[Date Index] [Thread Index] [Author Index]

Re: neighborhood operations on image

• To: mathgroup at smc.vnet.net
• Subject: [mg129461] Re: neighborhood operations on image
• From: Bob Hanlon <hanlonr357 at gmail.com>
• Date: Wed, 16 Jan 2013 01:36:02 -0500 (EST)
• Delivered-to: l-mathgroup@mail-archive0.wolfram.com
• Delivered-to: l-mathgroup@wolfram.com
• Delivered-to: mathgroup-newout@smc.vnet.net
• Delivered-to: mathgroup-newsend@smc.vnet.net
• References: <20130115043245.54DC2698A@smc.vnet.net>

?ImageFilter

ImageFilter[f,image,r] applies the function f to the range-r
neighborhood of each pixel in each channel of image. >>

http://reference.wolfram.com/mathematica/ref/ImageFilter.html


Bob Hanlon


On Mon, Jan 14, 2013 at 11:32 PM,  <siddys at gmail.com> wrote:
> I am really impressed by the new set of image processing operations in Mathematica 9. I am, however, having trouble defining my own operations, and one of the things I do very frequently in another system, is neighborhood operations.  I would like to do these things in Mathematica,and would like so help:
>
> How do I define a function that takes an Image, and performs operations, say, on a 3x3 nbdh for all pixels. I would like to use the functional programming paradigm. Filter is one such operation. I would love to see how Mathematica does it internally, but I am not able to find it.
>
> Any help would be highly appreciated.
> Thanks,
> Sid
>

• References:
  • neighborhood operations on image
    • From: siddys@gmail.com