title: How to crop rows and columns of pixels out in MATLAB
body: <p>I have an image with a white border around it, and I need to get rid of the border.  There are 20 rows of white pixels above the image, 5 columns of white to the left, 5 of white columns to the right, and 5 rows of white below the image.  I wan't to crop the image exactly out of that border, how do I do this in matlab?  Thanks for any help you can give!</p>
  
  <p>(The image is a tiff, which is why I can't use an online service for this, they won't let me upload .tiff)</p>