Variable Thresholding using Image Partitioning | Digital Image Processing | MATLAB

Code :

clc
clear all
close all
warning off
x=rgb2gray(imread('Capture.JPG'));
imshow(x);
title('Original Image');
figure;
imhist(x);
axis tight;
title('Histogram of Original Image');
figure;
imshow(im2bw(x,graythresh(x)));
title('Global Thresholding');
figure;
[r c]=size(x);
output=zeros(r,c);
starts=floor(1:c/10:c);
ends=starts(2:length(starts));
ends=[ends c];
imshow(x);
hold on;
for i=1:10
plot([ends(i) ends(i)],[1 r],'w');
end
for i=1:10
temp=x(:,starts(i):ends(i));
out(:,starts(i):ends(i))=im2bw(temp,graythresh(temp));
end
figure;
imshow(out);
title('Output of Variable Thresholding');


Learn Image Processing using MATLAB:
https://www.youtube.com/watch?v=L9hku2og874&list=PLjfRmoYoxpNostbIaNSpzJr06mDb6qAJ0&index=2&t=37s

#DigitalImageProcessing #MATLAB #ComputerVision