Steganografske metode za skrivanje informacija u komprimiranim slikama

master's thesis

• Title (english): Steganographic methods for data hiding in compressed images
• Author: Helena Jurela
• Mentor: Tomislav Hrkać (mentor)
• Committee member: Tomislav Hrkać (predsjednik povjerenstva)
• Committee member: Ante Đerek (član povjerenstva)
• Committee member: Željka Mihajlović (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2024-09-17, Croatia

Abstract

Steganografija je postupak skrivanja podataka unutar nekih drugim podataka. U ovom radu istražene su steganografske metode umetanja podataka u JPEG slike. JPEG je često korišten postupak kompresije slika koji koristi kompresiju s gubitkom baziranu na diskretnoj kosinusnoj transformaciji. Opisan je postupak JPEG kompresije te nekoliko steganografskih metoda za JPEG slike, a poseban naglasak stavljen je na F5 metodu. U okviru rada, implementirana je inačica navedene F5 metode.

Abstract (english)

Steganography is the process of hiding data within other data. In this paper, steganographic methods of inserting data into JPEG images are explored. JPEG is a commonly used image compression technique that employs lossy compression based on the discrete cosine transform. The process of JPEG compression and several steganography methods for JPEG images are described in this paper, with special emphasis placed on the F5 method. As part of the work, a version of the F5 method was implemented.

• Keywords: steganografija; F5 metoda; slikovna steganografija; JPEG kompresija
• Keywords (english): steganography; F5 method; image steganography; JPEG compression
• Language: croatian
• URN:NBN: urn:nbn:hr:168:480097
• Study programme: Title: Computing; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka računarstva (magistar/magistra inženjer/inženjerka računarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2024-10-12 20:58:50