How can I make the image which is after hold on and plot to a variable

This is my code.

figure;
detect1=imshow(frame_target);
hold on;
line(newReferencePolygon(:, 1), newReferencePolygon(:, 2), 'Color', 'y');% add a line to this image

In this case, I added some lines to my figure.

I want to use this figure with changed in later code which means make that changed figure to a variable.

I don't want to save that figure in my computer.

What should I do?

Thank you.

Answer 1

[Walter Roberson]

https://www.mathworks.com/matlabcentral/answers/783966-draw-line-in-a-picture#answer_658586