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use strict;use warnings;use Imager;my $file = doya.jpg;my $image = Imager->new( file => $file ) or die Imager->errstr;$ima...
...;my $image = Imager->new( file => $file ) or die Imager->errstr;$image = $image->scale( xpixels => 100 );$image = $imag...
sub get_map {    my $gamma = shift;    my @map =          map { int( 0.5 + 255 * ( $_ / 255 )**$gamma ) } 0 .. 255;    ret...
...;my $font = Imager::Font->new( file => HiraKakuPro-W3.ttf );...;
...;       my $qrcode = Imager::QRCode->new(           size          => 3,           margin        => 0,           version...
ff
...;       my $diff = $org->difference( other => $numbers[$n] );       $diff = $diff->to_rgb8;       my $count;       for ...
use Imager;use Image::ObjectDetect;my   $image      =   Imager->new->read( file => picture.jpg );my   $cascade    =   ./ha...
•    –    –•    –    –
••    –        •    –        ••    –        •        •        •
use Acme::Porn::JP;…;my $porn = Acme::Porn::JP->new;my $actress_list = $porn->actress();for my $actress ( @$actress_list )...
••    –    –••    –•        positive.dat        [filename]	  [#	  of	  objects]	  [[x	  y	  width	  height]	  [...	  2nd	 ...
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
画像Hacks
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画像Hacks

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YAPC::Asia 2011 by yusukebe

Published in: Technology, Art & Photos
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Transcript of "画像Hacks"

  1. 1. use strict;use warnings;use Imager;my $file = doya.jpg;my $image = Imager->new( file => $file ) or die Imager->errstr;$image = $image->scale( xpixels => 100 );$image->write( file => out.jpg ) or die $image->errstr;
  2. 2. ...;my $image = Imager->new( file => $file ) or die Imager->errstr;$image = $image->scale( xpixels => 100 );$image = $image->crop( height => 100 ); #$image->write( file => out.jpg ) or die $image->errstr;...;
  3. 3. sub get_map { my $gamma = shift; my @map = map { int( 0.5 + 255 * ( $_ / 255 )**$gamma ) } 0 .. 255; return @map;}$image->map( red => get_map(0.5), green => get_map(0.65), blue => get_map(0.8));my $waku = Imager->new( file => waku.png );$image->rubthrough( src => $waku );
  4. 4. ...;my $font = Imager::Font->new( file => HiraKakuPro-W3.ttf );...;
  5. 5. ...; my $qrcode = Imager::QRCode->new( size => 3, margin => 0, version => 1, level => M, casesensitive => 1, lightcolor => Imager::Color->new( 255, 255, 255 ), darkcolor => Imager::Color->new( 35, 54, 92 ), ); my $qr = $qrcode->plot( $text ); $qr = $qr->scale( xpixels => 90 ); $image = $image->paste( left => 590, top => 198, src => $qr );...;
  6. 6.
  7. 7. ...; my $diff = $org->difference( other => $numbers[$n] ); $diff = $diff->to_rgb8; my $count; for ( my $x = 0 ; $x < $width ; $x++ ) { for ( my $y = 0 ; $y < 38 ; $y++ ) { my $pixel = $diff->getpixel( x => $x, y => $y ); next unless $pixel; my $result = $pixel->rgba; $count++ if $result == 255; } }...;
  8. 8. use Imager;use Image::ObjectDetect;my $image = Imager->new->read( file => picture.jpg );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;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 );
  9. 9. • – –• – –
  10. 10. •• – • – •• – • • •
  11. 11. use Acme::Porn::JP;…;my $porn = Acme::Porn::JP->new;my $actress_list = $porn->actress();for my $actress ( @$actress_list ){ search("$query $actress”);}…;$ perl -MAcme::Porn::JP -e $p = Ace::Porn::JP->new; printscalar @{$p->actress};’4502
  12. 12. •• – –•• –• positive.dat [filename]  [#  of  objects]  [[x  y  width  height]  [...  2nd  object]  ...] images/01.jpg  1  140  100  45  45 nega%ve.dat images/neg-­‐01.jpg images/neg-­‐02.jpg
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