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Re: Analyze particles Exclude edge particles not working when automated

Posted by Michael Schmid on Feb 18, 2015; 3:12pm
URL: http://imagej.273.s1.nabble.com/Analyze-particles-Exclude-edge-particles-not-working-when-automated-tp5011662p5011666.html

Hi Miriam,

in Process>Binary>Options, there is an option "Pad edges when eroding"; your macro requires this.
(use Plugins>Macros>Record to see the macro code).
Without that option, the 'Close-' operation, which dilates and erodes the image, leaves a 1-pixel line at the border free, and your particles don't touch the edge any more.

Michael
________________________________________________________________
On Feb 18, 2015, at 13:57, Mariam Shirdel wrote:

> Hi!
> I'm trying to analyse images of particles similar to the image I have attached. When I do this manually in ImageJ exclude edge particles in Analyze Particles works fine. When I try to use a macro I've modified everything works except for exclude edge particles. I can use the command and Analyze Particles works and I get all of the results, it's just that exclude edge particles is ignored. I've tried to figure out what I'm doing wrong, but I really can't find it. Does anyone know what could be wrong?
>
> The whole macro is:
>
> requires("1.33s"); //display a message and aborts the macro if the ImageJ version is less than the one specified.
>
> print("\\Clear");
> run("Clear Results");
>
> //Set the correct measurements
> run("Set Measurements...", "area perimeter fit shape area_fraction redirect=None decimal=3");
> setBatchMode(false);
> rolling = 50; // the rolling ball background subtraction diameter
> sigma = 1.0; // the sigma diameter for Gaussian blur
> thresholdMethod = newArray("Default", "Huang", "Intermodes", "IsoData", "Li", "MaxEntropy", "Mean", "MinError(I)", "Minimum", "Moments", "Otsu", "Percentile", "RenyiEntropy", "Shanbhag", "Triangle", "Yen"); // the threshold method applied by Multithresholder
> minCirc = 0.00; // the minimum circularity for a particle
> maxCirc = 1.00; // the maximum circularity for a particle
> excludeEdge = true;
> APExclude = "";
> watershed = false;
>
> //Prompt for a folder that contains the images and text files from the ESEM
> dir = getDirectory("Choose a Directory ");
>
> //Get the correct values to set the scale
> distance_pixels = getNumber("Distance in pixels?", 313);
> known_um = getNumber("Known distance?", 200);
> minArea = (known_um/distance_pixels)^2; // the minimum area to be considered as a particle in um, one pixel in um
> maxArea = 10000; // the maximum area to be considered as a particle in um, equations only relevant for diameter of particle below 100 um
>
> Dialog.create("Segmentation parameters");
> Dialog.addNumber("Rolling ball diameter (0=don't subtract):", rolling); //1
> Dialog.addNumber("Gaussian blur diameter (0=don't blur):", sigma); //2
> Dialog.addChoice("Threshold method:", thresholdMethod); //3
> //Dialog.addNumber("Minimum particle area (um):", minArea); //4
> //Dialog.addString("Maximum particle area (um):", maxArea); //5
> Dialog.addNumber("Minimum particle circularity:", minCirc); //6
> Dialog.addNumber("Maximum particle circularity:", maxCirc); //7
> Dialog.addCheckbox("Run watershed", watershed); //8
> Dialog.addCheckbox("Exclude edge particles", excludeEdge); //9
> Dialog.show();
> rolling = Dialog.getNumber(); //1
> sigma = Dialog.getNumber(); //2
> thresholdMethod = Dialog.getChoice(); //3
> //minArea = Dialog.getNumber(); //4
> //maxArea = Dialog.getString(); //5
> minCirc = Dialog.getNumber(); //6
> maxCirc = Dialog.getNumber(); //7
> watershed = Dialog.getCheckbox(); //8
> excludeEdge = Dialog.getCheckbox(); //9
>
> if (excludeEdge) //will be used later when Analyze Particle is run
>                             APExclude = "exclude";
>
> filenames = getFileList(dir);
> for (i=0; i<filenames.length; i++){
>                             imagefile = filenames[i];
>
>                             //Open the image and set the scale for the image
>                             open(dir + imagefile);
>                             run("Set Scale...", "distance=distance_pixels known=known_um pixel=1 unit=um global");
>
>                             //Subtract the background to minimize noise. 50 seems to work well.
>                             if (rolling > 0)
>                                                          run("Subtract Background...", "rolling=" + rolling); // + " light"
>
>                             //Blur the image a bit.
>                             if (sigma > 0)
>                                                          run("Gaussian Blur...", "sigma=" + sigma);
>
>                             //Use thresholding, IsoData (1) or Otsu (2) for CT, MaxEntropy (2) or RényiEntropy (1) for PC.
>                             setAutoThreshold(thresholdMethod + " dark");
>                             run("Threshold...");
>                             setOption("BlackBackground", false);
>                             run("Convert to Mask");
>
>                             //Close the particles and fill the holes that might arise from closing.
>                             run("Close-");
>                             run("Fill Holes");
>
>                             //Watershed gets a few more particles and segments particles that are supposed to be divided.
>                             if (watershed)
>                                                          run("Watershed");
>
>                             //Analyze the particles in the image.
>                             run("Analyze Particles...", "size=" + minArea + "-" + maxArea + " circularity=" + minCirc + "-" + maxCirc + " show=Outlines display " + APExclude + " clear summarize");
>
>                             //Select the Results window
>                             selectWindow("Results");
>                             //Save the Results to a file both as .txt and .xls
>                             //.txt
>                             saveAs("text", dir + "Results_" + imagefile);
>                             //.xls
>                             index = lastIndexOf(imagefile, ".");
>                             if (index!=-1)
>                                                          imagefilenew = substring(imagefile, 0, index);
>                             imagefilenew = imagefilenew + ".xls";
>                             saveAs("Results", dir + "Results_" + imagefilenew);
>
>                             //Select the particle outlines window
>                             outlines = "Drawing of " + imagefile;
>                             selectWindow(outlines);
>                             //Save the outline drawing produced by the particle analysis
>                             saveAs("tiff", dir + outlines);
>
>                             //Copy the particle outlines window and add it to the original image file
>                             close(imagefile);
>                             open(dir + imagefile);
>                             selectWindow(imagefile);
>                             run("RGB Color"); //original image file is changed from 8-bit to RGB color
>                             imageCalculator('AND', imagefile, outlines);
>                             saveAs("tiff", dir + "Overlay_" + imagefile);
>
>                             print("\\Clear");
>                             run("Clear Results");
> }
>
> //Select the Summary window
> selectWindow("Summary");
> //Save the Summary to a txt file
> saveAs("text", dir + "Summary");
>
> //Create a file with all the information about how the image has been manipulated
> criteriaPath = dir + "PSA_criteria.csv";
> criteriaFile = File.open(criteriaPath);
> print(criteriaFile, "rolling, sigma, thresholdMethod, minArea, maxArea, minCirc, maxCirc, excludeEdge, watershed, distance, known"); //writes to the open file criteriaFile
> print(criteriaFile, rolling + ", " + sigma + ", " + thresholdMethod + ", " + minArea + ", " + maxArea + ", " + minCirc + ", " + maxCirc + ", " + excludeEdge + ", " + watershed + ", " + distance_pixels + ", " + known_um); //writes to the open file criteriaFile
> File.close(criteriaFile);
>
> //Close all open windows
> close("\\Others");
> close();
> list = getList("window.titles");
> for (j=0; j<list.length; j++){
>     windowname = list[j];
>     selectWindow(windowname);
>     run("Close");
> }
>
> Best regards,
> Mariam
>
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> <PC3940_Compo_02.tif>

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