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How can I get red of the reflection spots?

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Alaa
Alaa on 28 May 2015
Commented: Alaa on 28 May 2015
Hi Please, I have these iris images and I want get red of the reflection spots. is there any suggestion?and I don't want to set their pixels values to zero, I'd like to be normal as their neighborhood pixels. Thank you in advance.

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Accepted Answer

Image Analyst
Image Analyst on 28 May 2015
Of course it's always better to get a good image to begin with rather than to repair a bad image, so to get rid of specular reflections you should use the well known technique of crossed polarizers. Put one in front of the light, and other in front of the lens and rotate it until the specular reflections go away.
Let me know if you are unwilling or unable to get a good image to begin with by using the method I highly suggest trying, and I can let you know of worse, inferior techniques to try to remove them in software, but post processing in software should NOT be your first line of attack.

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Alaa
Alaa on 28 May 2015
Dear Image Analysis Thanks a lot for your answer, but please can you give like a name of specific technique for (crossed polarizers) or even an example on it. In fact, I detect the pupil region and Iris region correctly, but still I need to get red of the reflection spots, due to its effects on recognition stage.
Alaa
Alaa on 28 May 2015
Many thanks sir Image analysis

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