Re^4: How to create and save an image from RGB values

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Re^5: How to create and save an image from RGB values by marioroy (Prior) on Dec 28, 2021 at 12:39 UTC
There is a Mandelbrot folder inside the Imager source tree. It looks like one can specify a filter to Imager. To build, I set the CPATH environment due to unable to find imconfig.h. `$ cpanm Imager $ wget https://cpan.metacpan.org/authors/id/T/TO/TONYC/Imager-1.012.ta +r.gz $ tar xf Imager-1.012.tar.gz && cd Imager-1.012/Mandelbrot $ perl Makefile.PL $ CPATH=~/perl5/perlbrew/perls/perl-5.32.1/lib/site_perl/5.32.1/x86_64 +-linux-thread-multi/Imager/include make $ make install` [download] Running make test inside the Mandelbrot folder fails for me, so I created a script. Rendering and output to PNG takes 0.131 seconds. `use strict; use warnings; use Imager; use Imager::Filter::Mandelbrot; my $im = Imager->new(xsize => 1000, ysize => 1000); $im->filter(type => 'mandelbrot',) or die("# ", $im->errstr, $/); $im->write(file => 'mandel1.png');` [download] The C code calls i_ppix per each pixel.	[reply] [d/l] [select]
Re^6: How to create and save an image from RGB values by bliako (Monsignor) on Dec 28, 2021 at 13:12 UTC
`Rendering and output to PNG takes 0.131 seconds.` that's acceptable (even if `i_ppix` is `setpixel`-like).	[reply] [d/l] [select]
Re^5: How to create and save an image from RGB values by LanX (Saint) on Dec 28, 2021 at 13:47 UTC
We seem to constantly talk past each other. You said you have Image::Magick installed and creating PPM is easy. Hence convert from intermediate PPMs to whatever format you want. This can't be slow and gives you full flexibility. You don't even need to create temporary PPM files since blobs are supported too. Cheers Rolf _{(addicted to the Perl Programming Language :) Wikisyntax for the Monastery}	[reply]


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