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Real color images are images with noise. The application of gray-scale image enhancement methods in the three-channel of images (R, G, B), on the one hand, increased noise, on the other hand, tended to have a color deviation, which impacted the effect of enhancement. Therefore in view of the difference of human visual system sensitivity of the hue, saturation, luminance and image noise affecting differently...
Real color images are images with noise. The application of gray-scale image enhancement methods in the three-channel of images (R,G,B), on the one hand, increased noise, on the other hand, tended to have a color deviation, which impacted the effect of enhancement. In view of human visual system is more sensitive to lightness than hue, saturation and noise affects lightness more than a,b color channel...
Because the most algorithms of real color image enhancement did not relate to the spectral sensitivity of most people vision, the color restoration functions of some real color image enhancement algorithms are greatly at random and not proved, and the enhanced real color images which are based on illumination-reflectance model have the loss of details and the dasiahalospsila, we proposed a new algorithm...
Because the greatly most algorithms of real color image enhancement did not relate to the spectral sensitivity of most human vision, the color restoration functions of some real color image enhancement algorithms are greatly at random and not proved , and the real color images enhanced which are based on illumination-reflectance model have the loss of details and the dasiahalospsila, we proposed a...
The paper is focused on analyzing 20 heart sound samples, including patients with coronary disease and healthy persons. Short Time Flourier Transform (STFT) is adopted for the analysis, since Flourier Transform (FT) has its limitations as a tool in analyzing heart sound signals which as biological signals are weak and nonstable. The study demonstrates that the heart sounds of patients with coronary...
Field-pipeline operations are more easily affected by complex environment in comparison of common long-distance pipeline. Its failures such as leakage demand to be dealt with more urgently and efficiently. This paper proposes a leakage detection method based on the improved fast differential algorithm on the basis of negative pressure wave detection theory. The method can achieve high sensitivity...
Because the color restoration functions of real color image enhancement are greatly at random and not proved, and the enhanced real color images which are based on illumination-reflectance model have the loss of details and the 'halos', we proposed a new algorithm to overcome these disadvantages. Firstly, we transform the real color image from RGB space to HSV space which is approximately orthonormal...
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