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swami_worldtraveler replied on November 05, 2009 10:19 to the question "Why is photo cropping discouraged?" in Microsoft Live Labs:
Tnx Nathanael. This idea had cropped my mind, i mean, "croSSed" my mind, and I did consider that EXIF is better, but Photosynth can determine focal length/center sometimes. Would be interesting to do a test: synth some EXIF fotos, then synth the same fotos, but w/ EXIF removed (pretty sure I saw an app to strip the metadata). Hmmm, if I actually do this test I'll post the results. Would the forum be a better place for such?
Tnx, again , as always:)
InquisitivelYours,
swami_worldsynther-
swami_worldtraveler marked one of Nathanael Lawrence's replies in Microsoft Live Labs as useful. Nathanael Lawrence replied to the question "Why is photo cropping discouraged?".
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swami_worldtraveler replied on November 02, 2009 14:23 to the question "Why is photo cropping discouraged?" in Microsoft Live Labs:
Perfect! Tnx a lot, Nathanael. So, it's mostly a "center of image"/object position calculation issue, plus a little focal length matter. Know I know:) -
swami_worldtraveler asked a question in Microsoft Live Labs on November 01, 2009 09:43:
Why is photo cropping discouraged?Exactly how does it affect synthing? How can you identify the effect in the synth? Perhaps it has something to do with focal length? Perhaps something else...
Will this "fix" work?: In Photoshop, make a copy and crop the image (and straighten, if necessary); paste this back into the original; next perform a FreeTransform scale to size the image back to fill the entire frame. Note: this works, provided the copy/straighten doesn't significantly alter the aspect ratio. So, the final image has the original metadata (e.g. focal length) and aspect ratio.
TIA. -
A comment on the problem "Sideways image - dizy experience" in Microsoft Live Labs:
I have seen "sideways" images synth correctly, tho they still appear sideways in Grid View. So, I pre-rotate them in Windows Explorer. If a synth view is sideways or crooked, try hittin 'Y' to correct. Haven't tried on sideways orientation, but definitely works if crooked. Lemme kno how it works out for u... – swami_worldtraveler, on March 13, 2009 12:54 -
swami_worldtraveler asked a question in Microsoft Live Labs on March 01, 2009 10:02:
Photosynth "Quick Guide" and "Primer" (submitted by user)Under the topic of "sharing," I guess...
FYI,
I just got hooked on Photosynth. My first big synth contribution is from the Mayan ruins in Palenque, Chiapas, Mexico. It's almost 200 pix, including some maps, and a few hidden surprises. Although it's not about the point cloud, there is a nice one of a temple, plus all the points combined give a good spatial sense of the site. From what I've seen so far, it's not your typical synth. Plus, there's an associated blog of TravelPod here: http://www.travelpod.com/travel-blog-.... The blog has other pix, panoramas, and even a howler monkey video.
So, to entice and inform my family and friends I created a couple helpful blogs as follows...
Quick Guide to Navigating thru a Photosynth "Synth"
www.travelpod.com/travel-blog-entries...
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First, WHAT IS PHOTOSYNTH?... Well, it's only the coolest FREE web-base program to compile 2D photos into a navigable 3D environment! This result is called a "synth."
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Photosynth Primer
www.travelpod.com/travel-blog-entries...
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I decided to put together some visuals and text to entice you into my latest foto/3D obsession....
Here are a series of screen-grabs. They were chosen to be visual compelling, and to cover a broad range of features, user controls, and user interface particulars. Highlighted ruins include the Temple of the Inscriptions, a grand view of the site, and the skull from the Temple of the Skull. Totally new to most, and hopefully exciting, is the 3D "point cloud" model resulting from the synth. Exactly what this is will be come clear below.
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Plz, check them out, and feel free to share them:)
