$threshold)
{
imagesetpixel($captcha,$x,$y,255);
}
else
{
imagesetpixel($captcha,$x,$y,0);
$blackPixels[] = array($x,$y);
}
}
}
foreach($blackPixels as $blackPixel)
{
imagesetpixel($captcha,$blackPixel[0]+1,$blackPixel[1]+1,0);
imagesetpixel($captcha,$blackPixel[0],$blackPixel[1]+1,0);
imagesetpixel($captcha,$blackPixel[0],$blackPixel[1]-1,0);
imagesetpixel($captcha,$blackPixel[0]+1,$blackPixel[1],0);
imagesetpixel($captcha,$blackPixel[0]-1,$blackPixel[1],0);
imagesetpixel($captcha,$blackPixel[0]+1,$blackPixel[1]-1,0);
imagesetpixel($captcha,$blackPixel[0]-1,$blackPixel[1]+1,0);
imagesetpixel($captcha,$blackPixel[0]-1,$blackPixel[1]+1,0);
}
$startedCharacter = False;
$highestY = 10000;
$lowestY = 0;
$count = 0;
for($x=0;$x<$width;$x++)
{
$hasBlack = False;
for($y=0;$y<$height;$y++)
{
if(imagecolorat($captcha,$x,$y) == 0)
{
$hasBlack = True;
if($y<$highestY){
$highestY = $y;
}
if($y>$lowestY){
$lowestY = $y;
}
$eax = $y;
if(!$startedCharacter)
{
$data["x1"] = $x;
$data["y1"] = $y;
$startedCharacter = True;
}
}
}
if(($startedCharacter) && (!$hasBlack))
{
$data["x2"] = $x;
$data["y2"] = $eax;
$newWidth = $data["x2"] - $data["x1"];
$newHeight = $lowestY - $highestY;
$croppedLetter = imagecreate($newWidth,$newHeight);
imagecopy($croppedLetter,$captcha,0,0,$data["x1"],$highestY,$width,$newHeight);
$captchas[] = $croppedLetter;
imagepng($croppedLetter,"tmp-$count.png");
//imagerectangle($captcha,$data["x1"],$lowestY,$data["x2"],$highestY,"#FFFFFF");
$startedCharacter = False;
$highestY = 10000;
$lowestY = 0;
$count++;
}
}
$count = 0;
$_SESSION["captchaCount"] = count($captchas);
echo "
";
}
else
{
$arrayLetters = preg_split("//",$_GET["captcha"],-1,PREG_SPLIT_NO_EMPTY);
for($c=0 ; $c< $_SESSION["captchaCount"] ;$c++)
{
@copy("tmp-$c.png","phpbb-captcha/" . $arrayLetters[$c] . ".png");
}
echo "Again";
}
?>