THE FRACLAC PANEL
Use the FracLac Panel to Select and Run Scans
Scan Action Buttons
Blue Scan Buttons
The blue buttons on the bottom of the FracLac panel start a scan. They are enabled after one of the top purple buttons has been used to set up a scan.
Scan Active Image or Roi
Click the Scan button on the main FracLac Panel to
scan the open image or an ROI selected on it.
This will scan all slices in a stack using the same settings.
The scan type
depends on which of the top row of buttons was set.
The currently selected scan type is displayed at the
bottom of the panel.
Scroll down or
click here
to read about the scan types available.
Batch Jobs
Use the blue Batch button on the FracLac panel
(or Open Files in older versions)
to analyze stored image files without opening them on screen.
Analyze single files or entire folders using
this option.
The scan type
depends on which of the
top row of buttons was set. The currently selected scan
type is displayed at the bottom of the panel.
Scroll down or
click here
to read about the scan types available.
Use the save results option when doing batch jobs to organize results and keep the number of on screen windows manageable.
Roi Manager
The blue button labeled "ROIs" is for scanning using all of the ROIs that are currently stored in IJ's built-in ROI Manager.
To use the blue ROIs button, first
add selections to the ImageJ ROI Manager, then
scan them automatically using the button.
To find the ROI Manager, on the ImageJ menu
select
Analyze >> Tools >> ROI Manager.
The scan type
depends on which of the
top row of buttons was set. The currently selected scan
type is displayed at the bottom of the panel.
Scroll down or
click here
to read about the scan types available.
ROI Button
Use this button to scan using IJ's ROI manager.
Buttons for Selecting the Type of Scan
Scan Types
Standard Box Counting
Click the purple BC (Box Counting) button on the main FracLac Panel to set up a scan to use standard box counting features.
Sliding Box Lacunarity Analysis (SLac)
Click the purple SLac button on the main FracLac panel to set up a Sliding Box Lacunarity scan. For sliding box scans, boxes overlap, in contrast to standard scans, in which they are are placed in a fixed grid.
Mass vs Distance Analysis
Click the MvD button on the main FracLac Panel to set up a Mass vs Distance scan. This type of scan samples an image using concentric squares or ovals.
Local Connected Fractal Dimension
Click the Dʟᴄ button on the main FracLac Panel to activate options for setting up a local connected fractal dimension scan (also called a LCFD scan). A LCFD scan uses a different sampling strategy than the usual fixed or sliding grid box counting methods.
Sub Scans
Click the Sub button on the main FracLac Panel to set up scans to analyze images by finding local fractal dimensions using regular arrays, random samples, or the Particle Analyzer. See colour coding to visualize results of sub scans.
Multifractal Analysis
Click the MF button on the main FracLac Panel to set up a multifractal analysis. The animation below shows a multifractal generated with free software that makes several types of fractal useful for doing benchmark analyses with FracLac.
Wave Button
Wave Button
The Wave Button
on the bottom of the FracLac panel opens a dropdown with
options for generating and analyzing wave data graphically. Use it
to generate image files for time series such as
heart rate data, EEGs, audio data,
metabolite concentrations, etc.
Save, Show, or Analyze
Click the Wave Button on the main FracLac Panel to
see the options for wave data. Use the
Save and Show options to
convert continuous data
such as time series data into images or stacks.
After a scan type has been selected using
the purple buttons,
the Analyze option appears in the dropdown; use it
to automatically analyze the data. Note that for large
datasets, it may be important
to use montage mode.
Wave Data Files
The program will
ask for a data file to convert. This is a series of numbers
in a text file as a single column, with no commas or other punctuation
between entries. For instance, you can make a file that FracLac
can read by typing enter after each entry
in a text editor or
by exporting a column of data from a spreadsheet into a
plain text format. When plotting the data graphically,
FracLac assumes the separation between data points is regular
on a horizontal scale with one unit between points. If the dataset is very
long or has a relatively high difference between the minimum and maximum
values, the program will ask if you want to scale it, including by
generating a stack (see important note below).
The images generated are binary (black and white), single-pixel wide curves. Depending on which option is selected, they are either shown on screen or saved to a directory.
If shown on screen, they can be analyzed immediately in FracLac. If saved, stacks or single images can be analyzed later by opening them or using batch processing. IMPORTANT: To analyze a stack of wave data as a single wave, use the stack montage function.
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