merge_atlases: Merge Two Brain Atlases

In bbuchsbaum/neuroatlas: useful atlases/parcellations for neuroimaging analysis

Merge Two Brain Atlases

Description

Combines two brain atlases into a single unified atlas object, preserving all region information and adjusting region IDs to prevent conflicts. This is useful for creating composite atlases that combine different parcellation schemes.

Usage

merge_atlases(atlas1, atlas2)

Arguments

atlas1	The first atlas object to merge
atlas2	The second atlas object to merge

Details

The merging process:

• Verifies that both atlases have the same dimensions

• Adjusts region IDs in the second atlas to avoid overlap

• Combines color maps, labels, and hemisphere information

• Creates a new ClusteredNeuroVol object for the merged atlas

Value

A new atlas object containing:

name

Combined names of input atlases (atlas1::atlas2)

atlas

Combined ClusteredNeuroVol object

cmap

Combined colormap for all regions

ids

Adjusted vector of all region IDs

labels

Combined vector of region labels

orig_labels

Original labels from both atlases

hemi

Combined hemisphere designations

See Also

get_aseg_atlas, get_roi

Examples

## Not run: 
# Load two atlases
atlas1 <- get_aseg_atlas()
atlas2 <- get_aseg_atlas()

# Merge the atlases
merged <- merge_atlases(atlas1, atlas2)

# Check the combined regions
print(merged)

## End(Not run)

bbuchsbaum/neuroatlas documentation built on Dec. 24, 2024, 4:22 a.m.