Up: Component summary Component

ImageLocalMaxima

Finds local maxima centers in a grayscale intensity image. The component uses algorithms implemented by John C. Crocker, David G. Grier and Eric R. Dufresne.

Example:

SourceOutput
"File"      "X" "Y" "Brightness" "Gyration radius2"
"cells.tif" 59  90      44          0.05
"cells.tif" 67 128      70          0.07  ...

Version 1.2
Bundle anima
Categories Image Analysis
Authors Ville Rantanen (ville.rantanen@helsinki.fi)
Issue tracker View/Report issues
Requires Matlab
Source files component.xml pkfnd.m imagelocalmax.m cntrd.m execute.m
Usage Example with default values

Inputs

Name Type Mandatory Description
in ImageList Mandatory A directory with grayscale image files.
names ImageList Optional A directory with the original image files, for naming the centers. If omitted, names from "dir" are used.

Outputs

Name Type Description
mask ImageList BW PNG images with centers marked.
centers CSV List of center points.

Parameters

Name Type Default Description
centerSize int 11 Radius of center search area. Must be odd.
lowpass int 9 Lowpass filter size. Must be odd. Use 0 to disable.
maximaSize int 11 Radius of maximum to search. Must be odd.
minInt float 0.05 Lowest intensity to accept as a maximum. Range 0 to 1.

Test cases

Test case Parameters IN
in
IN
names
OUT
mask
OUT
centers
case1 properties in (missing) mask centers

lowpass=21,
minInt=0.05,
maximaSize=31,
centerSize=29


Generated 2018-12-17 07:42:15 by Anduril 2.0.0