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Script: createImage.pl
createImage.pl can be used to create simple images from the command line.
For example
createImage.pl -width=300 -height=150 -red=20 -green=40 -blue=200
creates an 300x150 px image with an RGB background of #1428c8.
The name of the image is determined by its parameters. The example above would create img_300x150_20_40_200.png.
use warnings;
use strict;
use GD;
use Getopt::Long;
my $width = 1;
my $height = 1;
my $bgColor_r = 255;
my $bgColor_g = 255;
my $bgColor_b = 255;
my $bgAlpha = 0; # 0 .. 127
die unless GetOptions (
'width=i' => \$width,
'height=i' => \$height,
'red=i' => \$bgColor_r,
'green=i' => \$bgColor_g,
'blue=i' => \$bgColor_b,
'alpha=i' => \$bgAlpha
);
my $image = new GD::Image($width, $height);
my $bgColor = $image->colorAllocateAlpha($bgColor_r, $bgColor_g, $bgColor_b, $bgAlpha);
$image -> fill(0, 0, $bgColor);
my $filename = "img_${width}x${height}_${bgColor_r}_${bgColor_g}_${bgColor_b}_${bgAlpha}.png";
open my $out, '>', $filename;
binmode $out;
print $out $image->png;
close $out;