Robust watermarking techniques for authentication of printed copies through digital camera capture

Within the digital processing field, the aim of this thesis is to validate a robust image watermarking method and, afterwards, the authentication of these watermarks when images are printed and captured by a digital camera. This aim is focused to a specific business application: the sale of soccer s...

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Detalles Bibliográficos
Autor: Gavaldà García, Albert
Tipo de recurso: tesis de maestría
Fecha de publicación:2013
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2099.1/17750
Acceso en línea:https://hdl.handle.net/2099.1/17750
Access Level:acceso abierto
Palabra clave:Digital watermarking
Spread spectrum communications
Image processing
Discrete cosine transforms
Watermarking
Spread Spectrum
Image capture
Image Enhancement
Discrete cosine transform
Authentification
Càmeres fotogràfiques digitals
Comunicacions digitals
Imatges -- Processament
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal::Processament de la imatge i del senyal vídeo
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network_acronym_str ES
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repository_id_str
spelling Robust watermarking techniques for authentication of printed copies through digital camera captureGavaldà García, AlbertDigital watermarkingSpread spectrum communicationsImage processingDiscrete cosine transformsWatermarkingSpread SpectrumImage processingImage captureImage EnhancementDiscrete cosine transformAuthentificationCàmeres fotogràfiques digitalsComunicacions digitalsImatges -- ProcessamentÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal::Processament de la imatge i del senyal vídeoWithin the digital processing field, the aim of this thesis is to validate a robust image watermarking method and, afterwards, the authentication of these watermarks when images are printed and captured by a digital camera. This aim is focused to a specific business application: the sale of soccer sticker collections in both virtual and printed versions: printed images with the watermark will be captured by a digital camera of a smart-phone and later processed to detect the watermark. Thus, the purpose of the whole system is to analyze the robustness for uniquely identifying printed copies of those stickers for fan collectors. The work is organized into four chapters. The first chapter shows some concepts about digital watermarking, such as a definition, main properties, a theoretical model and a classification of the types of watermarks. Afterwards, it is presented the selected watermarking technique, how it works and also the advantages and disadvantages of this selection. The second chapter details the algorithms for insertion and detection of invisible watermarks that have been developed, and the implemented routines in a programming language according to these algorithms. These program routines have been developed in MATLAB programming language. The third chapter presents some experimental results and also conclusions extracted from them. The different tests detailed in this chapter may allow a more accurate use of the developed functions and a better knowledge of their behavior under specific possible circumstances. Finally, the last chapter concludes and summarizes the work done in this thesis and gives some suggestions for future work in following studies.Universitat Politècnica de CatalunyaTarrés Ruiz, Francisco20132013-03-0820132013-03-21master thesishttp://purl.org/coar/resource_type/c_bdccNAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/masterThesisapplication/pdfhttps://hdl.handle.net/2099.1/17750reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2099.1/177502026-05-27T15:37:01Z
dc.title.none.fl_str_mv Robust watermarking techniques for authentication of printed copies through digital camera capture
title Robust watermarking techniques for authentication of printed copies through digital camera capture
spellingShingle Robust watermarking techniques for authentication of printed copies through digital camera capture
Gavaldà García, Albert
Digital watermarking
Spread spectrum communications
Image processing
Discrete cosine transforms
Watermarking
Spread Spectrum
Image processing
Image capture
Image Enhancement
Discrete cosine transform
Authentification
Càmeres fotogràfiques digitals
Comunicacions digitals
Imatges -- Processament
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal::Processament de la imatge i del senyal vídeo
title_short Robust watermarking techniques for authentication of printed copies through digital camera capture
title_full Robust watermarking techniques for authentication of printed copies through digital camera capture
title_fullStr Robust watermarking techniques for authentication of printed copies through digital camera capture
title_full_unstemmed Robust watermarking techniques for authentication of printed copies through digital camera capture
title_sort Robust watermarking techniques for authentication of printed copies through digital camera capture
dc.creator.none.fl_str_mv Gavaldà García, Albert
author Gavaldà García, Albert
author_facet Gavaldà García, Albert
author_role author
dc.contributor.none.fl_str_mv Tarrés Ruiz, Francisco
dc.subject.none.fl_str_mv Digital watermarking
Spread spectrum communications
Image processing
Discrete cosine transforms
Watermarking
Spread Spectrum
Image processing
Image capture
Image Enhancement
Discrete cosine transform
Authentification
Càmeres fotogràfiques digitals
Comunicacions digitals
Imatges -- Processament
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal::Processament de la imatge i del senyal vídeo
topic Digital watermarking
Spread spectrum communications
Image processing
Discrete cosine transforms
Watermarking
Spread Spectrum
Image processing
Image capture
Image Enhancement
Discrete cosine transform
Authentification
Càmeres fotogràfiques digitals
Comunicacions digitals
Imatges -- Processament
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal::Processament de la imatge i del senyal vídeo
description Within the digital processing field, the aim of this thesis is to validate a robust image watermarking method and, afterwards, the authentication of these watermarks when images are printed and captured by a digital camera. This aim is focused to a specific business application: the sale of soccer sticker collections in both virtual and printed versions: printed images with the watermark will be captured by a digital camera of a smart-phone and later processed to detect the watermark. Thus, the purpose of the whole system is to analyze the robustness for uniquely identifying printed copies of those stickers for fan collectors. The work is organized into four chapters. The first chapter shows some concepts about digital watermarking, such as a definition, main properties, a theoretical model and a classification of the types of watermarks. Afterwards, it is presented the selected watermarking technique, how it works and also the advantages and disadvantages of this selection. The second chapter details the algorithms for insertion and detection of invisible watermarks that have been developed, and the implemented routines in a programming language according to these algorithms. These program routines have been developed in MATLAB programming language. The third chapter presents some experimental results and also conclusions extracted from them. The different tests detailed in this chapter may allow a more accurate use of the developed functions and a better knowledge of their behavior under specific possible circumstances. Finally, the last chapter concludes and summarizes the work done in this thesis and gives some suggestions for future work in following studies.
publishDate 2013
dc.date.none.fl_str_mv 2013
2013-03-08
2013
2013-03-21
dc.type.none.fl_str_mv master thesis
http://purl.org/coar/resource_type/c_bdcc
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
dc.identifier.none.fl_str_mv https://hdl.handle.net/2099.1/17750
url https://hdl.handle.net/2099.1/17750
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universitat Politècnica de Catalunya
publisher.none.fl_str_mv Universitat Politècnica de Catalunya
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869414746078314496
score 15.301603

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