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How to select rectangle ROI in the image and adjust the position of ROI manually. Then it can return the adjusted ROI position

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chihyu
chihyu on 11 Sep 2021
Commented: Matt J on 18 Sep 2021
I can generate roi using images.roi.Rectangle function, but it is easy to be time-consuming during the adjustment process.
Is there any way to write that allows me to manually adjust the roi size and position in the image, and return the pixel value of the roi adjusted position
close all
I = imread('rice.png'); % your input image
figure, imshow(I);
roi = images.roi.Rectangle(gca,'Position',[80,45,80,100]);

Accepted Answer

Matt J
Matt J on 11 Sep 2021
Edited: Matt J on 11 Sep 2021
h=drawrectangle();
wait(h);
You must double-click on the rectangle to confirm its position and return control to Matlab.
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