Results 291 to 300 of about 745,348 (331)
Some of the next articles are maybe not open access.
Conversion of Infrared Images to Visible in Color
Applied Optics, 1968An ir line scan instrument has been developed that scans a scene simultaneously with three separate spectral regions and produces an image of the scene as a color photograph. The three spectral regions are 0.5-1.0 micro, 3.0-5.5 micro and 8.0-14.0 micro. The ir detectors used are Si, InSb, and Ge:Hg, respectively.
L W, Nichols, J, Lamar
openaire +2 more sources
Color contrast enhanced RGBW conversion
2015 IEEE 4th Global Conference on Consumer Electronics (GCCE), 2015RGBW display can emit higher intensity level compared to RGB display but one of drawbacks is reduced color saturation. In this paper, we propose RGBW conversion method which considers reduced color saturation problem. Experiment results show that the proposed method is more effective than conventional methods in terms of saturation and intensity ...
Bongjoe Kim, Kyuha Choi
openaire +1 more source
Color video denoising based on adaptive color space conversion
Proceedings of 2010 IEEE International Symposium on Circuits and Systems, 2010Denoising is one of the most common and important task in video processing systems and abundant efforts have been made on video denoising nowadays. Multihypothesis motion compensated filter (MHMCF) is an effective video denoising method, which combines multiple hypotheses obtained from motion estimation through a number of reference frames by weighted ...
Jingjing Dai +5 more
openaire +1 more source
Fast Algorithm for HDR Color Conversion
2016 Data Compression Conference (DCC), 2016The paper addresses a problem of perceptual artifacts that appear in Y'CbCr non-linear luminance 4:2:0 HDR video. A computationally inexpensive method is proposed for converting the 4:4:4 HDR video to Y'CbCr 4:2:0 nonconstant luminance format. The method removes artifacts in areas with saturated colors.
openaire +1 more source
Double-color-pumped photorefractive oscillator and image color conversion
Optics Letters, 1987Can two laser beams of different colors interact with each other to initiate a photorefractive oscillation in a slowly responding (~1 sec) crystal? We report on the operation of this new nondegenerate four-wave mixing device, in which two other beams and the gratings are efficiently self-generated.
S, Sternklar, B, Fischer
openaire +2 more sources
One-Stage Model for Color Conversion*
Journal of the Optical Society of America, 1972Description of a one-stage approximation to the color-conversion model of Richards and Parks (1971). The modified model proposes three channels for color vision, each with different center-surround sensitivities. In its strongest form, the model predicts that the gain-setting control that alters the sensitivities of each channel is solely a function ...
openaire +2 more sources
Normalization factors in color space conversion
SPIE Proceedings, 2008The standard color space conversion equations usually do not explicitly account for a change in luminance. In an effort to understand color space conversion better, the color space conversion equations are derived from first principles. The solution shows how to calculate the RGB scale factors using xyY measured at a RGB triplet that is not restricted ...
openaire +1 more source
REVERSIBLE COLOR TO GRAYSCALE CONVERSION [PDF]
Journal of Information Systems and Operations Management, 2014 This article presents an algorithm for conversion of color images into grayscale ones, together with a codification schema which allows the reconstruction of color images. Two versions of the image recoloring are described.
Cristian Ungureanu +3 more
openaire
Efficacy of a color conversion filter in color-vision testing
Color Research & Application, 2000C Daylight™ glasses are designed to convert light from domestic incandescent lamps (≈Illuminant A) to the Illuminant C phase of daylight. The efficacy of this conversion is quantified here for the Farnsworth D15 test. Spectral transmittance and reflectance data for the filter and D15 caps, respectively, are used to compute chromaticities of the caps ...
J. D. Moreland, S. Westland
openaire +1 more source