This paper presents an image adaptive linear filtering method for the reconstruction of the RGB (red, blue, green) color coordinates of a pixel from the lossy compressed luminance/chrominance color coordinates. In the absence of quantization noise, the RGB coordinates of a pixel can be perfectly reconstructed by employing a standard, fixed filter whose support includes only the luminance/chromi...

PURPOSE The purpose of this study was to develop an algorithm to automatically standardize the brightness, contrast, and color balance of digital color fundus photographs used to grade AMD and to validate this algorithm by determining the effects of the standardization on image quality and disease grading. METHODS Seven-field color photographs of patients (>50 years) with any stage of AMD and...

QTL-analysis (quantitative trait loci) and marker development rely on efficient phenotyping techniques. Objectivity and precision of a phenotypic data evaluation is crucial but time consuming. In the present study a high-throughput image interpretation tool was developed to acquire automatically number, size, and volume of grape berries from RGB (red-green-blue) images. Individual berries of on...

A compact multicolor beam illuminator and a compact multicolor beam expander are presented. The illuminator performs the dual task of demultiplexing a narrow red-green-blue (RGB) input beam into three separate beams, each of a different color, and expanding them to yield three separate magnified plane waves. The beam expander expands a narrow RGB input beam into a single magnified RGB plane wav...

It is known that human eyes are less sensitive to color, than their brightness. In the RGB color space, all three components considered equally important, and they usually stored with same resolution. However, you can display a image more efficiently, separating brightness from information presenting it higher resolution color. space well suited for computer graphics, because uses these formati...

We present an algorithm for segmenting cells in a microscopic image of immunohistologically stained slides from breast cancer based on color contents. The procedure for the approach consists of color categorization using neural network, noise removal and shape simplification using mathematical morphology, and cell size consideration. In order to obtain the more accurate segmentation, we further...

Image processing techniques are based nearly exclusively on RGB (red–green–blue) representation, which is significantly influenced by technological issues. The triplet represents a mixture of the wavelength, saturation, and lightness values light. It leads to unexpected chromaticity artifacts in processing. Therefore, should be more resistant introduction color artifacts. proposed process conve...

In this study we use a multi-spectral digital microscope (MDM) to measure multi-spectral auto-fluorescence and reflectance images of the hamster cheek pouch model of DMBA (dimethylbenz[alpha]anthracene)- induced oral carcinogenesis. The multi-spectral images are analyzed both in the RGB (red, green, blue) color space as well as in the YCbCr (luminance, chromatic minus blue, chromatic minus red)...

Q1. What do you mean by computer graphics? Ans. The branch of science and technology concerned with methods and techniques for converting data to or from visual presentation using computers. Q3.What do you mean by interactive computer Graphics? Ans. Interactive computer Graphics like a website, it is only useful if it is browsed by a visitor and no two visitors are exactly alike. It means the w...

Tiling projectors provides an effective and easy option to increase screen space. Differences in projectors' components however contribute to non-uniformities in illumination and colour and detract from image quality and useability. In collaboration with JVC we developed a compact, high-resolution, uniform, tiled projection computer display based on a single common light source. A single set of...