profoundImBlur: Image Transformations

In ProFound: Photometry Tools

Description

Various image transformation functions that assist in exploring data. These all require the imager package to be installed.

Usage

profoundImBlur(image = NULL, sigma = 1, plot = FALSE, ...)
profoundImGrad(image = NULL, sigma = 1, plot = FALSE, ...)
profoundImDiff(image = NULL, sigma = 1, plot = FALSE, ...)

Arguments

image	Numeric matrix; required, the image we want to analyse.
sigma	Numeric scalar; standard deviation of the blur.
plot	Logical; should a magimage plot of the output be generated?
...	Further arguments to be passed to magimage. Only relevant is plot=TRUE.

Value

Numeric matrix; a new image the same size as image, with the relevant transform applied.

For profoundImBlur the output is a smoothed version of the image.

For profoundImGrad the output is the magnitude of the gradient of the smoothed version of the image.

For profoundImDiff the output is the original image minus the smoothed version of the image.

Author(s)

Aaron Robotham

See Also

profoundMakeSegim, profoundMakeSegimExpand

Examples

image=readFITS(system.file("extdata", 'VIKING/mystery_VIKING_Z.fits',
package="ProFound"))$imDat
magimage(image)
profoundImBlur(image, plot=TRUE)
profoundImGrad(image, plot=TRUE)
profoundImDiff(image, plot=TRUE)

ProFound documentation built on Jan. 8, 2021, 5:37 p.m.