Sciweavers

IMAGING
2004
13 years 6 months ago
Measuring the Relationship between Perceived Image Contrast and Surround Illumination
While an image's relative surround luminance increases from dark to light, the perceived contrast of the image will increase. For this reason, projected transparencies are ma...
Changmeng Liu, Mark D. Fairchild
IMAGING
2004
13 years 6 months ago
Maintaining an Accurate Printer Characterization
In this study, the problem of updating a printer characterization in response to systematic changes in print-device characteristics is addressed with two distinct approaches: the ...
David Littlewood, Ganesh Subbarayan
IMAGING
2004
13 years 6 months ago
Testing HDR Image Rendering Algorithms
Eight high-dynamic-range image rendering algorithms were tested using ten high-dynamic-range pictorial images. A large-scale paired comparison psychophysical experiment was develo...
Jiangtao Kuang, Hiroshi Yamaguchi, Garrett M. John...
IMAGING
2004
13 years 6 months ago
Analysis of Spatio-chromatic Decorrelation for Colour Image Reconstruction
We investigate the implications of a unified spatiochromatic basis for image compression and reconstruction. Different adaptive and general methods (PCA, ICA, and DCT) are applied...
Mark S. Drew, Steven Bergner
IMAGING
2004
13 years 6 months ago
Failure of Luminance-Redness Correlation for Illuminant Estimation
We investigate the hypothesis, recently published in Nature, that the human visual system may use some sort of luminance-redness correlation2 together with the scene average for i...
Florian Ciurea, Brian V. Funt
IMAGING
2004
13 years 6 months ago
Validation of Color Managed 3D Appearance Acquisition
Image-based appearance acquisition algorithms are able to generate realistic 3D models of real objects but have previously not taken care of calibrated color space. We integrate a...
Michael Goesele, Hendrik P. A. Lensch, Hans-Peter ...
IMAGING
2004
13 years 6 months ago
Extending Printing Color Gamut by Optimizing the Spectral Reflectance of Inks
A computer simulation was performed to investigate the optimum combinations of three- and four-chromatic inks in order to maximize the color gamut for halftone printing. A virtual...
Yongda Chen, Roy S. Berns, Lawrence A. Taplin
IMAGING
2004
13 years 6 months ago
Estimating Illumination Chromaticity via Support Vector Regression
The technique of support vector regression is applied to the problem of estimating the chromaticity of the light illuminating a scene from a color histogram of an image of the sce...
Brian V. Funt, Weihua Xiong
IMAGING
2004
13 years 6 months ago
Fast Re-integration of Shadow Free Images
In imaging applications, computation is often carried out in a derivative (gradient) domain. For example, we can attenuate small image differences by thresholding the gradient and...
Clément Fredembach, Graham D. Finlayson
IMAGING
2004
13 years 6 months ago
Does an Expert Use memory Colors to Adjust Images?
In a previous experiment, we have studied the preference judgement of pictorial images with image experts and naive observers. We asked image experts to improve pictorial images t...
Clotilde Boust, Ferruccio Cittadini, Mohamed Ben C...