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You are quite correct, Antonio. There is no retinal rivalry, and no window violation in either image. However, from an artistic standpoint, the uncropped version is a better composition. As far as "coming through the window" this in itself is never a window violation, and could easily have come through the window much further and still be comfortable to view. Touching the top or bottom edge does not by itself cause a window violation. If it looks unnatural, it is a compositional error, not a window violation.
On Sat, Jun 20, 2020 at 11:37 AM, Stereopix Net wrote:
To contribute to this discussion of the WV I have just shot two stereo pairs with a tree branch protruding inside the window.
Even objects that were close to or even touching the top or bottom edges would not cause a violation unless they also crossed the left or right edge, in which case it would be a left or right edge violation, not top or bottom. It would not be possible to have a top edge or bottom edge window violation unless the images were vertically misaligned (out-of-register in the vertical direction such that one eye-view image was either higher or lower than the other).
This opposition is clearly a terminology problem concerning what means a window violation (WV).
If you consider that the WV is the rivalry caused by a part of the content in front that should be displayed outside of the medium for the other eye (of course you can view this with an other viewpoint), then there cannot be WV on top/bottom.
It looks like it is your definition because of the exception you gave for the tome/bottom edge wrongly aligned that create rivalries.
In one case the branch does not interfere with any border, so there is clearly no WV.
In the other case the same branch is cropped by the upper border, and I invite you to consider whether is there WV or not. IMO there is no WV technically, but... for some reason the effect is not pleasant.
NO WV: https://stereopix.net/photo:9ON3DHJQNV/
WV arguable: https://stereopix.net/photo:9ON3DOLGU0/