Plotting coordinates of object boundaries over x,y-sytem

I have the segmented image of 8 sprays. I want to extract the boundary of each sprays and plot it over a x,y-system with the main axis of the spray as the positive x-axis. As a result I want to have 8 plots of 8 sprays.

Answer 1

[Vishal Bhutani]

By my understanding you want to plot 8 sprays in 8 different figures. You can find the attached code for extracting boundaries from sprays and plot in different figures.

clc
clear all
close all
%bsp image
i = imread('bsp.jpg');
figure
imshow(i);

bw = imbinarize(i);

x = bwboundaries(bw);

%To plot all the sprays on single figure
figure
for k = 1:length(x)
   boundary = x{k};
   plot(boundary(:,2), boundary(:,1));
   hold on;
end

%To plot 8 sprays on 8 figures

hold off;
for k = 1:length(x)
   figure
   boundary = x{k};
   plot(boundary(:,2), boundary(:,1));
end

Hope it helps.