[Image-SIG] Digital Number
fredrik at pythonware.com
Mon Nov 8 10:01:06 CET 2010
On Sun, Sep 19, 2010 at 12:19 PM, <majoris.ursae at yahoo.co.uk> wrote:
> How to read pixel wise Digital Number (DN) of a JPG image using PIL?
You mean "Digital Number" in the ancient GIS sense? I.e. simply the
value of a pixel?
The simplest way is to use getpixel(pos) where pos is a (x, y) tuple:
If you need to read more than a few pixels, calling load() to get an
access object is more efficient:
More information about the Image-SIG