Hello
I have a problem with the image display level, the problem is that I have black spots in the white part and I want to eliminate them
attaching the resulting image and the .mat file
thank you in advance
MATLAB: Black task processing in an image
image analysisimage processingImage Processing Toolboximage segmentationMATLAB
Related Solutions
Just threshold and fill and get largest blob and measure equivalent circular diameter:
mask = GS > someValue; % You determine what someValue is. Ask if you need help.
mask = imfill(mask, 'holes');mask = bwareafilt(mask, 1);props = regionprops(mask, 'EquivDiameter');diameter = props.EquivDiametermessage = sprintf('The diameter = %f pixels, diameter)uiwait(helpdlg(message));Try imdilate() to expand it out 5 pixels.
xy = [10,30; 20,40; 50,30; 50,20; 40,20; 30,10; 20,10; 10,20]x = xy(:, 1);y = xy(:, 2);plot(x, y, 'b.', 'MarkerSize', 50);grid on;rows = 100columns = 100mask = poly2mask(x, y, rows, columns);subplot(2, 2, 1);imshow(mask, 'InitialMagnification', 1800);axis('on', 'image');% Dilate by 5 pixels.
se = strel('disk', 5, 0);mask5 = imdilate(mask, se);subplot(2, 2, 2);imshow(mask5, 'InitialMagnification', 1800);axis('on', 'image');perim=bwperim(mask5);subplot(2, 2, 3);imshow(perim, 'InitialMagnification', 1800);axis('on', 'image');impixelinfo;
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