Re: JPS information

[P3D Andrew Woods <andrew@xxxxxxxxxxxxxxxxxxxxx>]

Greg Marshall wrote:
> Watch our web site for some interesting developments coming soon:

Thanks for the very interesting information.  Please post a message
on photo-3d when you put any JPS updates on your site.

> They have
> added some tags to the file to indicate a half-height image
> (for display on interlaced systems).  This is somewhat 
> negative in our view because standard imaging tools such
> as Photoshop cannot insert the tags, but we will try to
> support it in our viewer.

This was one of my thoughts when I first heard of JPS.
To convert an interlaced 3D image to JPS format would otherwise require
the two fields to be separated and the missing information (lines) to be
interpolated.  Basically redundant information beefing up the size
of the JPS - the interpolation could be done in the viewer.

But as you say it does create compatibility problems with standard
JPEG software like photoshop or other image viewers.

Most of my images are grabbed from underwater stereoscopic video 
cameras and are therefore already in the interlaced format.

Thanks again for the info, keep feeding us more... :-)

Andrew Woods.


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