MATLAB: Is it possible to find a center for a centroid and then use imcrop to find a certain size cropped area around that center

duplicate postimage analysisimage processingimage segmentation

I asked a question here

http://www.mathworks.com/matlabcentral/answers/299414-creating-image-mask-of-288-by-288-pixel-from-centroid-location-threshold-the-image-mask-and-out-put

I have images of cells that I have been able to find the centroids and I need crop a certain area (288 by 288 pixel area square) around this centroid's center. Not sure if this makes sense or is possible?

Best Answer

croppedImage = imcrop(binaryImage, [xmin-width/2, ymin-width/2, width, height]);

Related Solutions

MATLAB: How to find the centroid of cells in an image

Continue your code with this:

% Find the centroids of the mask.
props = regionprops(mask, grayImage, 'Centroid', 'WeightedCentroid');
allCentroids = vertcat(props.Centroid);
% Plot centroids over image in the overlay
hold on;
for k = 1 : size(allCentroids, 2)
    x = allCentroids(k, 1);
    y = allCentroids(k, 2);
    plot(x, y, 'r.', 'MarkerSize', 25)
    % You can plot the Weighted Centroids (weighted by the gray level) instead if you want.
end

MATLAB: Centroid of an image

Hi,

did you mean 'find centroid of objects in an image'??

use regionprops with property : centroid

Eg : stat = regionprops(Ilabel,'centroid');

I = imread('coins.png');
Ibw = im2bw(I);
Ibw = imfill(Ibw,'holes');
Ilabel = bwlabel(Ibw);
stat = regionprops(Ilabel,'centroid');
imshow(I); hold on;
for x = 1: numel(stat)
    plot(stat(x).Centroid(1),stat(x).Centroid(2),'ro');
end

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Related Solutions

MATLAB: How to find the centroid of cells in an image

MATLAB: Centroid of an image

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