Decryption code from the image [closed] - image

Question

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Closed 11 years ago.
I have two images: the one and the two.
How do I decode it?

Answer 1

This should get you started in the right direction, its un-tested and may contain syntax errors but should work.
<?PHP
$out = imagecreatetruecolor(400,400);
$in = imagecreatefrompng('questionq.png');
$dest_x = 0;
$dest_y = 0;
$dest_dir = 0;
function setImagePixel($color) {
global $out, $dest_x; $dest_y, $dest_dir;
imagesetpixel($out, $dest_x, $dest_y, $color);
if ($dest_dir == 0) {
if (++$dest_x == 399) {
++dest_y;
$dest_dir = 1;
}
} else {
if (--$dest_x == 0) {
++dest_y;
$dest_dir = 0;
}
}
}
for($count = 400; $count > 0; --$count) {
$offset = 400 - $count;
for($x = $offset; $x < $count ; ++$x) setImagePixel(imagecolorat($in, $x , $offset));
for($y = $offset; $y < $count ; ++$y) setImagePixel(imagecolorat($in, $count , $y ));
for($x = $count; $x > $offset ; --$x) setImagePixel(imagecolorat($in, $x , $count ));
for($y = $count; $y > $offset + 1; --$y) setImagePixel(imagecolorat($in, $offset, $y ));
}
imagepng($out, 'decoded.png');
?>

Answer 2

The correct answer to this puzzle will lead you to a Google Spreadsheet document. Which one that is is the next puzzle.
A little weird is that the decoded image is not easily readable, you first have to apply a "remove each second line" filter on it. Fortunately GIMP comes with such a filter built-in.