Photoshop Elements is packed full of power filters.
Check out this one for turning circles into horizontal lines.

Tutorial:This complete Digi Scrap Tutorial is available to our Digital Scrapper Premier Members. If you’re a member, please take a moment to log in, then just come back here and refresh this page.
Not a Premier Member? Find out more information here.

For Adobe Photoshop Version click here.

Step 1: Prepare a Blank Document

  • Create a new document (File > New > Blank File) that is 12×12 inches at 300 ppi.

Step 2: Add a Circle Frame

  • Open (File > Open) a circle shaped frame.
  • Press Ctrl A (Mac: Cmd A) to Select All.
  • Press Ctrl C (Mac: Cmd C) to copy the frame to your computer’s clipboard.
  • Press Ctrl V (Mac: Cmd V) to paste the frame from your computer’s clipboard into the center of your document.

Note: It is vital that the frame be in the very center of the document for this technique to work correctly.

This is frame03 from the September 2011 Digital Scrapper Premier kit,
Alphabet Soup by Christina Mortimer.

Step 3: Apply the Polar Coordinates Filter

  • In the Menu Bar, choose Filter > Distort > Polar Coordinates.

  • In the dialog box, choose the Polar to Rectangular radio button. Click OK.
    Note: You might not see anything in the Preview window of the dialog box.

Step 4: Transform the Height

  • Press Ctrl T (Mac: Cmd T) to get the Transform options.
  • In the Options Bar, uncheck Constrain Proportions.
  • Change the Height percentage to 50%. Depending on the frame, you may need to adjust the percentage.
  • Double click inside the bounding box to commit the changes.

Step 5: Save Your New Element

  • In the Layers panel, click on the Visibility icon of the Background layer to hide it.
  • Ctrl click (Mac: Cmd click) on the thumbnail of the rectangular strip layer to get a selection outline.
  • In the Menu Bar choose Image > Crop.
  • In the Menu Bar choose Select > Deselect.
  • Save as a PNG file (File > Save As) with a unique name in the same folder as the original frame.

Here are some more examples of circular frames turned into rectangular strips.

This is scallopframe3 from Digital Scrapper Premier November 2010
Christmas Past by Susan Bartolini.

This is frameblue from Digital Scrapper Premier September 2010
Menagerie by Peppermint Granberg.

This is SG Grunge Ring from Digital Scrapper Premier May 2010
Boys & Toys by Digital Scrapper Designs.

 

Want to go backward from Rectangular to Circular instead? Check out this tip of the week from October 2010.

Credits:
Tip: Polar to Rectangular Filter by Jen White
Software: Photoshop Elements 9.0
Frames:
Alphabet Soup by Christina Mortimer
Christmas Past by Susan Bartolini
Menagerie by Peppermint Granberg
Boys & Toys by Linda Sattgast

Download a PDF version of this “Polar to Rectangular Filter” tutorial.

Windows: Right click on the link and choose “Save Target As” or a similar command.
Mac: Click on the link to download the file.

Step 1: Prepare a Blank Document

  • Create a new document (File > New) that is 12×12 inches at 300 ppi.

Step 2: Add a Circle Frame

  • Open (File > Open) a circle shaped frame.
  • Press Ctrl A (Mac: Cmd A) to Select All.
  • Press Ctrl C (Mac: Cmd C) to copy the frame to your computer’s clipboard.
  • Press Ctrl V (Mac: Cmd V) to paste the frame from your computer’s clipboard into the center of your document.

Note: It is vital that the frame be in the very center of the document for this technique to work correctly.

This is frame03 from the September 2011 Digital Scrapper Premier kit,
Alphabet Soup by Christina Mortimer.

Step 3: Apply the Polar Coordinates Filter

  • In the Menu Bar, choose Filter > Distort > Polar Coordinates.

  • In the dialog box, choose the Polar to Rectangular radio button. Click OK.
    Note: You might not see anything in the Preview window of the dialog box.

Step 4: Transform the Height

  • Press Ctrl T (Mac: Cmd T) to get the Transform options.
  • In the Options Bar, change the Height percentage to 50%. Depending on the frame, you may need to adjust the percentage.
  • Double click inside the bounding box to commit the changes.

Step 5: Save Your New Element

  • In the Layers panel, click on the Visibility icon of the background layer to hide it.
  • In the Menu Bar, choose Image > Trim.
  • In the dialog box, choose Transparent Pixels. Also, all the Trim Away boxes should be checked.
  • Click OK.

  • Save (File > Save As) as a PNG file with a unique name in the same folder as the original frame.

Here are some more examples of circular frames turned into rectangular strips.

This is scallopframe3 from Digital Scrapper Premier November 2010
Christmas Past by Susan Bartolini.

This is frameblue from Digital Scrapper Premier September 2010
Menagerie by Peppermint Granberg.

This is SG Grunge Ring from Digital Scrapper Premier May 2010
Boys & Toys by Digital Scrapper Designs.

Want to go backward from Rectangular to Circular instead? Check out this tip of the week from October 2010.

Credits:
Tip: Polar to Rectangular Filter by Jen White
Software: Photoshop CS5
Frames:
Alphabet Soup by Christina Mortimer
Christmas Past by Susan Bartolini
Menagerie by Peppermint Granberg
Boys & Toys by Linda Sattgast

Download a PDF version of this “Polar to Rectangular Filter” tutorial.

Windows: Right click on the link and choose “Save Target As” or a similar command.
Mac: Click on the link to download the file.

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