Re: Digital Number
Fredrik Lundh <[email protected]>
| Newsgroups | gmane.comp.python.image |
|---|---|
| Message-ID | <[email protected]> |
On Sun, Sep 19, 2010 at 12:19 PM, <[email protected]> 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: http://effbot.org/tag/PIL.Image.Image.getpixel If you need to read more than a few pixels, calling load() to get an access object is more efficient: http://effbot.org/tag/PIL.Image.Image.load </F> _______________________________________________ Image-SIG maillist - [email protected] http://mail.python.org/mailman/listinfo/image-sig