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how to find parabola from a grayscale image

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Namrata
Namrata am 7 Feb. 2011
What is the procedure/code to find parabolas from a rectangular gray scale image? I am having normalized iris image rubber sheet model and from them eyelids are needed to be separated. This eyelids are in the shape of parabola.

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Walter Roberson
Walter Roberson am 7 Feb. 2011
Please see this Matlab File Exchange contribution #15841
You may also wish to read this theory document

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