An Illustrative Review on Steganography Techniques Using QR Code Images

Saved in:

Bibliographic Details
Main Author:	Harpreet Singh
Format:	Artículo científico
Language:	en
Published:	Perception Publishing 2018
Subjects:	Lengua y Literatura De PSNR Steganography Quick Response Code noising Filters MSE
Online Access:	Acceder al recurso
Tags:	Add Tag No Tags, Be the first to tag this record!

_version_	1866813335184343040
author	Harpreet Singh
author_facet	Harpreet Singh
contents	An Illustrative Review on Steganography Techniques Using QR Code Images Harpreet Singh Lengua y Literatura De PSNR Steganography Quick Response Code noising Filters MSE This review paper concentrates on the concept of QR code steganography and its de-noisingfilters. The goal of this review paper is to explore and analyze QR Code generation, QR codeversions, Steganography techniques and Problems of QR code. In this paper, we presentreview on two challenges of the work i.e. first one is QR code steganography and its majorproblem noise, noise creates a problem to read the QR code, and reduce the readability of QRcode. The literature review is done on QR code steganography technique and filters thatbasically reduce the noise of Image of QR code and as well as performance parameters PSNRand MSE. We have also discussed various Error correction levels of the QR code,steganography techniques and de-noising filters. Error Correction and noise removal fromCover image is challenging task and calculating the PSNR and MSE values for QR Codeimages with different image file format. 2018 artículo científico 2455-6580 https://www.redalyc.org/articulo.oa?id=703876868008 en http://www.redalyc.org/revista.oa?id=7038 The Creative Launcher application/pdf Perception Publishing The Creative Launcher (India) Num.2 Vol.3
format	Artículo científico
id	redalyc_703876868008
language	en
publishDate	2018
publisher	Perception Publishing
spellingShingle	An Illustrative Review on Steganography Techniques Using QR Code Images Harpreet Singh Lengua y Literatura De PSNR Steganography Quick Response Code noising Filters MSE An Illustrative Review on Steganography Techniques Using QR Code Images Harpreet Singh Lengua y Literatura De PSNR Steganography Quick Response Code noising Filters MSE This review paper concentrates on the concept of QR code steganography and its de-noisingfilters. The goal of this review paper is to explore and analyze QR Code generation, QR codeversions, Steganography techniques and Problems of QR code. In this paper, we presentreview on two challenges of the work i.e. first one is QR code steganography and its majorproblem noise, noise creates a problem to read the QR code, and reduce the readability of QRcode. The literature review is done on QR code steganography technique and filters thatbasically reduce the noise of Image of QR code and as well as performance parameters PSNRand MSE. We have also discussed various Error correction levels of the QR code,steganography techniques and de-noising filters. Error Correction and noise removal fromCover image is challenging task and calculating the PSNR and MSE values for QR Codeimages with different image file format. 2018 artículo científico 2455-6580 https://www.redalyc.org/articulo.oa?id=703876868008 en http://www.redalyc.org/revista.oa?id=7038 The Creative Launcher application/pdf Perception Publishing The Creative Launcher (India) Num.2 Vol.3
title	An Illustrative Review on Steganography Techniques Using QR Code Images
topic	Lengua y Literatura De PSNR Steganography Quick Response Code noising Filters MSE
url	https://www.redalyc.org/articulo.oa?id=703876868008

if (filemtime($filename) + $maxlifetime < time()) { unlink($filename); $count++; } } return $count; } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ protected function saveSession($sessId, $data): bool { $sessFile = $this->path . '/sess_' . $sessId; if ($handle = fopen($sessFile, 'w')) { $return = false; // Lock the file for exclusive access to avoid issues with multiple // processes writing session simultaneously: if (flock($handle, LOCK_EX)) { $return = fwrite($handle, $data); // Make sure that there's no trailing data by truncating the file to // the correct length: ftruncate($handle, strlen($data)); fflush($handle); flock($handle, LOCK_UN); } fclose($handle); if ($return !== false) { return true; } } // If we got this far, something went wrong with the file output... // It is tempting to throw an exception here, but this code is called // outside of the context of exception handling, so all we can do is // echo a message.

// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

Environment & details:

GET Data empty

POST Data empty

Files empty

Key	Value
VUFIND_SESSION	"555e176f8af357f9666671a7bf625805"
language	"en"
ui	"standard"

Session

Key	Value
__Laminas	array:2 [`"_REQUEST_ACCESS_TIME" => 1789377190.3005 "_VALID" => array:1 [ "Laminas\Session\Validator\Id" => "555e176f8af357f9666671a7bf625805" ]`]
SessionState	Laminas\Stdlib\ArrayObject {#938}
FlashMessenger	Laminas\Stdlib\ArrayObject {#1455}
SessionHelper	Laminas\Stdlib\ArrayObject {#1785}

Server/Request Data

Key	Value
REDIRECT_VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
REDIRECT_HTTPS	"on"
REDIRECT_SSL_TLS_SNI	"info.umar.mx"
REDIRECT_STATUS	"200"
VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
HTTPS	"on"
SSL_TLS_SNI	"info.umar.mx"
HTTP_ACCEPT	"/"
HTTP_USER_AGENT	"Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
HTTP_COOKIE	"VUFIND_SESSION=555e176f8af357f9666671a7bf625805; language=en; ui=standard"
HTTP_ACCEPT_ENCODING	"gzip, br, zstd, deflate"
HTTP_HOST	"info.umar.mx"
PATH	"/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/snap/bin"
SERVER_SIGNATURE	"<address>Apache/2.4.66 (Ubuntu) Server at info.umar.mx Port 443</address>\n"
SERVER_SOFTWARE	"Apache/2.4.66 (Ubuntu)"
SERVER_NAME	"info.umar.mx"
SERVER_ADDR	"200.23.222.19"
SERVER_PORT	"443"
REMOTE_ADDR	"216.73.216.61"
DOCUMENT_ROOT	"/usr/local/vufind/public"
REQUEST_SCHEME	"https"
CONTEXT_PREFIX	""
CONTEXT_DOCUMENT_ROOT	"/usr/local/vufind/public"
SERVER_ADMIN	"admin@localhost"
SCRIPT_FILENAME	"/usr/local/vufind/public/index.php"
REMOTE_PORT	"37717"
REDIRECT_URL	"/Record/redalyc_703876868008/Details"
GATEWAY_INTERFACE	"CGI/1.1"
SERVER_PROTOCOL	"HTTP/1.1"
REQUEST_METHOD	"GET"
QUERY_STRING	""
REQUEST_URI	"/Record/redalyc_703876868008/Details"
SCRIPT_NAME	"/index.php"
PHP_SELF	"/index.php"
REQUEST_TIME_FLOAT	1789377190.2962
REQUEST_TIME	1789377190

Environment Variables empty

Registered Handlers

0. Whoops\Handler\PrettyPageHandler

Environment & details:

GET Data empty

POST Data empty

Files empty

Key	Value
VUFIND_SESSION	"555e176f8af357f9666671a7bf625805"
language	"en"
ui	"standard"

Session

Key	Value
__Laminas	array:2 [`"_REQUEST_ACCESS_TIME" => 1789377190.3005 "_VALID" => array:1 [ "Laminas\Session\Validator\Id" => "555e176f8af357f9666671a7bf625805" ]`]
SessionState	Laminas\Stdlib\ArrayObject {#938}
FlashMessenger	Laminas\Stdlib\ArrayObject {#1455}
SessionHelper	Laminas\Stdlib\ArrayObject {#1785}

Server/Request Data

Key	Value
REDIRECT_VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
REDIRECT_HTTPS	"on"
REDIRECT_SSL_TLS_SNI	"info.umar.mx"
REDIRECT_STATUS	"200"
VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
HTTPS	"on"
SSL_TLS_SNI	"info.umar.mx"
HTTP_ACCEPT	"/"
HTTP_USER_AGENT	"Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
HTTP_COOKIE	"VUFIND_SESSION=555e176f8af357f9666671a7bf625805; language=en; ui=standard"
HTTP_ACCEPT_ENCODING	"gzip, br, zstd, deflate"
HTTP_HOST	"info.umar.mx"
PATH	"/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/snap/bin"
SERVER_SIGNATURE	"<address>Apache/2.4.66 (Ubuntu) Server at info.umar.mx Port 443</address>\n"
SERVER_SOFTWARE	"Apache/2.4.66 (Ubuntu)"
SERVER_NAME	"info.umar.mx"
SERVER_ADDR	"200.23.222.19"
SERVER_PORT	"443"
REMOTE_ADDR	"216.73.216.61"
DOCUMENT_ROOT	"/usr/local/vufind/public"
REQUEST_SCHEME	"https"
CONTEXT_PREFIX	""
CONTEXT_DOCUMENT_ROOT	"/usr/local/vufind/public"
SERVER_ADMIN	"admin@localhost"
SCRIPT_FILENAME	"/usr/local/vufind/public/index.php"
REMOTE_PORT	"37717"
REDIRECT_URL	"/Record/redalyc_703876868008/Details"
GATEWAY_INTERFACE	"CGI/1.1"
SERVER_PROTOCOL	"HTTP/1.1"
REQUEST_METHOD	"GET"
QUERY_STRING	""
REQUEST_URI	"/Record/redalyc_703876868008/Details"
SCRIPT_NAME	"/index.php"
PHP_SELF	"/index.php"
REQUEST_TIME_FLOAT	1789377190.2962
REQUEST_TIME	1789377190

Environment Variables empty

Registered Handlers

0. Whoops\Handler\PrettyPageHandler

Similar Items

Environment & details:

Environment & details: