Evaluation of color grading impact in restoration process of archive films

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61384984%3A51310%2F16%3AN0000055" target="_blank" >RIV/61384984:51310/16:N0000055 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1117/12.2237558" target="_blank" >http://dx.doi.org/10.1117/12.2237558</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2237558" target="_blank" >10.1117/12.2237558</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evaluation of color grading impact in restoration process of archive films

Popis výsledku v původním jazyce

Color grading of archive films is a very particular task in the process of their restoration. The ultimate goal of color grading here is to achieve the same look of the movie as intended at the time of its first presentation. The role of the expert restorer, expert group and a digital colorist in this complicated process is to find the optimal settings of the digital color grading system so that the resulting image look is as close as possible to the estimate of the original reference release print adjusted by the expert group of cinematographers. A methodology for subjective assessment of perceived differences between the outcomes of color grading is introduced, and results of a subjective study are presented. Techniques for objective assessment of perceived differences are discussed, and their performance is evaluated using ground truth obtained from the subjective experiment. In particular, a solution based on calibrated digital single-lens reflex camera and subsequent analysis of image features captured from the projection screen is described. The system based on our previous work is further developed so that it can be used for the analysis of projected images. It allows assessing color differences in these images and predict their impact on the perceived difference in image look. "997121-1"-"997121-18"

Název v anglickém jazyce

Evaluation of color grading impact in restoration process of archive films

Popis výsledku anglicky

Color grading of archive films is a very particular task in the process of their restoration. The ultimate goal of color grading here is to achieve the same look of the movie as intended at the time of its first presentation. The role of the expert restorer, expert group and a digital colorist in this complicated process is to find the optimal settings of the digital color grading system so that the resulting image look is as close as possible to the estimate of the original reference release print adjusted by the expert group of cinematographers. A methodology for subjective assessment of perceived differences between the outcomes of color grading is introduced, and results of a subjective study are presented. Techniques for objective assessment of perceived differences are discussed, and their performance is evaluated using ground truth obtained from the subjective experiment. In particular, a solution based on calibrated digital single-lens reflex camera and subsequent analysis of image features captured from the projection screen is described. The system based on our previous work is further developed so that it can be used for the analysis of projected images. It allows assessing color differences in these images and predict their impact on the perceived difference in image look. "997121-1"-"997121-18"

Druh

D - Stať ve sborníku

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

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Projekt

<a href="/cs/project/DF13P01OVV006" target="_blank" >DF13P01OVV006: METODIKY DIGITALIZACE NÁRODNÍHO FILMOVÉHO FONDU. Metodiky hodnocení kvality filmového obrazu z pohledu zrakového vjemu diváka s cílem vytvoření rovnocenné restaurované digitální kopie v porovnání s mateřskými archivními filmovými obrazovými zdroji.</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název statě ve sborníku

Applications of Digital Image Processing XXXIX

ISBN

978-151060333-2

ISSN

0277-786X

e-ISSN

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Počet stran výsledku

18

Strana od-do

997121-1 – 997121-18

Název nakladatele

SPIE

Místo vydání

Bellingham

Místo konání akce

San Diego, California

Datum konání akce

29. 8. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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