Re: Creating Tiff's from perl

in reply to Creating Tiff's from perl

Crazy as this sounds, I had to to almost the exact same thing recently. I too used Imager. Not only did my images need text in exact locations, but they also needed certain markings, etc. Here's how I did it:

First create a tiff of the desired size with any needed markings, at 600 dpi and black and white mode.

In perl, use Imager to open that image, create a font, and then write to it in the specified coordinates. Something like:

my $img = Imager->new();
$img->open( file => '/path/to/tiff/file' );
my $color = Imager::Color->new("#000000");
my $font = Imager::Font->new(
    file    => '/path/to/ttf/font',
    color   => $color,
);
$img->string(
  text    => $stuff_to_write,
  x       => $x,
  y       => $y,
  font    => $font,
);
[download]

My project also had the requirement that each letter of each word need to be in a certain place, so I just had a wrapper sub that would take a word and the x/y coords, split the word into individual letters and then use a 'spacing' var to increment the x value and print each letter one by one.

HTH

-- More people are killed every year by pigs than by sharks, which shows you how good we are at evaluating risk. -- Bruce Schneier

Comment on Re: Creating Tiff's from perl Download Code

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Re^2: Creating Tiff's from perl by JediWizard (Deacon) on Jul 11, 2005 at 15:44 UTC
Thank you for you advice. This code does come closer to what I want, but not quite there yet. Even with a one bit input image, with Group4 fax compression, the outputed image becomes 8 bit, without compression. They say that time changes things, but you actually have to change them yourself. —Andy Warhol	[reply] [d/l]
Re^3: Creating Tiff's from perl by mpeters (Chaplain) on Jul 11, 2005 at 16:32 UTC
I'm sorry, I forgot to show how to write out the image, silly me! `$img->write( { file => $tmp->filename, type => 'tiff', class => 'fax', } );` [download] And then in order to get the Group4 compression I did resort to ImageMagick's convert util. `system("convert -page Letter -compress Group4 $filename $filename") +;` [download] The last part I'm still not completely happy with, but since this is a batch process I didn't have to worry so much about having the extra system call. -- More people are killed every year by pigs than by sharks, which shows you how good we are at evaluating risk. -- Bruce Schneier	[reply] [d/l] [select]

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