September Morn Update

Task/Image-convolution/Perl-6/image-convolution.pl6

@@ -0,0 +1,31 @@
+#!/usr/bin/env perl6
+
+# Reference:
+# https://github.com/azawawi/perl6-magickwand
+# http://www.imagemagick.org/Usage/convolve/
+
+use v6;
+
+use MagickWand;
+
+# A new magic wand
+my $original = MagickWand.new;
+
+# Read an image
+$original.read("./Lenna100.jpg") or die;
+
+my $o = $original.clone;
+
+# using coefficients from kernel "Sobel"
+# http://www.imagemagick.org/Usage/convolve/#sobel
+$o.convolve( [ 1, 0, -1,
+               2, 0, -2,
+               1, 0, -1] );
+
+$o.write("Lenna100-convoluted.jpg") or die;
+
+# And cleanup on exit
+LEAVE {
+  $original.cleanup   if $original.defined;
+  $o.cleanup if $o.defined;
+}