From: Kleber M. <kle...@gm...> - 2008-03-19 12:57:54
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Sorry, My English is not so good. When I say defish I mean reverse the fish eye . On Wed, Mar 19, 2008 at 4:18 AM, Emmanuel Pietriga <emm...@in...> wrote: > What do you mean by change the algo to give a defish? You're working > on a bitmap to which a fisheye has been applied, right? I'm not sure I > understand what you mean by change the algo. What algorithm are you > talking about? > > Emmanuel > > > > On Mar 19, 2008, at 2:28 AM, Kleber Magno wrote: > > > Do you have any idea how to change the algorithm to give a defish > > ?Maybe you can tell me and I can do this change > > > > > > On Tue, Mar 18, 2008 at 9:49 PM, Kleber Magno > > <kle...@gm...> wrote: > >> Emmanuel, > >> I don't have any information about the radial or magnification but > >> all > >> image look have same parameters I will try some possibility. > >> thanks very much for your replay. I will try change thw code and > >> investigate how to solve this problem. > >> > >> best great > >> > >> On Tue, Mar 18, 2008 at 5:01 PM, Emmanuel Pietriga > >> > >> > >> <emm...@in...> wrote: > >>> You should be, though it is not easy to say for sure from this small > >>> cropped image. Do you have any information on the original fisheye > >>> properties (e.g. magnification factor in the center, radius) ? > >>> > >>> From what Isee, I would apply a radial L(2) lens with a linear > >>> profile, outer radius that covers the whole fisheye, and inner > >>> radius > >>> of 1. For the magnification factor MM, it looks like the original > >>> is 2 > >>> or 3, so the compensating one would be the inverse of this (I > >>> think, I > >>> haven't done the maths, just what I think it should be to > >>> compensate). > >>> But it is difficult to tell from this small image. > >>> > >>> Note that there is a problem with lenses that have a mag factor MM > >>> in > >>> [0;1]. It kind of works for values relatively close to 1, but at > >>> some > >>> point the lens just no longer works. That's something I have to fix, > >>> but I haven't got the time to fix it yet (the demand for such lenses > >>> isn't that big :-) ). > >>> > >>> Emmanuel > >>> > >>> > >>> > >>> On 18 mars 08, at 18:22, Kleber Magno wrote: > >>> > >>>> OK, > >>>> So I have this attach image and I need defish.So with [0;1] can I > >>>> get > >>>> a inverse effect? > >>>> Kleber > >>>> > >>>> > >>>> > >>>> On Tue, Mar 18, 2008 at 1:48 PM, Emmanuel Pietriga > >>>> <emm...@in...> wrote: > >>>>> You mean a magnification factor between 0 and 1? Can you show me > >>>>> an > >>>>> example. I'll tell you if a lens can "compensate" for it or not. > >>>>> Note > >>>>> that I'm afraid compensating (if I understand correctly what you > >>>>> intend to do) will involve information loss since there might be > >>>>> up- > >>>>> to- > >>>>> two subsampling steps involved in inverse-fisheye'ing an already > >>>>> fisheye'd view. > >>>>> > >>>>> Emmanuel > >>>>> > >>>>> > >>>>> > >>>>> On 18 mars 08, at 17:00, Kleber Magno wrote: > >>>>> > >>>>>> Hi Emmanuel, > >>>>>> > >>>>>> I have some images with fisheye effect and I need remove it. > >>>>>> So I > >>>>>> think that one algorithm like fisheye with magnitude negative. > >>>>>> thanks > >>>>>> > >>>>>> > >>>>>> On Tue, Mar 18, 2008 at 12:25 PM, Emmanuel Pietriga > >>>>>> <emm...@in...> wrote: > >>>>>>> Hello. What do you mean by "concave effect"? Can you show an > >>>>>>> example > >>>>>>> of what you want to achieve? > >>>>>>> > >>>>>>> Emmanuel > >>>>>>> > >>>>>>> > >>>>>>> > >>>>>>> > >>>>>>> On 18 mars 08, at 14:10, Kleber Magno wrote: > >>>>>>> > >>>>>>>> Hi! > >>>>>>>> I need a concave effect. How I can do it? I try many > >>>>>>>> implementation > >>>>>>>> of Lens.. > >>>>>>>> > >>>>>>>> Thanks > >>>>>>>> Kleber > >>>>>>>> > >>>>>>>> ------------------------------------------------------------------------- > >>>>>>>> This SF.net email is sponsored by: Microsoft > >>>>>>>> Defy all challenges. Microsoft(R) Visual Studio 2008. > >>>>>>>> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > >>>>>>>> _______________________________________________ > >>>>>>>> zvtm-devel mailing list > >>>>>>>> zvt...@li... > >>>>>>>> https://lists.sourceforge.net/lists/listinfo/zvtm-devel > >>>>>>> > >>>>>>> -- > >>>>>>> Emmanuel Pietriga > >>>>>>> INRIA Futurs - Projet In Situ tel : +33 1 69 15 34 66 > >>>>>>> Bat 490, Université Paris-Sud fax : +33 1 69 15 65 86 > >>>>>>> 91405 ORSAY Cedex FRANCE http://www.lri.fr/~pietriga > >>>>>>> > >>>>>>> > >>>>>>> ------------------------------------------------------------------------- > >>>>>>> This SF.net email is sponsored by: Microsoft > >>>>>>> Defy all challenges. Microsoft(R) Visual Studio 2008. > >>>>>>> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > >>>>>>> _______________________________________________ > >>>>>>> zvtm-devel mailing list > >>>>>>> zvt...@li... > >>>>>>> https://lists.sourceforge.net/lists/listinfo/zvtm-devel > >>>>>>> > >>>>>> > >>>>>> ------------------------------------------------------------------------- > >>>>>> This SF.net email is sponsored by: Microsoft > >>>>>> Defy all challenges. Microsoft(R) Visual Studio 2008. > >>>>>> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > >>>>>> _______________________________________________ > >>>>>> zvtm-devel mailing list > >>>>>> zvt...@li... > >>>>>> https://lists.sourceforge.net/lists/listinfo/zvtm-devel > >>>>> > >>>>> -- > >>>>> Emmanuel Pietriga > >>>>> INRIA Futurs - Projet In Situ tel : +33 1 69 15 34 66 > >>>>> Bat 490, Université Paris-Sud fax : +33 1 69 15 65 86 > >>>>> 91405 ORSAY Cedex FRANCE http://www.lri.fr/~pietriga > >>>>> > >>>>> > >>>>> ------------------------------------------------------------------------- > >>>>> This SF.net email is sponsored by: Microsoft > >>>>> Defy all challenges. Microsoft(R) Visual Studio 2008. > >>>>> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > >>>>> _______________________________________________ > >>>>> zvtm-devel mailing list > >>>>> zvt...@li... > >>>>> https://lists.sourceforge.net/lists/listinfo/zvtm-devel > >>>>> > >>>> < > >>>> rf > >>>> .PNG > >>> > >>> > >>>>> > >>>> ------------------------------------------------------------------------- > >>>> This SF.net email is sponsored by: Microsoft > >>>> Defy all challenges. Microsoft(R) Visual Studio 2008. > >>>> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/_______________________________________________ > >>>> zvtm-devel mailing list > >>>> zvt...@li... > >>>> https://lists.sourceforge.net/lists/listinfo/zvtm-devel > >>> > >>> -- > >>> Emmanuel Pietriga > >>> INRIA Futurs - Projet In Situ tel : +33 1 69 15 34 66 > >>> Bat 490, Université Paris-Sud fax : +33 1 69 15 65 86 > >>> 91405 ORSAY Cedex FRANCE http://www.lri.fr/~pietriga > >>> > >>> > >>> ------------------------------------------------------------------------- > >>> This SF.net email is sponsored by: Microsoft > >>> Defy all challenges. Microsoft(R) Visual Studio 2008. > >>> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > >>> _______________________________________________ > >>> zvtm-devel mailing list > >>> zvt...@li... > >>> https://lists.sourceforge.net/lists/listinfo/zvtm-devel > >>> > >> > > > > ------------------------------------------------------------------------- > > This SF.net email is sponsored by: Microsoft > > Defy all challenges. Microsoft(R) Visual Studio 2008. > > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > > _______________________________________________ > > zvtm-devel mailing list > > zvt...@li... > > https://lists.sourceforge.net/lists/listinfo/zvtm-devel > > -- > Emmanuel Pietriga > INRIA Saclay - Projet In Situ tel : +33 1 69 15 34 66 > > > Bat 490, Université Paris-Sud fax : +33 1 69 15 65 86 > 91405 ORSAY Cedex FRANCE http://www.lri.fr/~pietriga > > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________ > zvtm-devel mailing list > zvt...@li... > https://lists.sourceforge.net/lists/listinfo/zvtm-devel > |