MATLAB: Cropping out two images from one big image by manually selecting the cropping are

Question

How can I crop two images out from one big image by manually selecting the region for cropping out with a rectangle for example? Additionally, how can I extract the rows and columns that I selected with the rectangle?

Answer 1

Try this code

img = imread('pears.png');
figure();
ax1 = axes();
imshow(img, 'Parent', ax1)
fprintf('Drag a rectange on the image.\n')
roi = drawrectangle(ax1);
img_small = imcrop(img, roi.Position);
figure();
ax2 = axes();
imshow(img_small, 'Parent', ax2)