| 11. | This configuration captures light from the maximum range of angles and minimizes light noise due to specular reflections.
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| 12. | Further subroutines detect and exclude eyelids, eyelashes, and specular reflections that often occlude parts of the iris.
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| 13. | Lambertian reflection from polished surfaces are typically accompanied by specular reflection ( Phong, Cook-Torrance . etc.
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| 14. | And, when a colored object has both diffuse and specular reflection, usually only the diffuse component is colored.
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| 15. | A cherry reflects diffusely red light, absorbs all other colors and has a specular reflection which is essentially white.
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| 16. | Specular reflection reflects all light at the same angle, whereas diffuse reflection reflects in a broad range of directions.
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| 17. | Any combination of diffuse, glossy ( soft or scattered ), and specular reflection and transmission can be simulated.
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| 18. | Along with diffuse reflection ( already mentioned ), you might also want to see our article about specular reflection.
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| 19. | Accessories such as polarizers are expensive but allow extra control of unwanted specular reflections from the subject, for example.
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| 20. | It is possible to use specular reflection for crystallography, but often at high angles there is simply random scattering.
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