In this paper we present two algorithms for generating I-eigenvalue free threshold graphs.Allem, Luiz EmilioUniv Fed Rio Grande do SulOliveira, Elismar R.Univ Fed Santa MariaTura, Fernandoelectronic journal of combinatorics
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The process of determining the position of the threshold is a process in a real space, and can determine the position of the threshold for the next gradation accurately. The threshold arrangement thus determined minimizes a moir茅 pattern which is an unwanted low-frequency component in a ...
A motion detector responsive to the magnetic field signal and to a threshold signal is configured to generate a detector output signal having edges occurring in response to a comparison of the magnetic field signal and the threshold signal. A speed detector responsive to the detector output signal...
threshold setting unit for generating a threshold matrix of a FM screen by increasing or decreasing dots from the basic dot pattern and by repeating a process of setting a threshold to a pixel in which the dots are increased or decreased, and the threshold matrix has a shape which is to ...
A threshold matrix generating method includes: generating q(x, y, g) in which the number of dots in an initial dot pattern is varied; calculating an error matrix (ERR(x, y, g)) of q(x, y, g); calculating AVE(a, b) representing the uniformity of the number of dots in discrete ...
threshold setting unit for generating a threshold matrix of a FM screen by increasing or decreasing dots from the basic dot pattern and by repeating a process of setting a threshold to a pixel in which the dots are increased or decreased, and the threshold matrix has a shape which is to ...
The threshold values in the dither matrix are filtered to generate a filtered dither matrix of filtered dither values by performing for dither values in the dither matrix: determining a region of dither values in the dither matrix that surrounds the value being considered, wherein the dither ...
specified elements, is repeated to acquire a turn-on order of dots with increase in gray level in one grayscale range and a turn-off order of dots with decrease in gray level in the remaining grayscale range, and a threshold value of each element is determined according to these orders. ...
The size of the threshold value matrix corresponds to the size of the respective raster matrix. The above process is repeated until all pixels are set in the raster matrix. Independent claims are also included for the following: (A) a threshold value peak for frequency-modulated screening (B)...