setDistortion(false) ->build() ; if ($captcha->isOCRReadable()) { $passed++; $captcha->save("passed$passed.jpg"); echo "passed at ocr... "; } else { echo "failed... "; } echo "pass rate: ".round(100*$passed/($i+1),2)."%\n"; } echo "\n"; echo "Over, $passed/$tests readed with OCR\n";