identify_thresholded_objects {Bioi} R Documentation

## Assign all neighboring pixels the same group number.

### Description

This function is deprecated. It now calls the more efficient find_blobs method.

This function takes a matrix corresponding to a thresholded image and returns a matrix of the same size, where all adjacent, thresholded pixels are the same integer corresponding to that object's cluster number.

### Usage

identify_thresholded_objects(img, pixRange = 50)


### Arguments

 img A thresholded matrix (where non-object pixels are assigned a value of 0). pixRange This parameter is now obsolete. Previously, the parameter denoted an integer number of pixels to specify a search region. Execution was faster when this value was small. However, the value needed to be larger than the diameter of the largest continuous object in the image.

Zach Colburn

### Examples

# Generate a random matrix.
set.seed(10)
mat <- matrix(runif(70), nrow = 7)

# Arbitrarily say that everything below 0.8 is background.
mat[mat < 0.8] <- 0

# Find blobs.
identify_thresholded_objects(mat)



[Package Bioi version 0.2.10 Index]