Pet Photography "yellow eyes?"

Discussion in 'Photography' started by Jim Kilby, Dec 15, 2005.

  1. Jim Kilby

    Jim Kilby Guest

    I am always shooting pictures of my pets (digital camera). Sometimes their
    eyes look perfect other times their eyes are yellow (no red eye). What am I
    doing wrong?

    Jim Kilby, Dec 15, 2005
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  2. Jim Kilby

    Jasen Guest

    Nothing. Animals like dogs have a yellow reflection especially if you have a
    P&S camera. Their retinas act like a mirror to reflect light. Light that
    passes through the light sensitive layer of the retina is returned by
    reflection off a second layer called the tapetum lucidum. This increases
    their sensitivity to light so they can see better during the night, when
    dogs can be most active. The other times, I suspect, that you don't see
    this, is when they aren't directly looking at the camera?
    I use JASC Paintshop Photo Album 5 to remove my pets "redeye". I guess
    Photoshop and the like would do it too. Animals also will reflect more than
    we humans and even though you may use an off camera flash it may not get rid
    of all of the reflection if you take a direct eye to camera shot simply
    because their pupils may be open greater than ours usually are?
    Jasen, Dec 15, 2005
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  3. Jim Kilby

    Bobcat Guest

    With Photoshop the same rules apply for removing dogs' yelloweye (or
    greeneye in cats) as the ones for removing redeye in humans. You sample the
    normal dark colouration of the pupil and carefully mask the
    yelloweye/greeneye with it, but allow the reflective highlights to remain by
    adjusting the degree of opacity.
    Bobcat, Dec 15, 2005
  4. Jim Kilby

    Michael Guest


    There is not one perfect way. The best way like the other posts stated is to
    ovoid red eye when taking the picture by not using a direct forward flash.
    There are software programs which try red eye removal automatically, but it is
    still not a one click process. And for it to be done in an unnoticeable way
    each touch up requires different methods.

    A red eye removal example in Paint Shop Pro using Blend Mode;


    Here is some info on how to ovoid red eye when you take the photo;


    And this has a good explanation about the removal process and about
    the important white reflection part. It's for Photoshop,


    Michael, Dec 24, 2005
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