Forum : Mobile Photosynth

Share tips for making and sharing amazing panoramas from your phone.


Topic: How you save a Synth to desktop for image retouching then publish back?

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rhormigo (6 months ago)
How you save a Synth to desktop for image retouching then publish back? No really editing, just simple contrast or redeye corrections.
I see in my phone camera roll directory a jpg with full distorted panorama, but it is independent of what is shown in the phone library. 
Thank you.
TechnoGypsie (5 months ago)
The easiest way is to work on the source images.  Use Lightroom, Aperature or Digikam to apply adjustments made to 1 typical image to all images and then stitch them for panoramas.  Working on on images that have been saved as jpg's can quickly degrade image quality through generation loss.  Always start with source RAW images and export to 16bit TIFF and then stitch. :) (this works for HDR panoramas too. :)
TechnoGypsie (5 months ago)
You would have to cut and crop the image with overlapping sections and restitch... It works... But it tedious... This method can be used to fill in the last section in the sky... If it is missing... :)
Nathanael (3 months ago)
@rhormigo, from what I can tell, you're asking only about mobile panoramas - not photosynths.

You are correct about the flattened panorama being separate from the interactive panorama in Photosynth's mobile app. 

The interactive panoramas visible in the app's library are stored in a cube map format. 
All this means is that  the panorama is originally stitched onto the surface of a sphere (since a good stitched panorama is one where the camera's lens did not change latitude, longitude, or altitude between shots - think of this the same way as not moving a piece of paper horizontally, vertically, or away from the glass of a scanner while trying to make a scan of that paper) and so as the camera's lens turns to look in all different directions, it pains the surface of the sphere.
Nathanael (3 months ago)
Since a cube is simpler geometry to render than a sphere, the surface of the sphere is then projected onto the surface of a cube so that all parts of the cube appear correct when viewed from the exact center of the cube (in other words, the textures projected onto the corners of the cube have been distorted to compensate for the corners being further away from the viewer's virtual camera than the center of each of the six faces of the cube).

For a full spherical panorama taken with Photosynth's mobile app, then, you would have six square JPGs which compose the panorama. 

In years past, if you wanted to edit the full resolution photos you were going to use in ICE to make a panorama on the Windows desktop to upload to Photosynth.net, you simply edited a copy of the source images prior to stitching them in ICE.

For the past 1,000+ days since Photosynth's mobile apps launched, we do not have access to the input thumbnails captured by the app.
Nathanael (3 months ago)
Back on the Windows desktop, you could also edit your panoramas in Adobe Photoshop (stitched into a PSD with either Microsoft ICE or Photoshop's own Photo Merge) and publish to Photosynth.net by using the Photoshop to Photosynth.net panorama publishing plugin on Windows http://bit.ly/pstops

In theory, you could take your flattened panorama from your camera roll, take it into Photoshop on Windows, and then use the plugin I just mentioned to upload it to Photosynth.net, but it isn't going to be very good resolution, simply because the current Photosynth mobile panorama app doesn't capture full resolution input photos http://bit.ly/psmpr (although this is scheduled to change later in 2014).
Nathanael (3 months ago)
@BronteAdams, Christoph Hausner is currently adding functionality to his SynthExport tool http://bit.ly/synthexport which should allow people to download the six sides of their panoramas from Photosynth.net as a Microsoft ICE project and stitch them on Windows. 

From there, we can use whatever image processing tools we would like to touch things up before uploading to Photosynth.net again via the Photoshop plugin which I linked to above.
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