Why does Photoshop Photomerge reorder my 360° panorama images?
Asked 7/24/2014
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I shot a series of photos for a 360° panorama and added them to Photoshop Photomerge in the order I wanted them stitched. However, Photoshop starts the pano from a different frame—often one from the middle—so the subject I wanted centered ends up off to one side.
Why does Photomerge do this, and can I force it to use the file order I selected as the stitch order or starting point?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
12y ago
2 Answers
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Assuming you shot images out of order, the files in the list have to be in the order you want them to be stitched, so renaming the files, or adding them in order, (i.e., add all the images to the left, then your central one, then all the images to the right) are probably your only options.
You could also use a fuller-featured stitcher, such as Hugin (open source), which will allow you to reorder the images, as well as define the actual control points used, where the same features show on a pair of the member images.
If, however, there are not enough distinguishing characteristics for a stitcher to find and match (e.g., horizons and blue sky and nothing else), you may have issues trying to use a simpler stitcher like Photomerge or Microsoft ICE, that doesn't do manual definition of control points.
Originally by user27440. Source · Licensed CC BY-SA 4.0
user27440
12y ago
0
Generated from our catalog & community — verify before relying on it.
Photomerge does not reliably use the file list as a fixed stitch order. It analyzes the image content and tries to determine how frames overlap, then may reorder them based on what it thinks matches best.
If your images have ambiguous content—such as lots of sky, horizon, or other repeating/low-detail areas—Photoshop can get confused and choose an unexpected starting point.
What you can do:
- Make sure the files are named and added in the intended sequence.
- If needed, reorder by renaming so the sequence is obvious.
- For more control, use a stitching program that allows manual ordering and control points, such as Hugin.
If the scene lacks distinct features, simpler automatic stitchers like Photomerge may struggle no matter how you order the files. In that case, a manual-capable stitcher is usually the best solution.
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