I am (was) having some (inconsistent) problems with Image::Magick and creating new sizes of images.

My main problem today, however, is that the code has started working correctly, without any errors. When I left last night, the script below was creating 4 files: 'image_original.bmp', 'image_main.bmp', 'image_thumb.bmp-0' and 'image_thumb.bmp-1'.

Having created this script to illustrate my problems, I was about to post it on here asking: "Why is it creating 2 thumb nails?" - but now I would also like to know "Why is it not?".

#!/usr/bin/perl

use strict;
use warnings;

use Image::Magick;
use Image::Info qw(image_info);
use IO::File;
use CGI qw(:standard);
use File::Basename;

use Data::Dumper;

unless( param('submit') )
{
  print <<HTML;
Content-type: text/html

<html>
<head><title>Image Magick Resize / Copy Test</title></head>
<body>
<form name="form1" method="POST" enctype="multipart/form-data">
<input type="file" name="image_file" />
<input type="submit" name="submit" value="submit"/>
</form>
</body>
</html>
HTML
  exit;
}

my $filename = param('image_file');

my $cgi = new CGI;
my $fh  = $cgi->upload('image_file');

my $outfile = new IO::File;
my $buffer;

# open the pipe to the output file
open ($outfile,">/tmp/someimage") or die( "Could not write file: $!" )
+;
while (my $bytesread=read($fh, $buffer, 1024)) {
    print $outfile $buffer;
}
close $outfile;

my $info      = image_info("/tmp/someimage");
my $extension = $info->{file_ext};

# now create a file with the proper extension, and zap the original
rename( "/tmp/someimage", 
        "/tmp/image_original".".$extension");

{
  my $oImageMagick = Image::Magick->new;
  $oImageMagick->Read("/tmp/image_original".".$extension");

  my $img_width  = $oImageMagick->Get('columns');
  my $img_height = $oImageMagick->Get('rows');

  my $longest  = $img_width>=$img_height? $img_width:$img_height;

  my $ratio_main = 600 / $longest;

  $oImageMagick->Resize(width=>$img_width * $ratio_main, height=>$img_
+height * $ratio_main);
  $oImageMagick->Write('/tmp/image_main'.".$extension");
}
{
  my $oImageMagick = Image::Magick->new;
  $oImageMagick->Read("/tmp/image_original".".$extension");

  my $img_width  = $oImageMagick->Get('columns');
  my $img_height = $oImageMagick->Get('rows');

  my $longest  = $img_width>=$img_height? $img_width:$img_height;
  my $ratio_thumb = 200 / $longest;

  $oImageMagick->Resize(width=>$img_width * $ratio_thumb, height=>$img
+_height * $ratio_thumb);
  $oImageMagick->Write('/tmp/image_thumb'.".$extension");
}

print "Content-type: text/html\n\n";
print "File uploaded\n";

[download]

-=( Graq )=-

In reply to Duplicate Images with Image::Magick Resize by graq

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