Hello Andrew,
I understand that you want to count the number of circles detected in each frame and display it in the command window or visualise it in a graph.
I would suggest you create an array that will keep track of the number of circles in each frame and name it ‘circleCount’. Each element in this array will contain the number of circles found in the corresponding index’s frame.
You can obtain the number of circles by calculating the row size of the ‘centresbright’ variable which is an output of the ‘imfindcircles’ function. Refer to the code snippet to understand the procedure:
circleCount = zeros(numberOfFiles, 1); % Initialize circle count array before the loop
%%
for k = 1:numberOfFiles
newImage1 = subtractionImage{k};
[centresbright, radiibright] = imfindcircles(newImage1, [Rmin Rmax], 'ObjectPolarity', 'bright',
'Sensitivity', 0.85,'EdgeThreshold',0.10);
% Store the circle count for this frame
circleCount(k) = size(centresbright, 1);
viscircles(centresbright, radiibright, 'color', 'b')
end
You can now plot this data using the ‘plot’ function and visualise the number of circles in each corresponding frame. Refer to the following code snippet on the procedure:
% Display circle count in each frame
frameNumbers = 1:numberOfFiles;
figure;
plot(frameNumbers, circleCount);
title('Number of Circles in Each Frame');
xlabel('Frame Number');
ylabel('Circle Count');
Hope this helps!
