Skip to main content
UploadLanguage (EN)Support
BusinessMobileSocial MediaMarketingTechnologyArt & PhotosCareerDesignEducationPresentations & Public SpeakingGovernment & NonprofitHealthcareInternetLawLeadership & ManagementAutomotiveEngineeringSoftwareRecruiting & HRRetailSalesServicesScienceSmall Business & EntrepreneurshipFoodEnvironmentEconomy & FinanceData & AnalyticsInvestor RelationsSportsSpiritualNews & PoliticsTravelSelf ImprovementReal EstateEntertainment & HumorHealth & MedicineDevices & HardwareLifestyle
Yusuke Wada, profile picture
Uploaded byYusuke Wada
PPT, PDF2,646 views

Miyagawanize

The document describes a "miyagawanize" script that was created to add a "purple thing" to images, in order to be more like the expert Perl coder Tatsuhiko Miyagawa. It explains that the script uses OpenCV, Imager and Image::ObjectDetect modules to detect faces in an image, scale and overlay a purple image on the faces. Example code is provided to detect faces in an input image, process each face by scaling and overlaying the purple image, and writing the output image.

Business◦Technology◦
Download to read offline
miyagawanize Yusukebe YAPC::Asia 2009 Lighting Talk
Tatsuhiko Miyagawa One of Super Geeks! Every Perl Mongers want to write a code like him. But… We can’t be Tatsuhiko. Because we lose the “PURPLE THING” .
PURPLE THING
 
What’s This?? I don’t know what is this purple thing. But we need this to be like Tatsuhiko! So, I made a “miyagawanize” script. Like “geek face generator” by Yappo-san.
How to make “miyagawanize” Make a image of purple thing. Install OpenCV library. Install “Imager” and “Image::ObjectDetect” modules from CPAN. Write a short script. Run a script.
#!/usr/bin/perl use strict; use warnings; use Imager; use Image::ObjectDetect;
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;
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' );
DEMO
Let’s “miyagawanize”, And write a great code! Thanks to Tatsuhiko Miyagawa!!