Cut a .JPG image

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!!

Answer 1

[KSSV]

Select your region manually.

X=imread('C:\Users\Utente\Desktop\DSC_0183.JPG');
[columns,rows,colors]=size(X);
X2 = imcrop(X);  
imshow(X2)

[Riccardo Rossi]

Thank you for answering,

but i need to cut images automatically.

[KSSV]

Yes I can understand......first cut it manually..extract the exact locations and then try it using code. I suspect, you would have messed up with the locations where to cut.

[Riccardo Rossi]

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]

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)