Straighten out panoramic view

CR
Posted By
C_Richard_Chartrand
Apr 28, 2004
Views
634
Replies
5
Status
Closed
I took a panoramic view of our town 110 feet in the air on an aerial Fire Truck ladder. No tripod. I tried the new Panoramic stitch program in Photoshop CS and another stitch program I have. Neither one could handle 18 images. I now have the images beautifully lined up in 18 layers, however, the image is arched and I want to level the image. I tried using the "Transform" feature for perspective and distort and skew. Nothing worked. I’ve also tried using the stitch program doing sections, and that didn’t work either. Thanks for any help.
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JH
Jim_Hess
Apr 28, 2004
Do you have enough "border" area that you could just crop your image?
CR
C_Richard_Chartrand
Apr 28, 2004
No Jim, That’s not an option. It would be cropping too much out of the picture. It’s a 360 degree panorama.
CW
Colin_Walls
Apr 28, 2004
I think you have approached this from the wrong angle. If you have such imperfect matches, trying to join all 18 in one is fruitless. You should join 2 at a time and straighten them. The join the result in pairs and so forth.

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JS
John_Slate
Apr 28, 2004
If you mean the horizon is curved, take the entire flattened image, rotate 90 degrees, then filter>distort>shear and drag the vertical line in the shear dialog to counteract the bow in your horizon. Before you do the shear you might want to add some blank canvas left and right. After you’re done rotate back.

Edit: I have assumed that he has the 18 layers lined up to each other well. Doing this without stitching software is almost impossible due to image distortion caused by the lens. Stitching software warps adjacent shots so the line up to each other on the edges.
MV
Mathias_Vejerslev
Apr 29, 2004
I´d try a real pano stitcher, such as PTAssembler.

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