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  1. #1
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    code PHP <solving captcha>

    PHP Code:
    <?php

    09    
    function imageconverttruecolor(&$image)
    10    {
    11        $width=imagesx($image);$height=imagesy($image);
    12        $final=imagecreatetruecolor($width$height);
    13        imagecopy($final$image0000$width$height);
    14        imagedestroy($image);
    15        $image $final;
    16    }
    17    $background imagecreatefrompng('captcha.png');
    18    $lettersimg imagecreatefrompng('letters.png');
    19    $captcha    imagecreatefrompng('captcha_search.png');
    20    imageconverttruecolor($background);
    21    imageconverttruecolor($lettersimg);
    22    imageconverttruecolor($captcha);
    23    define('x',imagesx($captcha));
    24    define('y',imagesy($captcha));
    25    $pixels = array();
    26    for($x 0x>$x; ++$x){
    27        for($y 0y>$y; ++$y){
    28            $s=imagecolorat($background$x$y);
    29            if($s&&$s==imagecolorat($captcha$x$y))
    30                 $pixels[$x][$y]=0xFFFFFF;
    31            else $pixels[$x][$y]=0x000000;
    32        }}
    33    imagedestroy($background);
    34    for($p 03>$p; ++$p){
    35        for($x 03>$x; ++$x){
    36            for($y=0;y>$y;++$y){
    37                $filterpixel=1;
    38                settype($filterpixel,'boolean');
    39                if(!$pixels[$x-1][$y-1]&&!$pixels[$x][$y-1]&&!$pixels[$x+1][$y-1]) $filterpixel 0// top
    40                if(!$pixels[$x+1][$y-1]&&!$pixels[$x+1][$y]&&!$pixels[$x+1][$y+1]) $filterpixel 0// right
    41                if(!$pixels[$x-1][$y+1]&&!$pixels[$x][$y+1]&&!$pixels[$x+1][$y+1]) $filterpixel 0// bottom
    42                if(!$pixels[$x-1][$y-1]&&!$pixels[$x-1][$y]&&!$pixels[$x-1][$y+1]) $filterpixel 0// left
    43                if($filterpixel$pixels[$x][$y] = 0xFFFFFF;
    44            }}}
    45    for($x=0x>$x; ++$x){
    46        $pixels[$x][0] = 0xFFFFFF;
    47        $pixels[$x][1] = 0xFFFFFF;
    48        $pixels[$x][1] = 0xFFFFFF;
    49        $pixels[$x][2] = 0xFFFFFF;
    50    }
    51    for($y=0y>$y;++$y){
    52        $pixels[0][$y] = 0xFFFFFF;
    53        $pixels[1][$y] = 0xFFFFFF;
    54        $pixels[x-1][$y] = 0xFFFFFF;
    55        $pixels[x-2][$y] = 0xFFFFFF;
    56    }
    57    for($x=50;54>$x;++$x){
    58        for($y=2$y 5; ++$y){
    59            $pixels[$x][$y] = 0xFFFFFF;
    60    }}


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  2. #2
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    where i can set this code ???


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