<?php
 
$archivo = fopen("Letras/ocr/7-bfa262e02131320615905fbb91d32d66-charmap.datamap","r"); //Datamap del número 7
$longitud = filesize("Letras/ocr/7-bfa262e02131320615905fbb91d32d66-charmap.datamap");
$archivo = fread($archivo,$longitud);
$archivo = base64_decode(str_rot13($archivo));
$archivo = explode("@",$archivo);
$archivo = substr($archivo[1], 1, strlen($archivo[1]));
$archivo = explode(":",$archivo);
$width = 24;
$height = 25;
$img = imagecreatefromjpeg("ConfirmHandler.jpg");
imagejpeg($img,"captcha.jpg");
$img = limpia($img);
$imgchar = imagecreate($width,$height);
imagecopy($imgchar,$img,1,1,10,8,20,24);
imagejpeg($imgchar,"chr1.jpg");
$datamap1 = creardatamap($imgchar,"noname");
$datamap1 = explode("@",$datamap1);
$datamap1 = substr($datamap1[1], 1, strlen($datamap1[1]));
$datamap1 = explode(":",$datamap1);
$errores = 0;
for($i=0;$i<count($datamap1);$i++){
    if (($archivo[$i]) != ($datamap1[$i])){$errores++;}
}
echo $errores; //El valor me devuelve 648
 
//////////////////////////////FUNCIONES///////////////////////////////////
 
function learnchar($image,$name){
global $width,$height;
$imagen = crearimagenfile($image);
$datamap = str_rot13(base64_encode(creardatamap($imagen,$name)));
guardar($datamap,$name);
echo "Nueva relacion de memoria creada, aprendiendo de $name <br>";
}
 
function guardar($datamap,$name){
$fl = fopen("Letras/ocr/$name-".md5(time()*rand(1,100))."-charmap.datamap","w+");
fwrite($fl,$datamap);
fclose($fl);
}
 
function iniciarsistema(){
learnchar("Letras/A.jpg","A");
learnchar("Letras/B.jpg","B");
learnchar("Letras/C.jpg","C");
learnchar("Letras/D.jpg","D");
learnchar("Letras/E.jpg","E");
learnchar("Letras/F.jpg","F");
learnchar("Letras/0.jpg","0");
learnchar("Letras/1.jpg","1");
learnchar("Letras/2.jpg","2");
learnchar("Letras/3.jpg","3");
learnchar("Letras/4.jpg","4");
learnchar("Letras/5.jpg","5");
learnchar("Letras/6.jpg","6");
learnchar("Letras/7.jpg","7");
learnchar("Letras/8.jpg","8");
learnchar("Letras/9.jpg","9");
unlink("Letras/A.jpg");
unlink("Letras/B.jpg");
unlink("Letras/C.jpg");
unlink("Letras/D.jpg");
unlink("Letras/E.jpg");
unlink("Letras/F.jpg");
unlink("Letras/0.jpg");
unlink("Letras/1.jpg");
unlink("Letras/2.jpg");
unlink("Letras/3.jpg");
unlink("Letras/4.jpg");
unlink("Letras/5.jpg");
unlink("Letras/6.jpg");
unlink("Letras/7.jpg");
unlink("Letras/8.jpg");
unlink("Letras/9.jpg");
rmdir("Letras");
}
 
function limpia($image){
    $w = imagesx($image);
$h = imagesy($image);
for ($x = 0; $x <= $w; $x++){
for ($i = 0; $i <= $h; $i++){
$rgb = imagecolorat($image, $x, $i);
$r = ($rgb >> 16) & 255;
$g = ($rgb >> 8) & 255;
$b = $rgb & 255;
if (($r > 55) || ($g > 55) || ($b > 55)){
imagesetpixel($image, $x, $i, imagecolorallocate($image, 255, 255, 255));
}else{
imagesetpixel($image, $x, $i, imagecolorallocate($image, 0, 0, 0));
}
}
}
return $image;
}
 
function crearimagenfile($img_file){
global $width,$height;
$img=0;
$img_sz = getimagesize( $img_file );
switch( $img_sz[2] ){
case 1:
$img = ImageCreateFromGif($img_file);
break;
case 2:
$img = ImageCreateFromJpeg($img_file);
break;
case 3:
$img = ImageCreateFromPng($img_file);
break;
}
$width = $img_sz[0];
$height = $img_sz[1];
return $img;
}
 
function creardatamap($image,$name){
    global $width,$height;
    $datamap = $name."@";
    for ($x=0; $x<=$width; $x++){
for ($y=0; $y<=$height; $y++){
 $datamap.=":".$x.",".$y.",".pixelcolor($image,$x,$y);
}
}
return $datamap;
}
 
function pixelcolor($im,$x,$y){
    $rgb = imagecolorat($im,$x,$y);
    $r = ($rgb >> 16) & 255;
$g = ($rgb >> 8) & 255;
$b = $rgb & 255;
if (($r > 55) || ($g > 55) || ($b > 55)){
return 0;
}
return 1;
}
 
?>
 

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