How to overlay an image with a 10 by 10 grid?

I have a folder with 30 images and I want to overlay each image with a 10x10 grid. The image resolution is 1280x720. How to do this?

Answer 1

[Anay Aggarwal]

Hi Yash

I have an understanding that you want to overlay an image with a 10x10 grid.

The function plot is able to plot multiple line at once if you provide a 2D matrix as argument. So you can plot your image and then plot each line of your grid above your image.:

% Load your image
I = imread("peppers.png");
% Get image size
s = size(I);
% Choose your grid size
n = 10;
% Construct the line's coordinates of your grid
%              vertical line            horizontal line   
%                    ↑                          ↑           
x = [repmat(linspace(0,s(2),n),2,1)   repmat([0,s(2)].',1,n)];
y = [repmat([0,s(1)].',1,n)   repmat(linspace(0,s(1),n),2,1)];

% Plot the image and the grid.
imshow(I)
hold on
plot(x,y,'g')

And we obtain:

Hope this helps

Regards

[Yash Khandelwal]

Thanks a lot man