Cut a .JPG image

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Riccardo Rossi
Riccardo Rossi 2019-2-19
编辑： KSSV 2019-2-19
Hi everybody,
i would like to cut a .JPG image. To do this i used that script but it does not run:
X=imread('C:\Users\Utente\Desktop\DSC_0183.JPG');
[columns,rows,colors]=size(X);
X2 = imcrop(X,[400, 1, rows-400, columns]);
imshow(X2)
With X=my image and X2=new image
and 400, 1=coordinates of the upper left corner of the specified rectangle
and rows-400, columns= coordinates of the bottom right corner of the specified rectangle.
In particular the image (X2) is correctly cut to the left but not to the right. How can i resolve it?
Thank you!!

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回答（1 个）

KSSV
KSSV 2019-2-19
Select your region manually.
X=imread('C:\Users\Utente\Desktop\DSC_0183.JPG');
[columns,rows,colors]=size(X);
X2 = imcrop(X);
imshow(X2)
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Riccardo Rossi
Riccardo Rossi 2019-2-19
I cut it manually and the X,Y rectangle coordinates are:
400, 1 (upper left corner);
2592, 1 (upper right corner);
400,2000 (bottom left corner);
2592, 2000 (bottom right corner)
How can i write the script to do this automatically?
KSSV
KSSV 2019-2-19
编辑：KSSV 2019-2-19
X=imread('C:\Users\Utente\Desktop\DSC_0183.JPG');
[columns,rows,colors]=size(X);
[X2,R] = imcrop(X);
imshow(X2)
X3 = imcrop(X,R);
imshow(X3)

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