Hello everyone, I want to localize the iris and pupil in eye image. I used the circle how transforms of opencv, but I can't estimate the correct parameters' values. If there is any way to correctly estimation parameters, please tell me how?? Or Are there any mistake in the following my code?
the original image : [C:\fakepath\img_10_1_1.jpg](/upfiles/14471394799364387.jpg)
canny image: [C:\fakepath\20151109232057.jpg](/upfiles/14471401584037078.jpg)
and I didn't get any circle.
the code:
//convert image to gray
org.opencv.imgproc.Imgproc.cvtColor(mRgba, imgCny, Imgproc.COLOR_RGB2GRAY);
//apply threshold and morphology
org.opencv.imgproc.Imgproc.threshold(imgCny, imgCny, 150, 150, Imgproc.THRESH_BINARY);
org.opencv.imgproc.Imgproc.morphologyEx(imgCny, imgCny, Imgproc.MORPH_CLOSE,Imgproc.getStructuringElement(Imgproc.MORPH_RECT, new Size(3, 3)));
org.opencv.imgproc.Imgproc.morphologyEx(imgCny,imgCny,Imgproc.MORPH_ERODE ,Imgproc.getStructuringElement(Imgproc.MORPH_RECT,new Size(3,3) ));
//canny
org.opencv.imgproc.Imgproc.Canny(imgCny, imgCny, 10,30 );
//Hough Circles
org.opencv.imgproc.Imgproc.HoughCircles(imgCny,circles, Imgproc.CV_HOUGH_GRADIENT,1,imgCny.rows()/8,100,300,2,400);
//draw circle
if(!circles.empty()){
for (int i=0; i < circles.cols();i++){
double vCircle[] = circles.get(0,i);
pt = new Point((int) Math.round((vCircle[0])),(int) Math.round((vCircle[1])));
int radius = (int) Math.round(vCircle[2] );
Core.circle(mRgba, pt, radius, new Scalar(0,255,0),3);
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