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MathGroup Archive 2002

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Inquery(Partial Differentiation)

  • To: mathgroup at smc.vnet.net
  • Subject: [mg34045] Inquery(Partial Differentiation)
  • From: Gagan Anand <anand_gagan at yahoo.com>
  • Date: Sun, 28 Apr 2002 03:46:38 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

    I am working to Gray-scale image files(TIFF) , I
need to calculate the Orientiation of the Pixels , for
that I need to calculate Directional Filed Estimation.
For Directional Field Estimation I need to fined the
Gradient.
Gradient can be calculated by Partial Differentiation.
Can you help me out to calculate Partial
Diffrenetiation at each pixel, I am clear with the
formulae of Partial Differentiation, but how to
Implement it.
             Thank You,
                              GAGAN ANAND 

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