title: Create a new bitmap and draw new pixels into it
body: <p>I'm trying to make an app that will take two pictures you specify via editText, compare the colors of each pixel on both images and create a new picture (bitmap) (that you can save to the sd card) containing the differences between the two original pictures.</p>
  
  <p>I'm having a problem with creating this new bitmap. How can I achieve my goal? I don't really know how to do this, do I create the new bitmap first and then write into it, or do I get the differences first and then draw a bitmap from that? The pictures will be approx. 300x300 px.</p>