Re: [magick-users] Background issue converting .eps to .png

[Anthony Thyssen]

zentara on  wrote...
| On Tue, 21 Oct 2008 12:43:05 -0400
| Michael Stroh <[EMAIL PROTECTED]> wrote:
| 
| 
| >I'm using simple commands like
| >
| >convert lightcurve.eps lightcurve.png
| >
| >Are there any additional things I can try to get the .png file to look  
| >the way I want it to?
| 
| Here is a Perl script that does the conversion, and avoids a temp pdf file
| by using a blob.
| 
| #!/usr/bin/perl
| use warnings;
| use strict;
| use Image::Magick;
| 
| # a shell script equivalent... for comparison
| #convert -resize 99% -density 160x160 -quality 100% -compress Lossless 
lightcurve.eps lightcurve1.pdf
| #convert -quality 100% -compress Lossless lightcurve1.pdf lightcurve1.png
| #convert lightcurve1.png -trim lightcurve2.png
| #convert -bordercolor SkyBlue -border 40x40 lightcurve2.png  lightcurve3.png
| 
| my $img = Image::Magick->new;
| $img->Read('lightcurve.eps');
| $img->Resize('101%');  #needed hack for portrait/landscape conversion
| $img->set('quality'=> 100, );
| $img->set('compresion'=> 'LosslessJPEG' );
| #$img->Write(filename=>'zzimage.pdf'); #works good when written to temp file
| # but using an inline blob here to avoid a temp file
| $img->set('magick'=>'pdf');
| my $blob = $img->ImageToBlob();
| 
| #and the opposite
| my $img1 = Image::Magick->new(magick=>'pdf');
| $img1->BlobToImage( $blob );
| $img1->set('quality'=> 100, );
| $img1->set('compresion'=> 'LosslessJPEG' );
| 
| #add a border
| $img1->Border('bordercolor' => 'SkyBlue','width'=>40,'height'=>40);
| 
| $img1->Write(filename=>'zzzimage.jpg');
| $img1->Write(filename=>'zzzimage.png');
| 
| __END__
| 
Have you actually tried the super-sampling method...

  convert  -density 288  lightcurve.eps  -resize 25%  lightcurve.png


  Anthony Thyssen ( System Programmer )    <[EMAIL PROTECTED]>
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