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normalization image

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  normalization  image mhd62976@gmail.com - 2016-04-21 01:45 -0700
    Re: normalization  image Martin Leese <please@see.Web.for.e-mail.INVALID> - 2016-04-21 12:54 -0600

#4119 — normalization image

when we do normalization for image i.e r=R/(R+G+B)
some times in  the pixel we get 0/0...then what shall we do

ignor this pixel? or replace it by zero or replace this pixel by small number

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#4120

mhd62976@gmail.com wrote:
> when we do normalization for image i.e r=R/(R+G+B)
> some times in  the pixel we get 0/0...then what shall we do
> 
> ignor this pixel? or replace it by zero or replace this pixel by small number

What would you like to do?  Mathematically,
0/0 is undefined, so there is no correct way
to handle it.  What you do is whatever is
best for your particular image data and your
particular use of that data.

Note that you can't use L'Hôpital's rule
because you don't know in what direction to
estimate the derivatives (assuming that
derivatives even make sense for your
particular image data).

-- 
Regards,
Martin Leese
E-mail: please@see.Web.for.e-mail.INVALID
Web: http://members.tripod.com/martin_leese/

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