how to cut an area of image ?

I want to cut the center area of an image , and save it as another image that ill work on it later . how can I do so , I do know a function " imcrop() " but I dont know how to detect the center of the image . heres an exemple of what I want :

Answer 1

[Image Analyst]

Try this:

[rows, columns, numberOfColorChannels] = size(yourImage);
left = columns/2 - width/2;
top = rows/2 - height/2;
croppedImage = imcrop(yourImage, [left, top, width, height]);
imshow(croppedImage);

You need to define width and height in pixels for the size of the box you want to crop out.

[Zineb EL MORCHID]

Thanks , I appreciate it :)