1. miyagawanize Yusukebe YAPC::Asia 2009 Lighting Talk

3. PURPLE THING

7. #!/usr/bin/perl use strict; use warnings; use Imager; use Image::ObjectDetect;

8. my $file = shift or die "image file path is required!"; my $image = Imager->new->read( file => $file ); my $cascade = './haarcascade_frontalface_alt2.xml'; my $detector = Image::ObjectDetect->new($cascade); my @faces = $detector->detect($file); my $purple_source = Imager->new->read(file => './purple.png'); my $aspect = 1.5;

9. for my $face (@faces) { my $purple = $purple_source->scale( xpixels => $face->{width} / $aspect, ypixels => $face->{height} / $aspect, ); $image->rubthrough( tx => $face->{width} / $aspect / 2 + $face->{x}, ty => $face->{height} / $aspect + $face->{y}, src => $purple, ); } $image->write( file => './output.jpg' );

10. DEMO

11. Let’s “miyagawanize”, And write a great code! Thanks to Tatsuhiko Miyagawa!!