MATLAB: Getting rid of noise

bwlabelfilterimageImage Processing Toolboxnoiseregionprops

So I have the image that I have attached. I am trying to count the objects in the image (The black rectangle) but matlab is picking up the other object (noise). I have tried few filters but I haven't been able to get rid of it. I was wondering if someone had a better idea.

Best Answer

Actually I figured it out. I just inverted it using imcompliment. Then used bwareaopen to pull all the noise away then inverted it back. It may sound stupid but it works.

Related Solutions

MATLAB: How can i separate all the connected regions in a binary image and display them individually.

Use bwlabel() and ismember

[labeledImage, numRegions] = bwlabel(binaryImage);
props = regionprops(labeledImage, 'Area')
% Compute all the areas.
allAreas = [props.Area]
% Display each blob in its own figure.
for k = 1 : numRegions
    thisRegion = ismember(labeledImage, k);
    figure;
    imshow(thisRegion);
    drawnow;
end

MATLAB: How to count number of white cirlces in a bw image

Use bwlabel():

[labeledImage, numRegions] = bwlabel(binaryImage);

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Related Solutions

MATLAB: How can i separate all the connected regions in a binary image and display them individually.

MATLAB: How to count number of white cirlces in a bw image

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