Iris Extraction
Posted: 2013-06-26T23:20:12-07:00
Hi...
I have faced a problem in preprocessing step in iris Extraction.
Algorithm used for iris extraction works good for some images.
For my images it produced poor output(Ex: Hough Transform could not find circle in my image).
Is there any step apply before smoothening the image??
My algorithm works fine for the following image
![Image](https://lh4.googleusercontent.com/-Su98ts_CxLM/UcvX1UiTLqI/AAAAAAAABUo/UajU3ZymeiU/w320-h280-no/014_1_1.bmp)
The same algorithm produce poor output for the following image
![Image](https://lh3.googleusercontent.com/-OgzTjb5PHZk/UcvXgQKuV_I/AAAAAAAABUE/W_oU4Ze_kwg/w506-h380-o/P03_01_01.bmp)
Please guide me.
I have faced a problem in preprocessing step in iris Extraction.
Algorithm used for iris extraction works good for some images.
For my images it produced poor output(Ex: Hough Transform could not find circle in my image).
Is there any step apply before smoothening the image??
My algorithm works fine for the following image
![Image](https://lh4.googleusercontent.com/-Su98ts_CxLM/UcvX1UiTLqI/AAAAAAAABUo/UajU3ZymeiU/w320-h280-no/014_1_1.bmp)
The same algorithm produce poor output for the following image
![Image](https://lh3.googleusercontent.com/-OgzTjb5PHZk/UcvXgQKuV_I/AAAAAAAABUE/W_oU4Ze_kwg/w506-h380-o/P03_01_01.bmp)
Please guide me.