thresholdImage: Threshold Image

In stnava/ANTsR: ANTs in R: Quantification Tools for Biomedical Images

Threshold Image

Description

converts a scalar image into a binary image by thresholding operations

Usage

thresholdImage(inimg, lothresh, hithresh, inval=1, outval=0)

Arguments

inimg	Input image to operate on
lothresh	Lower edge of threshold window
hithresh	Higher edge of threshold window
inval	Output value for image voxels in between lothresh and hithresh
outval	Output value for image voxels lower than lothresh or higher than hithresh

Value

antsImage

Author(s)

Shrinidhi KL

Examples

set.seed(1234)
img <- makeImage(c(5, 5), rnorm(25) + 0.5)
imgt <- thresholdImage(img, 0.5, Inf)
testthat::expect_equal(sum(imgt), 9)
imgt <- thresholdImage(img > 0.5, 0.1, Inf)
testthat::expect_equal(sum(imgt), 9)

stnava/ANTsR documentation built on April 16, 2024, 12:17 a.m.