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Subtraction of images in two folders

Posted by Ramon Silva on Mar 02, 2016; 8:34pm
URL: http://imagej.273.s1.nabble.com/Subtraction-of-images-in-two-folders-tp5015773.html

Hi, i'm trying to do a subtraction of binary images, but what i receive as
result of subtraction is a white image. If you could help me with this
problem i'll appreciate it, because i don't know what is going wrong in my
code (ps.: i'm a beginner).
Since now, thank you!

Here's my actual code:

requires("1.38o");
    showMessage("Folder 1")
    dir1 = getDirectory("Choose a Directory ");
    showMessage("Folder 2:")
    dir2 = getDirectory("Choose a Directory ");
    listOD = getFileList(dir1);
    listOC = getFileList(dir2);
    newDir = "NeuroretinalRim";
    File.makeDirectory(newDir);
    setBatchMode(true);
    for (i=0; i<listOD.length; i++) {
        showProgress(i, listOD.length);
        open(dir1+listOD[i]);
        open(dir2+listOC[i]);
        imageCalculator("Subtract", listOD[i], listOC[i]);
        save(getDirectory("imagej")+"//"+newDir+"//"+(i+1)+".tif");
    }

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*Ramon Costa Silva*

*Graduando em Ciência da Computação.*

*Voluntário: Laboratório Aprendizagem Computacional e Métodos de Otimização
e Robótica - LACMOR.*

*Estagiário: Núcleo de Tecnologia da Informação - NTI.*
*Universidade Federal do Maranhão - UFMA.*

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