I just want to start by saying that I love this software and am trying to learn how it works and hopefully be able to contribute by improving the manual for others. My programming skills are not up to the task of helping out in other ways. I do however feel like I'm a pretty experienced user and have good expectations about how software should behave. (Others may disagree. :-) )
On Wednesday, October 22, 2014 1:45:36 PM UTC-4, T. Modes wrote: > > > Am Mittwoch, 22. Oktober 2014 18:59:07 UTC+2 schrieb John Muccigrosso: >> >> No one is asking for sub-pixel accuracy. We're trying to understand how >> the masking functionality works and noted that it behaves in unexpected >> ways and not as the manual (which is admittedly minimal) indicates. >> > > I can't reproduce the issues you mentioned. I can get only something > similar as the mentioned issues if I use masks with very narrow points. And > for this the mask tab is not indented. > I'm not sure how narrow my points are. Too narrow, it seems. That may be the whole problem I'm seeing: distances are so small compared with what Hugin expects, that the fuzzy-distance logic is kicking in. In my case, my mask is about 100 pixels high and about half that in width. Also the tutorial states this already: > cite: "Blend masks are not like your normal 'cut out' and 'paste in' > masking. They are more like giving hints to the blender, so it isn't always > necessary to carefully define a mask exactly on the boundary of an object. > Often it sufficient to only roughly enclose the object to be included or > excluded." > Yes, that's in the tutorial, but not the manual. I'll add it in. > I'd go so far as to say that it behaves unlike any similar function I've > used in other software. > > Then I have used other software than you. > That is likely. :-) However I'm far from a novice user. Note however that the tutorial you like has a mask with over 30 points, and >> that it also includes the directions on how to manipulate masks that don't >> behave as described. >> > > Where is this described? I don't see such text where issues like in your > first post are mentioned. > At the bottom of the tutorial is a section explaining how to edit masks. It uses similar language to the manual, which is the language that I cited in my original post. It doesn't describe the problems that I mentioned; it just explains how the editing works. > PS: The selection tools use a little fuzzy distance, otherwise you would > have to click exactly on the point or line, which would be nearly > impossible for lines. Alternatively the selections points and lines would > have to be drawn significant bigger and would hide parts of the image. > This is important to know (and not surprising). Again, I'll add it to the manual. From my perspective though, the distances can be quite large compared with my expectations. It's easy enough to click within, say, 10 screen pixels of a point, which may be more "actual" pixels depending on scaling, of course. There may also be a bug in the way the "add point" clicking works. (My #5 above.) For me, if I command-click (control-click on non-Macs) near a line segment (or even on it, as far as I can see), Hugin will sometimes add a point in the middle of another segment. Even assuming some fuzziness, this seems very much a bug to me. See the first attachment where I clicked right where the new blue point is and you can see how that point was added to a segment all the way across the mask instead of the segment right next to it. Same thing happens if I click right on the line. This was the first thing I did after opening Hugin. I just noticed something else as well: Hugin seems to remember previous new points even after they are undone, at least as long as I'm in the Masks tab and sometimes even when I move away and come back. Here's what I did: make a new point; undo it; make another new point. Result: my first new point returns, along with the second one. See the second attachment. Does the algorithm also grab more than one point under certain circumstances? For me, that's not desirable. When I want more than one point, I'll either add them by shift-clicking (which is pretty standard in UIs) or use the marquee. And the marquee should never add points that are outside it. -- A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ --- You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. To unsubscribe from this group and stop receiving emails from it, send an email to hugin-ptx+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/hugin-ptx/95422f08-3171-458c-95de-003d07ff078b%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
