random vectors each having a uniform distribution in the unit square S of the plane. After μ n is known, take the worst partition of the square into k≦n rectangles R i , each with its short side at least δ times as long as the long side, and let Z = n ∑|μ n ( R j )...
Because on LSB, the message will be distributed uniformly with the reversal of the value at embedding. Thus, the appearance of the two values is more the same than the cover image. The more uniform the message bits are hidden in the cover image, the more time the PoVs appear the same ...
13 combined traditional histogram equalization with physics-based dichromatic modeling (PDM) to achieve a uniform distribution of pixel intensities, resulting in improved contrast. Similarly, Xiang et al.14 introduced the histogram quadruple segmentation and cropping technique for segmenting the underwater ...
In the real world, due to nonuniform distribution, basic column statistics are not enough to describe the data correctly. There are two types of skew: nonuniform value repetition and nonuniformity in range. With nonuniform value repetition, column data is considered to be nonuniformly distributed ...
This is a square matrix with its dimensions equal to the number of intensities within an image. For a uniform image, i.e., with no gray-level variations, the matrix is diagonal, and off-diagonal cells are equal to zero. Besides, the off-diagonal cell values become non-zero if ...
I have written the following source code: using System; public class CommonDistributions { public static double Uniform(Random random) { return random.NextDouble(); } static double Gaussian(Random random) { return Math.Sqrt(-2 * Math.Log(Uniform(random))) *... ...
uniform_unit_scaling_initialzer will be used. """withvs.variable_scope('linear_regression'): scope_name = vs.get_variable_scope().name summary.histogram('%s.x'% scope_name, x) summary.histogram('%s.y'% scope_name, y) dtype = x.dtype.base_dtype ...
'stone':9},5000: {'fd':17,'scott':17,'rice':35,'sturges':14,'doane':17,'sqrt':71,'auto':17,'stone':20}}fortestlen, expectedResultsinbasic_test.items():# Create some sort of non uniform data to test with# (2 peak uniform mixture)x1 = np.linspace(-10,-1, testlen //5*...
The results, performed on controlled and on real images, demonstrate the effectiveness of the method over a uniform distribution and allows a lower number of depth planes, and thus a more performant processing, for the same quality. 展开
An equal-width histogram for price, where values are aggregated so that each bucket has a uniform width of $10. “How are the buckets determined and the attribute values partitioned?” There are several partitioning rules, including the following: ■ Equal-width: In an equal-width histogram,...