Hi Cole. Please try this code. I hope it can give you some ideas
clc
clear all
close all
[filename, pathname] = uigetfile('*','File Selector');
I = imread(strcat(pathname,'\',filename)); % for example FileName='MyImage.jpg'
I=im2bw(I);
BW = edge(I,'canny',0.1);
[bw, loc2]= imfill(BW,'holes');
% http://www.mathworks.co.uk/help/images/ref/regionprops.html
rp = regionprops(bw,'All'); % you can specify the parameters which you need
ObjOrient=zeros(size(rp,1),1);
CenterX=zeros(size(rp,1),1);
CenterY=zeros(size(rp,1),1);
for i=1:size(rp,1)
ObjOrient(i)=rp(i).Orientation;
CenterX (i)= rp(i).Centroid(1);
CenterY (i)= rp(i).Centroid(2);
% you can other properties (for example area, perimeter etc here)
end
Final=[ObjOrient CenterX CenterY];
imshow(I);
hold on
for i=1:size(Final,1)
text(Final(i,2),Final(i,3),num2str(Final(i,1)),...
'HorizontalAlignment' , 'center',...
'VerticalAlignment' , 'middle');
end
title('Coordination of Particles - between -90 and +90');
figure
hist(Final(:,1));
title('Histogram');
xlabel('Angle - Degree');
ylabel('Number of objects');
