Naslov
Pixel Manipulation in Security Graphics

Autori
Stanić Loknar, Nikolina ; Rudolf, Maja ; Turčić, Maja

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
11th International design conference: Design 2010 / Žiljak, Vilko ; Milčić, Diana - Zagreb : Grafički fakultet Sveučilišta u Zagrebu, 2010, 1947-1952

ISBN
978-953-7738-08-2

Skup
11th International Design Conference Design 2010

Mjesto i datum
Dubrovnik, Hrvatska, 17.05.2010. - 20.05.2010

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
pixel deformation; security graphics

Sažetak
In our research we affect the smallest pictorial element – the pixel in order to enhance security graphics solutions. We created new programming routines that define the appearance of pixels. The general opinion is that pixels are in the shape of squares. Postscript programming language gives us options to affect the shape of pixels so that they become rectangles or parallelograms. The existing picture manipulating programs give no such options for manipulating pixels, so it becomes harder to falsify documents. Postscript defines an image through a sequence of numbers and the postscript interpreter renders it starting from the top left corner, moving horizontally creating line by line and ending with the bottom right corner. Picture display, either on the monitor or printer, seeks data about number of pixels in a row, number of columns, size of the pixel and the position of the image on a page. All these parameters we influenced by stochastic congruence methods. We created new security design solutions that can be applied in security graphics.

Izvorni jezik
Engleski

Znanstvena područja
Grafička tehnologija

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