a long horizontal bar to scan an image

    Feb 10 2013 | 1:02 am
    I was wondering how do I go about scanning and extracting values from an image from top to bottom - for example, where physically a long horizontal bar will slowly move down the image ?
    I know how to extract pixel data from an image but I can't seem to figure out how to properly scan (where I could actually see the scanning bar or something like moves top to bottom ) an image that automatically gives me the values.

    • Feb 11 2013 | 10:14 pm
      lots of ways to do this, easiest might be jit.submatrix.
    • Jun 08 2013 | 7:07 am
      i think an c# image scanner will help you to retrieve values and pixel, so you don't need a bar. it will do immediately after a click.