title: Copying a part of Simd::View
body: <p>I use <a href="http://ermig1979.github.io/Simd/help/struct_simd_1_1_view.html" rel="nofollow noreferrer">Simd::View</a> class from <a href="http://github.com/ermig1979/Simd" rel="nofollow noreferrer">Simd Library</a>. It is a container which holds an image. I need to copy a part (the right bottom corner) of image into another image.</p>
  
  <p>As I know there is a function <a href="http://ermig1979.github.io/Simd/help/group__copying.html#gadc21a4c5957a3e002edaa04721d952e2" rel="nofollow noreferrer">Simd::Copy</a> which allows to copy one image to other. But it copies image as whole. Of course I could write my own function to do this. But maybe anybody know any good-looking solution of this question?</p>