that is why i suggested lots of pictures, with lots of cropping. there is nearly guaranteed to be at least one accurate pixel in any photo. (no accurate pixels = operator error) the stitching can be done by the most versatile pattern recognition engine, i.e. manually.
--- On Sun, 2/26/12, gene heskett <ghesk...@wdtv.com> wrote: From: gene heskett <ghesk...@wdtv.com> Subject: Re: [Emc-users] Film Emulsion for Encoder Wheels? To: emc-users@lists.sourceforge.net Date: Sunday, February 26, 2012, 9:00 PM On Sunday, February 26, 2012 11:08:20 PM charles green did opine: > take lots of lower quality pics, crop for the good parts, and stitch > together. There is supposedly a utility to facilitate that Charles, but the one time I tried it, it was rather soundly defeated by the lack of true imaging by the lens of my then $500 Olympus camera, which until then I was not aware that it had _any_ barrel or pincushion distortion. That camera was a really bad battery hog although its color was excellent and has been replaced by a Nikon L100 Coolpix which has very obvious amounts of barrel distortion and poorer color, so I haven't even tried to locate and build it again. Maybe it has gotten smart enough to adjust for those distortions in the meantime. ISTR it was called Hugin or something similar sounding. Yeah, pclos calls hugin the 'panorama tools' gui. And that pulled in 6 other packages worth of dependencies. So I loaded up two pix of the kitchen cabinets I did new door panels for a couple years back and told it to merge them, which it did, but the result was very severely distorted because the camera was aimed uphill about 10 degrees, and 95% of the resolution of the images was lost in blending artifacts. Now if I could precorrect for that tilt by essentially telling it the film was vertical and that the lens was slid upwards a bit applied as predistortions to correct that camera tilt, maybe I might get something usable. Worth my time? Not really until I have material worth fooling with, probably by tripod mounting the camera on a precisely leveled head and shooting a pix about every 20 degrees of turning the camera. I do think its more mature than when I last tried it though. At least the barrel distortion, about 10% in that Nikon lens I expected a heck of a lot better from, didn't make it upchuck and complain. But it did throw an error and quit, some dependency it needed and didn't pull in when I attempted to change something and re-run it. Something to play with in warmer weather I believe, when I get near the bottom of the bucket and honeydo lists. :) Like that will happen soon, I need to put a hitch on the Toy so I can pull my trash trailer, and a fresh engine in my GMC, probably also hauled in said trailer once I hit the landfill with whats in it now, by getting something bigger than my lawn mower to pull it with rigged. [...] Thanks Charles. Cheers, Gene -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) My web page: <http://coyoteden.dyndns-free.com:85/gene> If God is perfect, why did He create discontinuous functions? ------------------------------------------------------------------------------ Try before you buy = See our experts in action! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-dev2 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Try before you buy = See our experts in action! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-dev2 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
