On Mon, 27 Dec 2021, 13:41 [email protected], <[email protected]> wrote:
> " you will need to use all of these, but not all at once - this can > confuse the optimiser. " > > I want to understand that detail. Photos tab: Optimize Geometric: the > calculate button: > Does it start from zero when you click it or does it start from wherever > any previous optimize finished? Your statement, that I want to understand, > implies that previous values of its outputs influence it. > It starts at the previous values, so if you are stuck in a local minima you may have to reset all the values and start from the beginning. In other kinds of software, a typical optimizer can find a local optimum in > the parameter space that might be much worse than the global optimum, so > the starting point can make a big difference. I don't know whether that is > what you mean by "confuse". > Yes, the simplest way to get stuck in a local minima is by having angle of view for all photos at 0 (this is so easy that Hugin has various built-in workarounds to avoid this). There other ways to get stuck, particularly barrel distortion can be so extreme that only resetting it all to 0 will get you out. -- Bruno -- 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/hugin-ptx/CAJV99Zj-HfnP6%3DJX1Xfe9%3DXXGPguxMaPCHGjxXuD6SxhMx_GQA%40mail.gmail.com.
