On 2023-10-02 at 09:21:59 +0200, ng0...@gmail.com wrote:
> Hello,
>
> the task is to obtain a spectrum of an infrared image, see attached, via
> Fourier Transform; several steps are required as outlined in the PDL Book.
> I guess, if these two commands from PDL::IO::Image worked,
>
> rimage('cat.jpeg'); # JPEG_GREYSCALE
> ...
> wimage('catmod.jpeg');
>
> the intermediate ones could be used from PDL::Graphics::Simple
Hello Thomas,
I see. The PDL Book copy that I just grepped does not use
`PDL::IO::Image`. Where are you getting that?
What the PDL Book I have uses is the built in `PDL::IO::Pic` which works
with the NetPBM package. That should work for your image. The functions
that you want are either `rim` or `rpic`.
Cheers,
- Zaki Mughal
>
> Thanks, Thomas
>
> On Sun, Oct 1, 2023 at 11:41 PM Zakariyya Mughal <zaki.mug...@gmail.com>
> wrote:
>
> > On 2023-09-18 at 14:37:54 +0200, ng0...@gmail.com wrote:
> > > Hello,
> > >
> > > wrt to the error below, this issue
> > > https://sourceforge.net/p/freeimage/discussion/36111/ is filed but
> > unlikely
> > > to get an answer.
> > >
> > > Question: does anyone have a working PDL environment with "use
> > > PDL::IO::Image" working - and would not mind sharing the steps (if not
> > too
> > > many) to set it up?
> >
> > Hello,
> >
> > Unfortunately, nobody has yet fixed Alien::FreeImage (this problem is
> > known and why PDL does not test against PDL::IO::Image at this time) and
> > I have not contacted the author. I might be able to help, but not
> > immediately.
> >
> > Which functionality of PDL::IO::Image do you need? It may be built-in to
> > PDL already.
> >
> > Cheers,
> > - Zaki Mughal
> >
> > >
> > > Thanks a lot, Thomas
> > >
> > > ---------- Forwarded message ---------
> > > From: <ng0...@gmail.com>
> > > Date: Thu, Sep 14, 2023 at 5:05 PM
> > > Subject: Re: [Pdl-devel] Debian 12 "-t experimental" install of PDL
> > > To: Ed . <ej...@hotmail.com>
> > > Cc: pdl-devel@lists.sourceforge.net <pdl-devel@lists.sourceforge.net>
> > >
> > >
> > > Dear All / Ed,
> > >
> > > as mentioned before, it is possible to get a smooth installation of PDL
> > > using (Perl 5.38, PDL 2.084) under Arch - in fact EndeavourOS - by the
> > > commands below. perlbrew is not used as I have not seen a clean install
> > > e.g. under Ubuntu which is still on perl 5.36:
> > >
> > > yay cpanminus
> > >
> > > sudo cpanm Term::ReadKey
> > >
> > > sudo cpanm Term::ReadLine::Gnu
> > >
> > > sudo cpanm Alien::Gnuplot # first
> > >
> > > sudo cpanm PDL::Graphics::Gnuplot # second
> > >
> > > sudo cpanm PDL::Graphics::Simple # third, pops up
> > >
> > > However, *Alien::FreeImage* throws an error in a next step. Would any
> > > developer mind to fix it:
> > >
> > > sudo cpanm Alien::FreeImage # first
> > > (used by: sudo cpanm PDL::IO::Image # second)
> > > ...
> > > Source/OpenEXR/Imath/ImathVec.h:2150:33: error: ISO C++17 does not allow
> > > dynamic exception specifications
> > > 2150 | Vec4<T>::normalizedExc () const throw (IEX_NAMESPACE::MathExc)
> > > | ^~~~~
> > > In file included from Source/FreeImage/../OpenEXR/IlmImf/ImfXdr.h:108,
> > > from
> > > Source/FreeImage/../OpenEXR/IlmImf/ImfGenericOutputFile.h:40,
> > > from
> > Source/FreeImage/../OpenEXR/IlmImf/ImfOutputFile.h:49:
> > > Source/OpenEXR/Half/half.h: In constructor ‘half::half(float)’:
> > > Source/OpenEXR/Half/half.h:462:22: warning: ISO C++17 does not allow
> > > ‘register’ storage class specifier [-Wregister]
> > > 462 | register int e = (x.i >> 23) & 0x000001ff;
> > > | ^
> > > Source/OpenEXR/Half/half.h:473:26: warning: ISO C++17 does not allow
> > > ‘register’ storage class specifier [-Wregister]
> > > 473 | register int m = x.i & 0x007fffff;
> > > | ^
> > > make: *** [Makefile.gnu:64: Source/FreeImage/PluginEXR.o] Error 1
> > > ###ERROR### make failed [512] at inc/My/Builder/Unix.pm line 33.
> > > -> FAIL Installing Alien::FreeImage failed. See
> > > /root/.cpanm/work/1694702761.20233/build.log for details. Retry with
> > > --force to force install it.
> > >
> > > Thanks a lot, Thomas
> > >
> > > On Sat, Sep 2, 2023 at 12:47 AM Ed . <ej...@hotmail.com> wrote:
> > >
> > > > Hi Thomas,
> > > >
> > > >
> > > >
> > > > You will want to install Term::ReadKey and probably
> > Term::ReadLine::Gnu to
> > > > have a nicer, more interactive perldl. I don’t use pdl2 myself, but it
> > did
> > > > tell you what it needs to run if you want to use it.
> > > >
> > > >
> > > >
> > > > Also, Alien::Gnuplot only installs (or checks for) actual gnuplot. If
> > you
> > > > want the PDL interface to it, which PDL::Graphics::Simple wraps
> > around, you
> > > > need to install PDL::Graphics::Gnuplot. This would solve the thing
> > > > PDL::Graphics::Simple was telling you: “Sorry, all known plotting
> > engines
> > > > failed. Install one and try again.” Please read
> > > >
> > https://metacpan.org/pod/PDL::Graphics::Simple#SUPPORTED-GRAPHICS-ENGINES
> > > >
> > > >
> > > >
> > > > Best regards,
> > > >
> > > > Ed
> > > >
> > > >
> > > >
> > > > *From: *ng0...@gmail.com
> > > > *Sent: *01 September 2023 18:10
> > > > *To: *Ed . <ej...@hotmail.com>
> > > > *Cc: *Ingo Schmid <ingo...@gmx.at>; pdl-devel@lists.sourceforge.net
> > > > *Subject: *Re: [Pdl-devel] Debian 12 "-t experimental" install of PDL
> > > >
> > > >
> > > >
> > > > Hello Ed,
> > > >
> > > >
> > > >
> > > > as I understand, there a different options to get First Steps from the
> > PDL
> > > > book to work. I have adopted the approach using perlbrew and cpanm as
> > > > they seem the most stable.
> > > >
> > > >
> > > >
> > > > Please find below the sequence of commands issued and the final error
> > > > messages under Ubuntu. I used the same approach on three different
> > Linux
> > > > distributions (Debian, Ubuntu, Arch) with the same result.
> > > >
> > > >
> > > >
> > > > Is there any chance to reproduce the problem and look into it?
> > > >
> > > >
> > > >
> > > > Thanks a lot, Thomas
> > > >
> > > >
> > > >
> > > > # idea: install PDL piggyback from CPAN under perlbrew
> > > >
> > > >
> > > >
> > > > perlbrew init # change prompt in .profile, .bashrc
> > > >
> > > > perlbrew install perl-5.38.0
> > > >
> > > > perlbrew install-cpanm
> > > >
> > > > perlbrew install-patchperl
> > > >
> > > > perlbrew switch perl-5.38.0
> > > >
> > > >
> > > >
> > > > cpanm Alien::Gnuplot # first ...OK
> > > >
> > > > cpanm PDL::Graphics::Simple # second ...OK
> > > >
> > > >
> > > >
> > > > Ubuntu: ~ $ pdl2
> > > >
> > > > pdl2: Devel::REPL version 1.003011 not found, running
> > > > '/home/th6mas/perl5/perlbrew/perls/perl-5.38.0/bin/perldl' instead...
> > > >
> > > > perlDL shell v1.357
> > > >
> > > > PDL comes with ABSOLUTELY NO WARRANTY. For details, see the file
> > > >
> > > > 'COPYING' in the PDL distribution. This is free software and you
> > > >
> > > > are welcome to redistribute it under certain conditions, see
> > > >
> > > > the same file for details.
> > > >
> > > > ReadLines, NiceSlice, MultiLines enabled
> > > >
> > > > Reading PDL/default.perldlrc...
> > > >
> > > > WARNING: Error loading PDL: 'Can't locate Term/ReadKey.pm in @INC (you
> > may
> > > > need to install the Term::ReadKey module) (@INC entries checked:
> > > >
> > /home/th6mas/perl5/perlbrew/perls/perl-5.38.0/lib/site_perl/5.38.0/x86_64-linux
> > > > /home/th6mas/perl5/perlbrew/perls/perl-5.38.0/lib/site_perl/5.38.0
> > > > /home/th6mas/perl5/perlbrew/perls/perl-5.38.0/lib/5.38.0/x86_64-linux
> > > > /home/th6mas/perl5/perlbrew/perls/perl-5.38.0/lib/5.38.0) at
> > > >
> > /home/th6mas/perl5/perlbrew/perls/perl-5.38.0/lib/site_perl/5.38.0/x86_64-linux/PDL/Doc/Perldl.pm
> > > > line 52.
> > > >
> > > > BEGIN failed--compilation aborted at
> > > >
> > /home/th6mas/perl5/perlbrew/perls/perl-5.38.0/lib/site_perl/5.38.0/x86_64-linux/PDL/Doc/Perldl.pm
> > > > line 52.
> > > >
> > > > Compilation failed in require at
> > > >
> > /home/th6mas/perl5/perlbrew/perls/perl-5.38.0/lib/site_perl/5.38.0/x86_64-linux/PDL/default.perldlrc
> > > > line 37.
> > > >
> > > > BEGIN failed--compilation aborted at
> > > >
> > /home/th6mas/perl5/perlbrew/perls/perl-5.38.0/lib/site_perl/5.38.0/x86_64-linux/PDL/default.perldlrc
> > > > line 37.
> > > >
> > > > Compilation failed in require at (eval 14) line 1.
> > > >
> > > > ' - trying blib.
> > > >
> > > > WARNING: PDL startup not found only plain perl available
> > > >
> > > >
> > > >
> > > > Note: AutoLoader not enabled ('use PDL::AutoLoader' recommended)
> > > >
> > > >
> > > >
> > > > perl> use PDL::Graphics::Simple
> > > >
> > > > Can't locate PDL/Graphics/PGPLOT/Window.pm in @INC (you may need to
> > > > install the PDL::Graphics::PGPLOT::Window module) (@INC entries
> > checked:
> > > >
> > /home/th6mas/perl5/perlbrew/perls/perl-5.38.0/lib/site_perl/5.38.0/x86_64-linux
> > > > /home/th6mas/perl5/perlbrew/perls/perl-5.38.0/lib/site_perl/5.38.0
> > > > /home/th6mas/perl5/perlbrew/perls/perl-5.38.0/lib/5.38.0/x86_64-linux
> > > > /home/th6mas/perl5/perlbrew/perls/perl-5.38.0/lib/5.38.0) at
> > > >
> > /home/th6mas/perl5/perlbrew/perls/perl-5.38.0/lib/site_perl/5.38.0/PDL/Graphics/Simple/PGPLOT.pm
> > > > line 28, <STDIN> line 1.
> > > >
> > > >
> > > >
> > > > perl> imag (sin(rvals(200,200)+1))
> > > >
> > > > Sorry, all known plotting engines failed. Install one and try again.
> > > >
> > > > at
> > > >
> > /home/th6mas/perl5/perlbrew/perls/perl-5.38.0/lib/site_perl/5.38.0/PDL/Graphics/Simple.pm
> > > > line 434, <STDIN> line 2.
> > > >
> > > > PDL::Graphics::Simple::new("PDL::Graphics::Simple") called at
> > > >
> > /home/th6mas/perl5/perlbrew/perls/perl-5.38.0/lib/site_perl/5.38.0/PDL/Graphics/Simple.pm
> > > > line 389
> > > >
> > > > PDL::Graphics::Simple::pgswin() called at
> > > >
> > /home/th6mas/perl5/perlbrew/perls/perl-5.38.0/lib/site_perl/5.38.0/PDL/Graphics/Simple.pm
> > > > line 1262
> > > >
> > > > PDL::Graphics::Simple::_global_or_new() called at
> > > >
> > /home/th6mas/perl5/perlbrew/perls/perl-5.38.0/lib/site_perl/5.38.0/PDL/Graphics/Simple.pm
> > > > line 1151
> > > >
> > > > PDL::Graphics::Simple::imag(PDL=SCALAR(0x563dd1c9aca0)) called at (eval
> > > > 50) line 1
> > > >
> > > > eval 'imag (sin(rvals(200,200)+1))
> > > >
> > > > ' called at (eval 36) line 6
> > > >
> > > > main::eval_and_report("imag (sin(rvals(200,200)+1))\x{a}") called at
> > > > /home/th6mas/perl5/perlbrew/perls/perl-5.38.0/bin/perldl line 618
> > > >
> > > > main::process_input() called at
> > > > /home/th6mas/perl5/perlbrew/perls/perl-5.38.0/bin/perldl line 638
> > > >
> > > > eval {...} called at
> > > > /home/th6mas/perl5/perlbrew/perls/perl-5.38.0/bin/perldl line 638
> > > >
> > > > require /home/th6mas/perl5/perlbrew/perls/perl-5.38.0/bin/perldl
> > called at
> > > > /home/th6mas/perl5/perlbrew/perls/perl-5.38.0/bin/pdl2 line 27
> > > >
> > > > main::BEGIN() called at
> > > > /home/th6mas/perl5/perlbrew/perls/perl-5.38.0/bin/pdl2 line 33
> > > >
> > > > eval {...} called at
> > > > /home/th6mas/perl5/perlbrew/perls/perl-5.38.0/bin/pdl2 line 33
> > > >
> > > >
> > > >
> > > > perl> quit
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > On Fri, Sep 1, 2023 at 4:56 PM Ed . <ej...@hotmail.com> wrote:
> > > >
> > > > Please just try with the latest (Perl 5.38, PDL 2.084), and report any
> > > > problems?
> > > >
> > > >
> > > >
> > > > Best regards,
> > > >
> > > > Ed
> > > >
> > > >
> > > >
> > > > *From: *ng0...@gmail.com
> > > > *Sent: *31 August 2023 19:09
> > > > *To: *Ingo Schmid <ingo...@gmx.at>
> > > > *Cc: *pdl-devel@lists.sourceforge.net
> > > > *Subject: *Re: [Pdl-devel] Debian 12 "-t experimental" install of PDL
> > > >
> > > >
> > > >
> > > > Hello Ingo,
> > > >
> > > >
> > > >
> > > > much appreciate! Just to ask which perl version is most likely to run
> > the
> > > > commands from the First Step PDL Book?
> > > >
> > > >
> > > >
> > > > @anyone: which perl version is known to work for that purpose?
> > > >
> > > >
> > > >
> > > > Thanks a lot, Thomas
> > > >
> > > >
> > > >
> > > > On Thu, Aug 31, 2023 at 11:00 AM Ingo Schmid <ingo...@gmx.at> wrote:
> > > >
> > > > Hi,
> > > >
> > > > I have not really read through the whole thread, I apologise if this
> > does
> > > > not apply to your problem then.
> > > >
> > > > I have moved most of the PDL stuff to perlbrew which allows a fairly
> > > > system independent installation, it's berrybrew on windows, I don't own
> > > > Macs. On linux, your distribution most probably provides it, I used
> > apt to
> > > > install the software itself. The best part about is, that system (perl)
> > > > upgrades don't break your PDL installation. This allowed me to
> > consistently
> > > > run things cross platform with no troubles for a long time.
> > > >
> > > > Run
> > > >
> > > > > perlbrew install <perl version>
> > > > > perlbrew install-cpanm
> > > > > perlbrew install-patchperl
> > > >
> > > > It takes a fair amount of installation time and I guess disk space,
> > > > defaults to your home.
> > > >
> > > > Please consult the perlbrew docs for the exact process, this is I think
> > > > the most useful info: https://perlbrew.pl/Perlbrew-and-Friends.html.
> > Once
> > > > you are set, use
> > > >
> > > > > perlbrew switch ...
> > > >
> > > > > cpanm PDL::Graphics::Simple
> > > >
> > > > I guess you may need to install a few dependencies that are either
> > > > ambiguous or simply missing using cpanm from the same shell. I don't
> > > > remember if P:G:S comes with a default backend or if you need to, for
> > > > example, install gnuplot.
> > > >
> > > > I hope this helps.
> > > >
> > > > Ingo
> > > >
> > > > On 8/31/23 10:12, ng0...@gmail.com wrote:
> > > >
> > > > Hello,
> > > >
> > > >
> > > >
> > > > would anyone with a working version mind to post some hints on how to
> > > > achieve:
> > > >
> > > >
> > > >
> > > > cpan PDL::Graphics::Simple
> > > > pdl> use PDL::Graphics::Simple
> > > > pdl> imag (sin(rvals(200,200)+1))
> > > >
> > > >
> > > >
> > > > on no matter on which platform but with the least number of steps?
> > > >
> > > >
> > > >
> > > > Thanks a lot, Thomas
> > > >
> > > >
> > > >
> > > > On Wed, Aug 30, 2023 at 4:51 PM William Schmidt <
> > > > t.william.schm...@gmail.com> wrote:
> > > >
> > > > Hello Thomas (ngO177),
> > > >
> > > >
> > > >
> > > > I encountered a similar problem building PDL 2.083 and 2.084 in macOS
> > > > Monterrey, to wit: getting PDL::Graphics::Simple to work, or even to
> > pass
> > > > its build tests. Rather than repeat the odyssey I went through here I
> > > > suggest you read the write-up I did at perlmonks that documents the
> > build
> > > > debug process:
> > > >
> > > >
> > > >
> > > > https://www.perlmonks.org/?node_id=11153860
> > > >
> > > >
> > > >
> > > > I posted this as open-issue #450 at PDL meta-cpan, but alas, no one
> > from
> > > > PDL dev has, as yet, bothered to read it. In a nutshell, you need a
> > > > graphics engine on your machine and if there isn't one, or PDL can't
> > find
> > > > it, the Alien process (since a graphics engine is defined in PDL-speak
> > as
> > > > an alien process) will find one appropriate to your OS on the net,
> > download
> > > > and build it for you. Alas, for macOS Monterrey, Alien built a crippled
> > > > plotting engine. It failed to un-comment any of the three #ifdef
> > terminal
> > > > definitions that support graphics in macOS. Thus, no terminal def for
> > macOS
> > > > was compiled into gnuplot. The fix, for me, was to rtfm the build docs,
> > > > initialize the environment to point to my preferred graphics engine
> > > > (gnuplot, built by me with macports rather than Alien), and enable
> > > > interactive build tests. To be fair to PDL developers, this is all
> > > > documented in the PDL build instructions and 'man gnuplot', but most
> > of us
> > > > take the ease of building Perl modules for granted and don't bother to
> > read
> > > > them unless something goes wrong. Alien is a brilliant idea but at
> > present
> > > > its execution in PDL is flawed. It attempts to transparently obtain
> > for you
> > > > an appropriate graphics engine but fails to build it correctly. With a
> > > > little hacking you can get around this, I did, but as always, your
> > mileage
> > > > will vary. I would very much like to hear from you after you have
> > read the
> > > > perlmonks post and evaluated my solution in a Linux context. My PDL in
> > > > Monterrey is now working correctly, so I held off trying to build PDL
> > in
> > > > Ubuntu, but if nothing works for you I will give it a try.
> > > >
> > > >
> > > > Regards,
> > > > Will Schmidt (perlboy_emeritus)
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > On Wed, Aug 30, 2023 at 5:22 AM <ng0...@gmail.com> wrote:
> > > >
> > > > Hello,
> > > >
> > > >
> > > >
> > > > in order to take some first steps
> > > >
> > > > cpan PDL::Graphics::Simple
> > > > pdl> use PDL::Graphics::Simple
> > > > pdl> imag (sin(rvals(200,200)+1))
> > > >
> > > >
> > > >
> > > > on Debian 12 w/ experimental repos activated, all I try, see below,
> > fails.
> > > >
> > > >
> > > >
> > > > Any ideas?
> > > >
> > > > Appreciate, Thomas
> > > > pdl
> > > >
> > > > sudo apt -t experimental install *pdl*
> > > >
> > > > sudo apt -t experimental install *pgplot5*
> > > >
> > > > sudo apt -t experimental install *libpgplot-perl*
> > > >
> > > >
> > > >
> > > > sudo apt -t experimental install *libpdl-graphics-gnuplot-perl*
> > > > cpan *graphics simple*
> > > >
> > > > cpan PDL::Graphics::Simple
> > > >
> > > >
> > > >
> > > > ...
> > > >
> > > > Test Summary Report
> > > >
> > > > -------------------
> > > >
> > > > t/simple.t (Wstat: 512 (exited 2) Tests: 24 Failed: 2)
> > > >
> > > > Failed tests: 1, 12
> > > >
> > > > Non-zero exit status: 2
> > > >
> > > > Parse errors: No plan found in TAP output
> > > >
> > > > Files=1, Tests=24, 2 wallclock secs ( 0.01 usr 0.00 sys + 0.26 cusr
> > > > 0.22 csys = 0.49 CPU)
> > > >
> > > > Result: FAIL
> > > >
> > > > Failed 1/1 test programs. 2/24 subtests failed.
> > > >
> > > > make: *** [Makefile:851: test_dynamic] Error 2
> > > >
> > > > ETJ/PDL-Graphics-Simple-1.009.tar.gz
> > > >
> > > > make test -- NOT OK
> > > >
> > > > //hint// to see the cpan-testers results for installing this module,
> > try:
> > > >
> > > > reports ETJ/PDL-Graphics-Simple-1.009.tar.gz
> > > > *dh-make-perl*
> > > >
> > > > https://wiki.debian.org/PerlFAQ
> > > >
> > > > sudo apt -t experimental install *dh-make-perl*
> > > >
> > > >
> > > >
> > > > dh-make-perl --build --cpan PDL::Graphics::Simple
> > > >
> > > >
> > > >
> > > > ...
> > > >
> > > > Test Summary Report
> > > >
> > > > -------------------
> > > >
> > > > t/simple.t (Wstat: 512 (exited 2) Tests: 24 Failed: 2)
> > > >
> > > > Failed tests: 1, 12
> > > >
> > > > Non-zero exit status: 2
> > > >
> > > > Parse errors: No plan found in TAP output
> > > >
> > > > Files=1, Tests=24, 1 wallclock secs ( 0.01 usr 0.00 sys + 0.29 cusr
> > > > 0.21 csys = 0.51 CPU)
> > > >
> > > > Result: FAIL
> > > >
> > > > Failed 1/1 test programs. 2/24 subtests failed.
> > > >
> > > > make[1]: *** [Makefile:854: test_dynamic] Error 2
> > > >
> > > > make[1]: Leaving directory '/home/th6mas/PDL-Graphics-Simple-1.009'
> > > >
> > > > dh_auto_test: error: make -j1 test TEST_VERBOSE=1 returned exit code 2
> > > >
> > > > make: *** [debian/rules:4: build] Error 255
> > > >
> > > > make: Leaving directory '/home/th6mas/PDL-Graphics-Simple-1.009'
> > > >
> > > > Cannot create deb package: 'debian/rules build' failed.
> > > >
> > > >
> > > >
> > > > _______________________________________________
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> > > > pdl-devel@lists.sourceforge.net
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> > > >
> > > >
> > > >
> > > > _______________________________________________
> > > >
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> > > >
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> > > >
> > > > https://lists.sourceforge.net/lists/listinfo/pdl-devel
> > > >
> > > > _______________________________________________
> > > > pdl-devel mailing list
> > > > pdl-devel@lists.sourceforge.net
> > > > https://lists.sourceforge.net/lists/listinfo/pdl-devel
> > > >
> > > >
> > > >
> > > >
> > > >
> >
> >
> > > _______________________________________________
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> >
> >
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