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Old 12-04-2007, 05:00 PM
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sheeny (Al)
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Join Date: Jun 2005
Location: Oberon NSW
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Warping to Correct Panorama Errors

If you've ever played about with panoramic mosaics, you've probably found that if your tripod is off level or the camera is not square to the axis of the tripod than some undesirable distortions can creep in.

Attached is an example of a little panorama taken yesterday with the Oly C5060WZ. Three photos assembled with Panorama Maker and saved for the web in PS CS2. In the first image you'll see the undesirable slope of the waterfall ledges due to a combination of conical error (camera not square to tripod) and the tripod not being correctly leveled.

The second image is the same after warping the top left hand corner. The procedure in PS CS2 is:

Select, All
Edit, Transform, Warp

In this case all I did was stretch the top left hand corner vertically, and then move the top and left hand side handles up by a proportional amount.

It may be worth having a play about with Warping or other transforms if you find the end result of your pano mosaic is a bit less than desired.

Al.
Attached Thumbnails
Click for full-size image (Kalang-Panoweb.jpg)
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Click for full-size image (Kalang-Pano-Warpweb.jpg)
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