in reply to Pure Perl - Crop and Resize Jpeg Files

You should use GD for this. What you're talking about is simple using that library: 
use GD;
$image = GD::Image->new("myimage.jpg");
($width,$height) = $image->getBounds()
$newimage = new GD::Image(100,100);
$newimage = copyResized($image,0,0, 0,0,100,100,$width,$height);
open(IMG, "new.jpg") or die "Can't open output: $!";
binmode IMG;
print IMG $newimage->jpeg;
close IMG;

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Good luck...

Steve

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Re^2: Pure Perl - Crop and Resize Jpeg Files
by Bod (Parson) on May 16, 2021 at 17:42 UTC
    What you're talking about is simple using that library:

    With a bit of fiddling to correct the syntax errors, this code produces a distorted image - not a cropped image.

[reply]

      This version should do better (update: made more idiomatic/terse, it should really do aspect preservation to make a better image instead of translating an unknown aspect to a square)–

      use strictures;
use GD;
use Path::Tiny;

GD::Image->trueColor(1);

my $original_image = GD::Image->new( shift || die "Give an image!\n" )
+;
my $new_image = GD::Image->new(100, 100);

$new_image->copyResampled( $original_image,
                           0, 0, 0, 0,
                           $new_image->getBounds,
                           $original_image->getBounds );

path("new.jpg")->spew_raw($new_image->jpeg);

      [download]

      The changes that make it “right” are GD::Image->trueColor(1) and $newimage->copyResampled instead of copyResized.

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