The program NIFTIPeak is designed to find the peaks in all NIFTI volumetric image files in the SAM subdirectory of a named dataset. It is similar in function to the AFNI program 3dExtrema, although NIFTIPeak was created specifically for finding peaks in images produced by SAMepi.
NIFTIPeak -r <dataset>
This outputs a single text file, giving the coordinates of each maximum, as well as the power if requested with the -p option.
|-t <threshold>||Threshold for peak detection, usually a Z value. Defaults to the RMS intensity|
|-s <size>||radius of the maximum search - individual maxima must be further apart than this distance to be considered separate maxima. Default value is twice the voxel dimension.|
|-n <max>||Maximum number of maxima reported. Defaults to 10.|
|-p||List the power in the output file|