Re: Re: GraphicsMagick 16bit on windows

[Tatsuro MATSUOKA]

----- Original Message -----

> From: JohnD 
> To: help-octave
> Cc: tmacchant; jan.neggers
> Date: 2015/7/4, Sat 11:15
> Subject: RE: Re: GraphicsMagick 16bit on windows
> 
>> 
>>  Message: 9
>>  Date: Sat, 4 Jul 2015 10:49:40 +0900 (JST)
>>  From: "address@hidden" <address@hidden>
>>  To: address@hidden, address@hidden,
>>      address@hidden
>>  Subject: Re: GraphicsMagick 16bit on windows
>>  Message-ID: <address@hidden>
>>  Content-Type: text/plain; charset=iso-2022-jp
>> 
>>  --- tmacchant
>>  > --- jan.neggers
>>  > > > On 03 Jul 2015, at 16:47, Marco Atzeri <marco.atzeri On 
> 7/3/2015
>>  > > > 11:49 AM, Jan Neggers wrote:
>>  > > >> I?m using octave 4.0 on windows 7, and I need 16bit 
> image support.
> I did
>>  install the 16bit version of GraphicsMagick, but how do I tell octave to
> use that
>>  version instead of the 8bit version provided with octave?
>>  > > >> _______________________________________________
>>  > > >
>>  > > > You can't.
>>  > > >
>>  > > > So or you rebuild octave with 16bit version of 
> GraphicsMagick or
>>  > > > you use the cygwin version that already has 16 bit support.
>>  > >
>>  > > Ah, ok, I understand, I was more or less expecting this answer, 
> but
>>  sometimes we do get lucky! I?ll try to compile octave, but the problem is
> that
>>  this means all the students also have to do that, which is not really an
> option.
>>  > >
>>  > > btw, the reason why we need 16bit support is because the images 
> are
> used
>>  as measurement data, i.e. computer-vision type problems, where color
> precision
>>  does matter (the camera actually captures in 14bit).
>>  > >
>>  > >
>>  > >
>>  > Do you have or can use linux machine?
>>  > If not, I do not recommend to try to build octave on windows.
>>  > Octave for native windows is now built by an tool called mxe-octave on
>>  > linux. Theoretically mxe-octave can be used on windows but it is not
> easy as
>>  on linux. If you can use linux for mxe-octave build, I can give you
> advises.
>>  > If you cannot, please wait JohnD's response.
>>  > He is the most working person on mxe-octave.
>>  >
>>  > BTW, I think that to use cygwin version of octave is practical 
> solution
> for the
>>  issue.
>>  >
>>  > Tatsuro
>>  >
>> 
>>  For way to install octave-4.0.0 on cygwin,  see
>> 
>>  http://wiki.octave.org/Octave_for_Microsoft_Windows#Octave_4.0.0_on_cyg
>>  win
>> 
>>  Tatsuro
>> 
> 
> Mxe-octave should compile pretty much as is on msys2 (32 bit) with the right
> tools installed, however takes many hours to compile, vs linux cross compile
> with can be done in a hour or two on a fast machine



John

Can you update MinGW part of below?
http://wiki.octave.org/Windows_Installer


I have not yet been gotten successful results (stopped at octave build.).

Tatsuro