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  • Perceptual Assesment of Demosaicing Algorithms
    bigger jpg version of it Click on the text links download an archive of the individual images obtained by applying the different demosaicing algorithms Experiment 1 Scene 1 Archive Scene 2 Archive Scene 3 Archive Scene 4 Archive Scene 5 Archive Scene 6 Archive Scene 7 Archive Scene 8 Archive Scene 9 Archive Scene 10 Archive Experiment 2 Scene 1 Archive Scene 3 Archive Scene 4 Archive Scene 5 Archive

    Original URL path: http://color.psych.upenn.edu/depreference/index.html (2016-02-16)
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  • Digital Camera Simulation
    possible to include color plates in the printed chapter we have provided color versions of a number of the figures here Figure 1 4 This shows a color version the hyperspectral image illustrated in Figure 1 4 At each pixel of the hyperspectral image we computed the LMS cone responses We then rendered the LMS image using the basic rendering method described in the chapter and calibration data for an Apple 20 color monitor Fig 1 12 The top image shows a real image obtained with the Kodak DCS 200 color camera Bilinear interpolation was used to demosaic the image No color balancing was applied the RGB camera values are displayed directly The bottom image is a simulation of the top image obtained from high resolution hyperspectral data Fig 1 14 Color version of Figure 1 14 Supplementary Figure The two images on the left side show are close ups extracted from the bottom panel of 1 12 above and illustrate mosaicing artifacts The corrresponding images on the right are for comparison These were generated by simulating a non mosaiced version of the DCS 200 camera Supplementary Figure The figure shows a pictorial summary of Figure 1 19 The left

    Original URL path: http://color.psych.upenn.edu/simchapter/index.html (2016-02-16)
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  • Chromoluminance Pattern Detection
    of chromoluminance patterns on chromoluminance pedestals II Model Vision Research 40 789 803 Download PDF Threshold Data The data are a large set of threshold measurements for detection of Gabor pattern targets presented in the presence of Gabor pattern pedestals Both targets and pedestals were modulated along a number of different lines in color space The methods are described fully in 1 along with a summary of the results and

    Original URL path: http://color.psych.upenn.edu/chromolum/index.html (2016-02-16)
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    Original URL path: http://color.psych.upenn.edu/ERG/JOSA2000.txt (2016-02-16)
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  • Home | David Brainard Lab
    can mimic human performance and in understanding the neural mechanisms of vision Representative Recent Publications See Publications for more or download Brainard s CV in PDF Format Or visit Brainard s Google Scholar Page Spitschan M Datta R Stern A M Brainard D H Aguirre G K 2016 Human visual cortex responses to rapid cone and melanopsin directed flicker Journal of Neuroscience 36 pp 1471 1482 Download PDF Lindsey D T Brown A M Brainard D H Apicella C A 2015 Hunter gatherer color naming provides new insight into the evolution of color terms Current Biology 25 2441 2446 doi 10 1016 j cub 2015 08 006 Download PDF Press coverage Science World Report Medical Daily Phys org Radonjić A Cottaris N P Brainard D H 2015 Color constancy in a naturalistic goal directed task Journal of Vision 15 13 3 http jov arvojournals org article aspx articleid 2436912 doi 10 1167 15 13 3 Spitschan M Jain S Brainard D H Aguirre G K 2014 Opponent melanopsin and S cone signals in the human pupillary light response PNAS 111 43 15568 72 doi 10 1073 pnas 1400942111 Epub 2014 Oct 13 http www pnas org content 111 43 15568

    Original URL path: https://color.psych.upenn.edu/ (2016-02-16)
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  • People | David Brainard Lab
    Publications Links Contact Search Search Search Search People David H Brainard RRL Professor of Psychology Nicolas P Cottaris Senior Scientific Application Developer Ana Radonjić Research Associate James Golden Post Doctoral Fellow Manuel Spitschan Doctoral Student Benjamin Heasly Scientific Programmer Avery

    Original URL path: https://color.psych.upenn.edu/people (2016-02-16)
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  • Links | David Brainard Lab
    at Penn NSF IGERT Program in Complex Scene Perception Software and Resources Psychophysics Toolbox Matlab routines for performing psychophysical experiments and related calculations RenderToolbox3 Matlab routines that support high quality stimulus rendering for psychophysics Computational Eye and Brain Project to computationally instantiate our understanding of early vision ISETBIO Image systems engineering tools for biology BrainardLabToolbox Matlab rouines useful in the Brainard Lab and that might be useful for others Silent

    Original URL path: https://color.psych.upenn.edu/links (2016-02-16)
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  • Contact | David Brainard Lab
    building at the B C wing entrance which is located on Walnut west of the corner of 34th and Walnut The B C wing entrance is right next to an optometrist shop called The Modern Eye Don t use the A wing entrance which is on the corner right next to Starbucks Take the elevator to the third floor As you exit the elevator lobby turn left up a short

    Original URL path: https://color.psych.upenn.edu/contact (2016-02-16)
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