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master's thesis
Mobilna aplikacija za digitalizaciju dokumenata za Windows Phone platformu
2015. urn:nbn:hr:200:797181
Jelić, Andrej
Josip Juraj Strossmayer University of Osijek
Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
Department of Software Engineering
Chair of Visual Computing

Cite this document

Jelić, A. (2015). Mobilna aplikacija za digitalizaciju dokumenata za Windows Phone platformu (Master's thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek. Retrieved from https://urn.nsk.hr/urn:nbn:hr:200:797181

Jelić, Andrej. "Mobilna aplikacija za digitalizaciju dokumenata za Windows Phone platformu." Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2015. https://urn.nsk.hr/urn:nbn:hr:200:797181

Jelić, Andrej. "Mobilna aplikacija za digitalizaciju dokumenata za Windows Phone platformu." Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2015. https://urn.nsk.hr/urn:nbn:hr:200:797181

Jelić, A. (2015). 'Mobilna aplikacija za digitalizaciju dokumenata za Windows Phone platformu', Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, accessed 16 February 2025, https://urn.nsk.hr/urn:nbn:hr:200:797181

Jelić A. Mobilna aplikacija za digitalizaciju dokumenata za Windows Phone platformu [Master's thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek; 2015 [cited 2025 February 16] Available at: https://urn.nsk.hr/urn:nbn:hr:200:797181

A. Jelić, "Mobilna aplikacija za digitalizaciju dokumenata za Windows Phone platformu", Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, Osijek, 2015. Available at: https://urn.nsk.hr/urn:nbn:hr:200:797181

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Metadata
TitleMobilna aplikacija za digitalizaciju dokumenata za Windows Phone platformu
Title (english)Mobile application for document digitalisation on Windows Phone platform
AuthorAndrej Jelić
MentorIrena Galić (mentor)
MentorHrvoje Leventić (mentor)
Committee memberIrena Galić (predsjednik povjerenstva)
Committee memberKrešimir Nenadić (član povjerenstva)
Committee memberHrvoje Leventić (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
(Department of Software Engineering)
(Chair of Visual Computing)
Osijek
Defense date and country2015-10-12, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Computing
Program Engineering
Abstract
U ovom radu naglasak je bio na Windows Phone 8.1 mobilnim aplikacijama pa je tako kao rezultat nastala aplikacija za digitalizaciju dokumenata imena PicScan koristeći razvojno okruženje Windows Phone SDK implementirano u Microsoft Visual Studio 2013. Programski jezici koji se koriste su C# za pozadinski dio aplikacije, XAML za korisničko sučelje, te EMGU CV matematičke funkcije za obradu slike. Aplikacija će sliku uslikanu stražnjom kamerom pametnog telefona matematički obraditi, pronaći dokument oblika pravokutnika na istoj, označiti ga i izrezati, te prikazati u punoj veličini izvorne slike. Kako bi to bilo moguće, potrebno joj je povećati kvalitetu koristeći pyrDown funkciju uzorkovanja, te konvertirati sve boje u sivu, nakon čega se može primijeniti funkcija Canny koja će pomoću Canny detektora rubova pronaći sve rubove na slici. Za izbor korisnih rubova poziva se HoughLinesP funkcija koja će ostaviti samo ravne linije koje će se dalje moći prepoznati kao konture s četiri točke i pravim kutevima, odnosno pravokutnici. Za kraj se označeni pravokutnici izrezuju i prikazuju u veličini izvorne slike.
Abstract (english)
An emphasis of this master thesis was on Windows Phone 8.1 mobile applications therefore the application for digitalization of documents named PicScan was created as a result. The development was made using integrated development environment Windows Phone SDK integrated in Microsoft Visual Studio 2013 which enables the development of Windows Phone mobile applications with C# and XAML programming languages, along with EMGU CV mathematical functions for image processing. The application task will be to process the picture taken by the rear camera of a smartphone in a way that it will search for a document in the shape of a rectangle on an picture and when found, rectangle will be marked, cut and shown in the size initial picture was. For that to be possible, quality of a picture has to be raised using pyrDown function of downsampling. The given image should then be converted to grey, before the appliance of Canny algorithm to find the edges on the picture using Canny edge detector. To pick out useful edges, shapped as straight lines and further used to detect contours, use of HoughLinesP algorithm is necessary. Only those contours with four points will be further processed to check whether they are rectangles. If so, they will be marked, cut, and have their perspective transformed so they fit the size of the initial picture.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:200:797181
Study programmeTitle: Graduate University Study Programme in Computer Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka računarstva (magistar/magistra inženjer/inženjerka računarstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2016-06-14 08:01:31