The document shows code for processing images using the Imager module in Perl. It demonstrates scaling, cropping, mapping color values, combining images using rubthrough, adding text with QR codes, detecting differences between images, and detecting faces in an image using a cascade classifier. It also includes code to search for adult video actresses from a porn module.

5. 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;

6. ...;
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;
...;

11. 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 );

20. ...;
my $font = Imager::Font->new( file => 'HiraKakuPro-W3.ttf' );
...;

21. ...;
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 );
...;

25. ff

26. ...;
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;
}
}
...;

32. 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' );

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42. 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 '$p = Ace::Porn::JP->new; print
scalar @{$p->actress};’
4502

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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