threshold {imbibe} | R Documentation |
Image thresholding
Description
Image thresholding
Usage
threshold(
image,
value,
reference = c("none", "image", "nonzero"),
above = FALSE
)
threshold_below(image, value, reference = c("none", "image", "nonzero"))
threshold_above(image, value, reference = c("none", "image", "nonzero"))
Arguments
image |
An image object or pipeline.
|
value |
Numeric threshold value.
|
reference |
String indicating what the value should be
referenced against, if anything. If "none" , the default, the
value is taken literally. If "image" , it is interpreted as
a proportion of the "robust range" of the current image's intensities. If
"nonzero" it is interpreted as a proportion of the "robust range"
of the nonzero pixel intensities.
|
above |
Logical value: if TRUE the operation zeroes values above
the threshold; otherwise it zeroes values below it. The
threshold_below and threshold_above function variants set
argument implicitly.
|
Value
An updated pipeline.
[Package
imbibe version 0.1.1
Index]