Factors Influencing PNG Format Image Size in Case of Linear Geometrical Entities

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F14%3A86095180" target="_blank" >RIV/61989100:27350/14:86095180 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1504/IJIIDS.2014.068343" target="_blank" >http://dx.doi.org/10.1504/IJIIDS.2014.068343</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1504/IJIIDS.2014.068343" target="_blank" >10.1504/IJIIDS.2014.068343</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Factors Influencing PNG Format Image Size in Case of Linear Geometrical Entities

Popis výsledku v původním jazyce

The research is focused on the study of the impact of the number and the pattern of geometrical entities and colour models in map like drawings upon the file size of PNG format. The extended sample set of PNG images was generated by web map services of 15 European servers. Original images were transformed into different colour models of PNG (RGBA, RGB, Palette, interlaced, non-interlaced) and the differences of file sizes were analysed. Main influencing factors are the colour model, image density, sizeof lines, anti-aliasing effect and interlacing. The complexity of map drawings can be approximated by the ratio of foreground pixels in an image. In order to minimise files sizes it is recommended to transform images into appropriate palette models, to avoid anti-aliasing changes of transparency and to prefer wide lines.

Název v anglickém jazyce

Factors Influencing PNG Format Image Size in Case of Linear Geometrical Entities

Popis výsledku anglicky

The research is focused on the study of the impact of the number and the pattern of geometrical entities and colour models in map like drawings upon the file size of PNG format. The extended sample set of PNG images was generated by web map services of 15 European servers. Original images were transformed into different colour models of PNG (RGBA, RGB, Palette, interlaced, non-interlaced) and the differences of file sizes were analysed. Main influencing factors are the colour model, image density, sizeof lines, anti-aliasing effect and interlacing. The complexity of map drawings can be approximated by the ratio of foreground pixels in an image. In order to minimise files sizes it is recommended to transform images into appropriate palette models, to avoid anti-aliasing changes of transparency and to prefer wide lines.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JC - Počítačový hardware a software

OECD FORD obor

—

Projekt

—

Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

International Journal of Intelligent Information and Database Systems

ISSN

1751-5858

e-ISSN

—

Svazek periodika

8

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

15

Strana od-do

375-389

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-84926486536