Post-Post-Modern Photography: Capture-Time Perceptual Matching For More Faithful Photographs

Rachel Albert and Alexei (Alyosha) Efros

EECS Department
University of California, Berkeley
Technical Report No. UCB/EECS-2016-167
November 28, 2016

http://www2.eecs.berkeley.edu/Pubs/TechRpts/2016/EECS-2016-167.pdf

Perceived color and lightness are ephemeral qualities dependent on many psychological factors which are difficult to measure, yet photographers know immediately from the preview image if the captured photograph does not match their perception of the scene. However, by the time the photographer processes the photograph at home this information has already been lost. We bring the user back into the loop at the time of capture by allowing them to quickly adjust color and lightness in situ to achieve a better match between the captured image and the perceived scene. To this end we present a simple image capture and editing system designed to assist photographers in obtaining more perceptually accurate representations of photographed scenes, as well as a psychophysical validation of our in situ method. User testing of our application in a variety of real-world lighting environments indicated a significant improvement in the validity of the captured image both within and across subjects.

Advisor: Alexei (Alyosha) Efros


BibTeX citation:

@mastersthesis{Albert:EECS-2016-167,
    Author = {Albert, Rachel and Efros, Alexei (Alyosha)},
    Title = {Post-Post-Modern Photography: Capture-Time Perceptual Matching For More Faithful Photographs},
    School = {EECS Department, University of California, Berkeley},
    Year = {2016},
    Month = {Nov},
    URL = {http://www2.eecs.berkeley.edu/Pubs/TechRpts/2016/EECS-2016-167.html},
    Number = {UCB/EECS-2016-167},
    Abstract = {Perceived color and lightness are ephemeral qualities dependent on many psychological factors which are difficult to measure, yet photographers know immediately from the preview image if the captured photograph does not match their perception of the scene. However, by the time the photographer processes the photograph at home this information has already been lost. We bring the user back into the loop at the time of capture by allowing them to quickly adjust color and lightness <i>in situ</i> to achieve a better match between the captured image and the perceived scene. To this end we present a simple image capture and editing system designed to assist photographers in obtaining more perceptually accurate representations of photographed scenes, as well as a psychophysical validation of our <i>in situ</i> method. User testing of our application in a variety of real-world lighting environments indicated a significant improvement in the validity of the captured image both within and across subjects.}
}

EndNote citation:

%0 Thesis
%A Albert, Rachel
%A Efros, Alexei (Alyosha)
%T Post-Post-Modern Photography: Capture-Time Perceptual Matching For More Faithful Photographs
%I EECS Department, University of California, Berkeley
%D 2016
%8 November 28
%@ UCB/EECS-2016-167
%U http://www2.eecs.berkeley.edu/Pubs/TechRpts/2016/EECS-2016-167.html
%F Albert:EECS-2016-167