نتایج جستجو برای: colour quality

تعداد نتایج: 783271  

2005
S. Uma S. Annadurai

In this paper, we consider the problem of colour image restoration degraded by a blur function and corrupted by random noise. A new approach implemented by multilayer morphological (MLM) neural network is presented, which uses highly nonlinear morphological neuron for image processing to get a high quality restored colour image. In this paper colour images are considered into RGB distribution. ...

2003
C. P. Fenimore A. I. Nikolaev

ABSTRACT The proponents of digital cinema seek picture quality exceeding that of the best film-based presentation. Quantifying the performance of systems for the presentation of high quality imagery presents several challenges. For example, the dynamic range and the resolution may not be simply related to the nominal characteristics of bit-depth and pixel counts. We review some of the measureme...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2006
masoud hafezi bahram nasernejad farzaneh vahabzadeh

the optimum fermentation times of black tea manufactured by two systems of orthodox and ctc (cut, tear & curl) were investigated by measuring the quality parameters of black tea, like: theaflavin, thearubigin, highly  polymerized substances and total liquid colour during the fermentation stage. optimum fermentation times from the beginning of fermentation were determined to be 60 min and 15...

2013
Nagendra Kumar

60 Abstract: Information security has become a cause of concern because of the electronic eavesdropping. For hiding secret information in images, there exist a large variety of steganographic techniques. Some of them are more complex than others and all of them have respective strong and weak points. Different applications have different requirements of the steganography technique used. For exa...

2013
Rebecca M. Harris Peter McQuillan Lesley Hughes

Altitudinal clines in melanism are generally assumed to reflect the fitness benefits resulting from thermal differences between colour morphs, yet differences in thermal quality are not always discernible. The intra-specific application of the thermal melanism hypothesis was tested in the wingless grasshopper Phaulacridium vittatum (Sjöstedt) (Orthoptera: Acrididae) first by measuring the therm...

2012
M. Iqbal J. Chen W. Yang P. Wang B. Sun

Spaceborne synthetic aperture radar (SAR) plays more and more important role in Earth observation science, especially with ScanSAR mode which provides wide-swath coverage with moderate resolution. However, scalloping and inter-scan banding (ISB) are two major artifacts, which significantly degrade the quality of ScanSAR images. In this paper, a novel technique for removal of scalloping and ISB ...

2017
Yong Zhi Foo Leigh W. Simmons Gillian Rhodes

Facial attractiveness has been suggested to provide signals of biological quality, particularly health, in humans. The attractive traits that have been implicated as signals of biological quality include sexual dimorphism, symmetry, averageness, adiposity, and carotenoid-based skin colour. In this study, we first provide a comprehensive examination of the traits that predict attractiveness. In ...

2013
Giovanni Moretti Stephen Marsland Paul Lyons

Although webpage and computer interface designers generally have little experience at generating effective colour schemes, colour selection appears only rarely in user interface design literature. This article describes the experimental evaluation of an algorithmic technique that applies colour harmony rules to the selection of colour schemes for computer interfaces and web pages. The technique...

Journal: :journal of dental biomaterials 0
amir alireaza khaledi department of prosthodontics, school of dentistry, shiraz university of medical sciences, shiraz, iran anahita safari department of prosthodontics, school of dentistry, shiraz university of medical sciences, shiraz, iran afsoon adibi private dentist sadaf adibi department of oral & maxillofacial radiology, school of dentistry, shiraz university of medical sciences, shiraz, iran

statement of problem: the effect of mouth washes on discolouration of dental ceramics with different surface preparations is not well documented. objectives: this in-vitro study has been conducted to evaluate the effect of chlorhexidine (chx) mouth rinse on colour stability of overglazed (op), autoglazed, (ap) or polished porcelain (pop) specimens. materials and methods: the restorative materia...

Journal: :Current Biology 2006
C. J. Reaume M. B. Sokolowski

they form juxtaposed pointillistic colour centres which, to our eyes, create the stimulus of the colour green (the same principle is used in many neo-impressionist paintings). One further special feature of this structurally coloured system, and possibly the reason it evolved, is that only the blue colour component is significantly linearly polarised; linear polarisation is sometimes used for i...

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