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Effective cancellation of noise and preservation of color/structural information are features of paramount importance for any filter devoted to impulse noise removal in color images. In this paper novel full-reference tools for analyzing the behavior of this family of filters are presented. The proposed approach is based on the classification of color errors into two main classes that separately take into account the inaccuracy in removing noise pulses and the filtering distortion. The distortion errors are then classified into two subclasses for a deeper analysis of the filtering behavior. Computer simulations show that the proposed method gives more accurate results than using other measures of filtering performance in the literature. Furthermore, the method can easily yield the spatial location of the different filtering features in the image.
Special Relativity sets tight constraints on the form of the possible relations between the four-momentum of a particle and the wave four-vector. In fact, we demonstrate that there is just one way, according to Special Relativity, to relate the energy and the momentum of a corpuscle with the characteristics of a plane wave, frequency and wave vector, if the momentum has to flow in the same direction of the wave propagation: the laws must be of direct proportionality like de Broglie and Planck-Einstein equations.
Flaxseed meal from twenty-one varieties has
been evaluated for content of cyanogenic glycosides (linamarin, linustatin and
neolinustatin). Varieties belonging to three different groups of productive
attitude (oil, fiber and intermediate) were considered. The total content of
cyanogenic glycosides ranged from 0.74 to 1.60 g?Kg?1 CN?. As expected, linamarin was a minority
component accounting for only 2% - 14% of total glycosides. Linustatin resulted
statistically lower in the intermediate group than that in the other groups and, in particular, it
was the lowest in the Festival variety. Neolinustatin resulted lower in the
fiber group although the variety Ventimiglia (belonging to oil group) showed a
negligible level of this compound. Neolinustatin was positively correlated to
total cyanogenic glycosides (r = 0.709) and inversely correlated to linustatin
(r = ?0.326). The variability observed
in the content of the various forms of glycosides could be exploited in breeding
programs to reduce the content of these toxic compounds in flaxseed meal.