Results 151 to 160 of about 33,593,175 (203)
Some of the next articles are maybe not open access.
Independent-component analysis of skin color image
Journal of the Optical Society of America A, 1998The spatial distributions of melanin and hemoglobin in human skin are separated by independent-component analysis of a skin color image. The analysis is based on the skin color model with three assumptions: (1) Spatial variation of color in the skin is caused by two pigments, melanin and hemoglobin; (2) the quantities of the two pigments are mutually ...
Norimichi Tsumura +2 more
openaire +3 more sources
Segmentation of color images for image data analysis
Proceedings of the 44th annual Southeast regional conference, 2006The work described here discusses the analysis of images in port settings. As cargo containers are of specific colors, the hue information is being exploited to segment, identify and compress such video streams. A novel scheme using multiple processes has been developed.
openaire +2 more sources
Quantitative Color Image Analysis of Agronomic Images
Agronomy Journal, 1999AbstractMany kinds of information that are available to our eyes in a qualitative sense require large investments of time and instrumentation to confirm quantitatively. If this information is accessible to our eyes, however, it should be possible to capture it in a color photograph and analyze it quantitatively.
Robert P. Ewing, Robert Horton
openaire +1 more source
Mathematical analysis of color combination and color composition of images
SPIE Proceedings, 2002This study describes mathematical methods and measures valuable for revealing color features of an image, which are applied to computational analysis of several masterpieces of paintings.
Mituo Kobayasi +2 more
openaire +1 more source
Color image analysis by varying camera aperture
[1992] Proceedings. 11th IAPR International Conference on Pattern Recognition, 2003A set of images taken by systematically varying camera parameters conveys useful information which cannot or can hardly be extracted from a single image. This paper proposes a method to obtain the reliable color information, i.e. chromaticity and brightness from multiple color images taken with different aperture sizes, i.e.
Naoki Asada, Takashi Matsuyama
openaire +1 more source
Analysis of color images of natural scenes
Journal of Electronic Imaging, 1995A clustering algorithm for analyzing and partitioning the color images of natural scenes is described. The proposed method operates in the 1976 CIE (l*a*b*)uniform color coordinate system. It detects image clusters in some circular-cylindrical decision elements of the color space.
openaire +1 more source
Regional image analysis of the tongue color spectrum
International Journal of Computer Assisted Radiology and Surgery, 2010Kampo medicine (Japanese traditional herbal medicine) can identify "Mibyou" (disease-oriented state) based on visual tongue inspection by a trained physician. Surface colors of uncoated tongue provide essential features. A hyperspectral imaging system which performs regional image analysis of the tongue color spectrum was developed to automatically ...
Satoshi Yamamoto +6 more
openaire +3 more sources
Color Image Analysis by Quaternion Zernike Moments
2010 20th International Conference on Pattern Recognition, 2010Moments and moment invariants are useful tool in pattern recognition and image analysis. Conventional methods to deal with color images are based on RGB decomposition or graying. In this paper, by using the theory of quaternions, we introduce a set of quaternion Zernike moments (QZMs) for color images in a holistic manner. It is shown that the QZMs can
Beijing Chen +4 more
openaire +2 more sources
Quaternion principal component analysis of color images
Proceedings 2003 International Conference on Image Processing (Cat. No.03CH37429), 2004In this paper, we present quaternion matrix algebra techniques that can be used to process the eigen analysis of a color image. Applications of principal component analysis (PCA) in image processing are numerous, and the proposed tools aim to give material for color image processing, that take into account their particular nature.
Nicolas Le Bihan, Stephen J. Sangwine
openaire +2 more sources
Quantitative color analysis for capillaroscopy image segmentation
Medical & Biological Engineering & Computing, 2012This communication introduces a novel approach for quantitatively evaluating the role of color space decomposition in digital nailfold capillaroscopy analysis. It is clinically recognized that any alterations of the capillary pattern, at the periungual skin region, are directly related to dermatologic and rheumatic diseases.
Michela Goffredo +5 more
openaire +4 more sources