crop 2 images with the same size

hi i work with matlab gui , i have 2 images i want to crop the first one and the same dimensions will be applied on the second one i hope u understand me any help please

3 Comments

i used this script
I=imread('personne.jpg');
figure, imshow(I)
[cropped1 rect] = imcrop(I);
imshow(cropped1)
j=imread('int.jpg');
[cropped2] = imcrop(j,rect);
imshow(cropped2)
the problem is that after the crop it shows me only the last image while i need the 2 images to be seen
Looks like a good answer to me. DGM, can you move it down to the official ANswer section below where you can earn "Reputation Points" for it?
I'm often reluctant to jump at assuming my answers are sufficient when people mention that they're working on a GUI. If it turns out they need help with appdesigner or something, I'm not going to be much help since appdesigner is completely broken on my system.

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Answers (1)

Have you looked at imcrop()? Imcrop has an interactive mode and will output the selected RECT parameter when the appropriate syntax is used.
[cropped1 rect] = imcrop(thispict);
You can then call imcrop using that parameter
[cropped2] = imcrop(thatpict,rect);
To display the images, you could do that any number of ways.
You could use subplots or tiledlayout
subplot(1,2,1); imshow(cropped1)
subplot(1,2,2); imshow(cropped2)
or you could use montage:
montage({cropped1,cropped2})
or since they're the same size, you can just concatenate them and show them as one
imshow(cat(2,cropped1,cropped2))

3 Comments

thank you it worked
cyrine tijani
cyrine tijani on 30 Apr 2021
Edited: cyrine tijani on 30 Apr 2021
hi it worked but i have a little problem the second image appear all black while it shouldn't , here's the code and the interface in the photo bellow if you have a solution please tell me
I don't see anything obviously wrong from the picture. I'd have to be able to run the code and see the particular images to troubleshoot further.

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Asked:

on 30 Apr 2021

Commented:

DGM
on 30 Apr 2021

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