On February 12, 2011 10:38:15 pm Daniel Reetz wrote: > AFAIK, Hugin always searches the entire area of each image for control > points. I use Hugin for all kinds of image registration [1], and often > I would get much better results if I could specify a "region of > interest" where the CP generator could search.
Or specify a "region of interest" and discard all CPs generated outside it. > Is this possible with the present version of Hugin? Is there a trick > to getting the Align Images step to search in a limited area in each > image? Not AFAIK, but there are some elements that can be "re-purposed" for your application. If I understand your application correctly, you would like to have CPs generated on the object to synthetically focus on. You will need to mask that object in one way or another? Hugin has a mask editor. The one function that would need to be implemented to achieve your expeted result is pruning CPs that are outside (or inside) a selected mask. Not excessively difficult to implement. There are other pruning mechanism within Hugin as well, but they may not be helpful in your case. Celeste prunes control points from the sky. Initially we wanted to exclude the sky from the CP generation, but it turned out to be computationally more efficient to do it the other way around. "clean control points" (a button on the Images tab) prunes statistical outliers. Must press the button a few times. I found it to be excellent at removing CPs from moving subjects; and very good at removing CPs from foreground subjects (those pesky CPs that are more parallax-affected than the far away CPs). > Of course I can set CPs manually, but it's a lot of work. You don't want that. That said, adding CP's manually in Hugin is a very fast process. Click left, click right, right-click. You don't have to position your mouse perfectly on the spot on the left and right image. On right- clicking Hugin fine-tunes the location of the CP, so you just need to target the approximate area (+/- 10pixels). Yuv
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