wave.variance.2d: Wavelet Analysis of Images
In neuroconductor/waveslim: Basic Wavelet Routines for One-, Two-, and Three-Dimensional Signal Processing
wave.variance.2d R Documentation
Wavelet Analysis of Images
Description
Produces an estimate of the multiscale variance with approximate
confidence intervals using the 2D MODWT.
Usage
wave.variance.2d(x, p = 0.025)
Arguments
x
image
p
(one minus the) two-sided p-value for the confidence interval
Details
The wavelet variance is basically the average of the squared wavelet
coefficients across each scale and direction of an image. As shown
in Mondal and Percival (2012), the wavelet variance is a
scale-by-scale decomposition of the variance for a stationary spatial
process, and certain non-stationary spatial processes.
Value
Data frame with 3J+1 rows.
Author(s)
B. Whitcher
References
Mondal, D. and D. B. Percival (2012). Wavelet variance
analysis for random fields on a regular lattice. IEEE
Transactions on Image Processing 21, 537–549.
neuroconductor/waveslim documentation built on Feb. 6, 2023, 6:56 a.m.
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| wave.variance.2d | R Documentation |
Wavelet Analysis of Images
Description
Produces an estimate of the multiscale variance with approximate confidence intervals using the 2D MODWT.
Usage
wave.variance.2d(x, p = 0.025)
Arguments
x |
image |
p |
(one minus the) two-sided p-value for the confidence interval |
Details
The wavelet variance is basically the average of the squared wavelet coefficients across each scale and direction of an image. As shown in Mondal and Percival (2012), the wavelet variance is a scale-by-scale decomposition of the variance for a stationary spatial process, and certain non-stationary spatial processes.
Value
Data frame with 3J+1 rows.
Author(s)
B. Whitcher
References
Mondal, D. and D. B. Percival (2012). Wavelet variance analysis for random fields on a regular lattice. IEEE Transactions on Image Processing 21, 537–549.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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