Change to bigger size:
On image search html code, change the captcha size, example:
img src="touring.php?width=70&height=17"
Then change it to :
img src="touring.php?width=90&height=25"
The captcha should bigger with width=90 & height=25
Change the captcha look or make it clearer:
Edit includes/class.touring.php
then search code like this:
for ($i = 0; $i < 20; $i++) {
$tt = rand(5, 70);
$tu = rand(3, 17);
imageline($image, $tu, $tt, $tt, $tu, $this->foreground_color);
}
And this:
for ($i = 0; $i < 20; $i++) {
$tt = rand(1, 70);
$tu = rand(3, 70);
$ts = rand(5, 70);
imageline($image, $ts, 0, $tu, $tt, $this->gid_color);
}
You can play with them or just remove them, it will make captcha clearer.
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