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Subject : Re: [Anaglyphs] strike two - Chris, Betty, Ken, all newer members
From : "Brian Wallace"
To :
Date : Fri, 2 Jan 2009 14:45:43 -0500

59869_DSCF0320_Behind_SW.jpg : (99K)
59869_DSCF0320.jpg : (101K)

Hi Chris,
 
    I love the picturesque and textural quality of your image.  Good find!
 
    The information below is not meant just for you as you and others may already have knowledge of some of it.
 
    Some friendly advice... (The 1.05 MB image exceeded our group's suggested maximum 400 - 500K limit).  The unnecessary large file size takes up unneeded disk space on the group's archive as well as being difficult for some members still using dial up access.  Resizing the resolution and file size (which are separate entities) and saving as JPEG (.jpg extension) should not in most cases detrimentally affect image quality to the naked eye.
 
    Please don't flinch.  : )   And please don't count your strikes, otherwise I would be "out" a long time ago.  : )
 
    The following text and attached examples of your image are my attempt to help you and other members presently trying to understand the difference between a WV (object cutting the edge of the Stereo Window) and TTW (Pop Out,) effect (not to be confused with a Phantogram - "Pop up").  The TTW effect pushes and object (usually Nearest Point Object) of an image through the Stereo Window to make it seem closer to the viewer than the Stereo Window.  Correctly accomplished, the object being pushed in this way should not touch any portion of the SW (Stereo Window).
 
    I changed your image file size to around 100K.  The quality will not be as good as having the original stereo pair but should suffice for the explanation suggested below.  See if you can tell the difference between the two examples and hopefully make sense of my explanation.  The examples do not show dramatic or extreme differences which means it may be more difficult to notice.  This is why Shahrokh's link explaining WV and Stereo Window should be most helpful to beginning enthusiasts... http://www.dabiri.8m.com/Stereo-Window/
 
    The composition of this particular image doesn't really allow for a TTW (Through The Window) effect without introducing a WV (Window violation).  The WV causes eye strain as the brain may not consciously notice what's wrong but struggles subconsciously to make sense of what would in the real world be impossible.  In other words, imagine that you are actually viewing this scene through a real "physical" window.  If the rock formations actually came through our physical window, it would penetrate (violate) the physical window frame! Our digital solution is not go for a TTW or WV but simply push the image back behind the SW (Stereo Window).  The image looses a little impact by being pushed back but overall it becomes much easier to view.  (See DSCF0320 Behind SW.jpg "modified version of your image")
 
    We have intentionally caused WV's in the past but only for the sake of improving the overall view of an image for the purpose of reducing ghosts.  Now we can make use of the "Floating Window" (FW) which is a different topic but allows us to reduce the harshest ghosts without creating a typical WV.  I use the word typical because in actuality the FW is in itself a WV but a friendly WV if used successfully.  It is a tool... not a gimmick or special effect and does not reduce ALL ghosts but improves the overall view and appeal.  (The newest version of SPM (Stero Photo Maker) has access through the menu for a Floating Window feature). 
 
    There will be other image opportunities that lend themselves better for TTW without causing a WV.  You will eventually become aware of these opportunities while composing your image before taking the shots.  Other times, you may discover the opportunity while in the image editing stage.  The thing to look for is the opportunity/ability to push the NPO (Nearest Point Object) in the image through the window (closer towards the viewer) without the object in the image touching any portion of the Stereo Window's edge, (as in reality).
 
    Please don't take this the wrong way.  Anyone who's been reading ALL the posts in the group knows by now that I am all for originality, creativity, experimentation, and thinking outside the box!  But even I through time, have come to know and acknowledge certain fundamental rules that should be adhered to.  (Later you may find possible exceptions, as I believe there can be exceptions to everything).  I think it takes time to fully understand all of the basic "rules" as it did for me and at least some trust, be it reserved, from fellow seasoned members who have your best interest at heart.  After an understanding of these basics, then feel free to make your "choices" for your own interests.  I feel though that until that point is reached, we should not lead new enthusiasts astray through misunderstanding of basic principles.
 
    Congratulations on a terrific shot Chris.  We should always keep original (high res) pairs and work from copies of them so that if we wish, we can redo a stereo image.
 
Best regards,
Brian
 
 
----- Original Message -----
Sent: Friday, January 02, 2009 11:18 AM
Subject: [Anaglyphs] strike two

Volcanic rocks on the coast of Madeira.
 
taken with two cheapo fujifilm A820's taped to a cardboard box.
 
I'm flinching after the frame violation comments from my last effort !  :-)
 
Chris

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