#!/usr/bin/perl -w
use GD;
# create a new image
my $im = GD::Image->newTrueColor(128,128);
# allocate some colors
$white = $im->colorAllocateAlpha(255,255,255,127);
$black = $im->colorAllocateAlpha(0,0,0,127);
$red = $im->colorAllocateAlpha(255,0,0,127);
$blue = $im->colorAllocateAlpha(0,0,255,127);
# make the background transparent and interlaced
$im->transparent($white);
$im->interlaced(undef);
# Put a black frame around the picture
$im->rectangle(0,0,99,99,$black);
# Draw a blue oval
$im->arc(50,50,95,75,0,360,$blue);
# And fill it with red
$im->fill(50,50,$red);
# make sure we are writing to a binary stream
binmode STDOUT;
# Convert the image to PNG and print it on standard output
print $im->png;