Learn R Programming

adimpro (version 0.9.7.2)

imganiso2D: create an image that visualizes anisotropy

Description

The function creates an object of class adimpro that visualizes anisotropy information using the HSI color space for main direction of anisotropy (H), maximum eigenvalue^satexp (S) and log(excentricity) (I).

Usage

imganiso2D(x, satexp = 0.25, g=3, rho=0)

Value

an object (image) of class adimpro.

Arguments

x

a field of 2D tensors (Dimension c(3,n1,n2)) or an object of class "adimpro".

satexp

exponent for maximum eigenvalue in saturation channel. Determines the contrast in this channel.

g

Bandwidth for anisotropic smoothing gradient estimates, preferably \(g \ge 3\) for images with line type texture and small \(g \approx 1\) for improving edges between homogeneous regions.

rho

Regularization parameter for anisotropic smoothing gradient estimates, preferably \(\rho = 0\) for images with line type texture and large \(\rho \approx 3*variance\) for improving edges between homogeneous regions.

Author

Karsten Tabelow tabelow@wias-berlin.de and Joerg Polzehl polzehl@wias-berlin.de

References

Polzehl, J. and Tabelow, K. (2007). Adaptive smoothing of digital images, Journal of Statistical Software 19 (1).

See Also

awsaniso,read.image, read.raw, make.image, show.image, clip.image

Examples

Run this code
if (FALSE) demo(awsimage)
if (FALSE) demo(manipulate)

Run the code above in your browser using DataLab