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izvorni znanstveni rad · 2023

Manipulating pixels in computer graphics by converting raster elements to vector shapes as a function of hue

doc. dr. sc. Maja Rudolf, dr. sc. Tajana Koren Ivančević

Sažetak

This paper proposes a method for changing pixel shape by
converting a CMYK raster image (pixel) to an HSB vector
image, replacing the square cells of the CMYK pixels with
different vector shapes. The replacement of a pixel by the
selected vector shape is done depending on the detected color
values for each pixel. The CMYK values are first converted to
the corresponding RGB values and then to the HSB system, and
the vector shape is selected based on the obtained hue values.
The vector shape is drawn in the defined space, according to the
row and column matrix of the pixels of the original CMYK
image. Twenty-one vector shapes are introduced to replace the
pixels depending on the hue. The pixels of each hue are replaced
by a different shape. The application of this conversion has its
greatest value in the creation of security graphics for printed
documents and the individualization of digital artwork by
creating structured patterns based on the hue.

Ključne riječi

pixel shape hue color systems computer graphics security graphics