PDL::Image2D 2.4.3

PDL::Image2D is a Perl module that contains miscellaneous 2D image processing functions. For large kernels, using a FFT routine, such as fftconvolve() in PDL::FFT, will be quicker. $new = conv2d $old, $kernel, {OPTIONS} $smoothed = conv2d $image, ones(3,3), {Boundary => Reflect} Boundary - controls what values are assumed for the image when kernel crosses its edge: => Default - periodic boundary conditions (i.e. wrap around axis) => Reflect - reflect at boundary => Truncate - truncate at boundary EOD BadDoc => Unlike the FFT routines, conv2d is able to process bad values., HandleBad => 1, Pars => a(m,n); kern(p,q); [o]b(m,n);, OtherPars => int opt;, PMCode => sub PDL::conv2d { my $opt; $opt = pop @_ if ref($_[$#_]) eq HASH; die Usage: conv2d( a(m,n), kern(p,q), [o]b(m,n), {Options} ) if $#_<1 || $#_>2; my($a,$kern) = @_; my $c = $#_ == 2 ? $_[2] : $a->nullcreate; &PDL::_conv2d_int($a,$kern,$c, (!(defined $opt && exists $$opt{Boundary}))?0: (($$opt{Boundary} eq "Reflect") + 2*($$opt{Boundary} eq "Truncate"))); return $c; } , Code => init_vars( { vars => PDL_Double tmp; } ) . init_map("i") . init_map("j") . threadloop %{ for(j=0; j.

Requirements:	No special requirements
Platforms:	Linux
Keyword:	Boundary,  Fft,  Image,  Image Processing,  Init,  Kern,  Libraries,  Opt,  Pdl,  Perl Module
Users rating:	0/10