title: How to reorder pixels
body: <p>I have searched on Google but I couldn't find anything. </p>
  
  <p>I want to create a Python script that can import an image, change the order of pixels, and save an output image.</p>
  
  <p>I have worked with Python a lot, but only with the built-in libraries. So if I have to use new commands, please describe it as much as you can.</p>