Up: Component summary
Up: Component summary
Component
ImageLocalMaximaFinds 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:
| Source | Output | |
|---|---|---|
 |  |
"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, |
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