vrthree
Posts: 33
Location: Leeds, United Kingdom
Registered: 17 Aug 2005
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Distorted/Fuzzy edges in Pure Player
Posted: 3 Jan 2008 at 21:35 GMT
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When I produce a pano using Quicktime it looks perfect, however when converting it into a java player using immervision the edges (desks, window frames etc etc) seem to become distorted or fuzzy when I move the cursor. I have seen a website with some examples using the same player that are much cleaner.
Any ideas???
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elevation360
Posts: 3
Location: Law, Scotland, United Kingdom
Registered: 21 Nov 2007
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Re: Distorted/Fuzzy edges in Pure Player
Posted: 13 Jan 2008 at 14:09 GMT
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With the Immervision player it all depends on your original filesize and image size/quality settings.
Once you go below 3000px x 1500px with Immervision you will noticeably lose quality, especially when you go full-screen.
QuickTime is certainly the best format for quality and everything else is always a compromise between quality and filesize.
I have just moved away from QuickTime and have gone over to the Immervision player but this is purely because I can use smaller filesizes on my server while maintaining reasonable quality.
elevation360
elevation360.com
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bigwade
Posts: 826
Location: Utrecht, Netherlands
Registered: 19 Oct 2005
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Re: Distorted/Fuzzy edges in Pure Player
Posted: 13 Jan 2008 at 17:18 GMT
updated: 13 Jan 2008 at 17:25 GMT
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Change the quality param in the html file with a texteditor from 100 to 200
tinyurl.com/27ntrb
2 panos from juli 2006 (20D/Sig8-4.0)
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Ken Warner
Posts: 821
Location: Mammoth Lakes, United States
Registered: 14 Aug 2004
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Re: Distorted/Fuzzy edges in Pure Player
Posted: 13 Jan 2008 at 18:13 GMT
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vrthree said: When I produce a pano using Quicktime it looks perfect, however when converting it into a java player using immervision the edges (desks, window frames etc etc) seem to become distorted or fuzzy when I move the cursor. I have seen a website with some examples using the same player that are much cleaner.
Any ideas???
Possibly this is what you are seeing. Most Java viewers use a two stage interpolation strategy. The first stage is a fast interpolation method like nearest neighbor and is used while the image is being panned. When the user stops panning the image, a better interpolation method is used -- like bi-cubic or some other good quality interpolation method.
Nearest neighbor interpolation will produce jaggy or fuzzy edges and is used while panning because it's fast.
Bi-cubic or other interpolation methods will produce a better quality image.
Quicktime uses a different strategy than Java for displaying image -- I think.
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