title: How to create a loop to read several images in a python script?
body: <p>I use python to work with image processing. I'm used to cut, draw and other things, but for one image. Like in the script below, how can i aply a loop in the script to do for several images?</p>
  
  <pre><code>import PIL
  
  import Image
  
  im=Image.open('test.tif')
  
  box=(50, 50, 200, 200)
  
  im_crop=im.crop(box)
  
  im_crop.show()
  </code></pre>