--------------阅读下面的编辑--------------- 我正在尝试检测各种图像中瞳孔和虹膜的边缘。我正在更改参数等,但我只能设法让一个虹膜/瞳孔轮廓正确,或者在背景中获得不必要的轮廓,或者根本没有。是我应该尝试获得正确轮廓的一些特定参数。或者有没有一种方法可以将图像裁剪到眼睛上,以便系统可以专注于该部分?
这是我的更新方法:
private void findPupilIris() throws IOException {
//converts and saves image in grayscale
Mat newimg = Imgcodecs.imread("/Users/.../pic.jpg");
Mat des = new Mat(newimg.rows(), newimg.cols(), newimg.type());
Mat norm = new Mat();
Imgproc.cvtColor(newimg, des, Imgproc.COLOR_BGR2HSV);
List<Mat> hsv = new ArrayList<Mat>();
Core.split(des, hsv);
Mat v = hsv.get(2); //gets the grey scale version
Imgcodecs.imwrite("/Users/Lisa-Maria/Documents/CapturedImages/B&Wpic.jpg", v); //only writes mats
CLAHE clahe = Imgproc.createCLAHE(2.0, new Size(8,8) ); //2.0, new Size(8,8)
clahe.apply(v,v);
// Imgproc.GaussianBlur(v, v, new Size(9,9), 3); //adds left pupil boundary and random circle on 'a'
// Imgproc.GaussianBlur(v, v, new Size(9,9), 13); //adds right outer iris boundary and random circle on 'a'
Imgproc.GaussianBlur(v, v, new Size(9,9), 7); //adds left outer iris boundary and random circle on left by hair
// Imgproc.GaussianBlur(v, v, new Size(7,7), 15);
Core.addWeighted(v, 1.5, v, -0.5, 0, v);
Imgcodecs.imwrite("/Users/.../after.jpg", v); //only writes mats
if (v != null) {
Mat circles = new Mat();
Imgproc.HoughCircles( v, circles, Imgproc.CV_HOUGH_GRADIENT, 2, v.rows(), 100, 20, 20, 200 );
List<MatOfPoint> contours = new ArrayList<MatOfPoint>();
System.out.println("circles.cols() " + circles.cols());
if(circles.cols() > 0) {
System.out.println("1");
for (int x = 0; x < circles.cols(); x++) {
System.out.println("2");
double vCircle[] = circles.get(0, x);
if(vCircle == null) {
break;
}
Point pt = new Point(Math.round(vCircle[0]), Math.round(vCircle[1]));
int radius = (int) Math.round(vCircle[2]);
//draw the found circle
Imgproc.circle(v, pt, radius, new Scalar(255,0,0),2); //newimg
//Imgproc.circle(des, pt, radius/3, new Scalar(225,0,0),2); //pupil
Imgcodecs.imwrite("/Users/.../Houghpic.jpg", v); //newimg
//draw the mask: white circle on black background
// Mat mask = new Mat( new Size( des.cols(), des.rows() ), CvType.CV_8UC1 );
// Imgproc.circle(mask, pt, radius, new Scalar(255,0,0),2);
// des.copyTo(des,mask);
// Imgcodecs.imwrite("/Users/..../mask.jpg", des); //newimg
Imgproc.logPolar(des, norm, pt, radius, Imgproc.WARP_FILL_OUTLIERS);
Imgcodecs.imwrite("/Users/..../Normalised.jpg",norm);
}
}
}
}
结果:霍夫图片