• normalization image

    From mhd62976@gmail.com@21:1/5 to All on Thu Apr 21 01:45:16 2016
    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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  • From Martin Leese@21:1/5 to mhd62976@gmail.com on Thu Apr 21 12:54:40 2016
    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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