mask.create {adimpro} | R Documentation |
Create a mask for use within function awsimage
Description
Select part of image according to greyscale (or color) value.
Usage
mask.create(img,
range1 = c(0, 1), range2 = c(0, 1), range3 = c(0, 1),
locate = TRUE)
Arguments
img |
Image object of class "adimpro", usually the result
returned from |
range1 |
Range of gray values or values in the
first color channel. |
range2 |
Range of values in the second color
channel. |
range3 |
Range of values in the third color
channel. |
locate |
(logical). If |
Details
Function to create a mask. The returned object mask
can
be used to restrict computations in function awsimage
to
a region characterized by mask==TRUE
.
Value
logical matrix of image dimension.
Author(s)
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).