本文整理匯總了Java中org.opencv.core.Mat.create方法的典型用法代碼示例。如果您正苦於以下問題：Java Mat.create方法的具體用法？Java Mat.create怎麽用？Java Mat.create使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類org.opencv.core.Mat的用法示例。
在下文中一共展示了Mat.create方法的4個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: HoughLines
import org.opencv.core.Mat; //導入方法依賴的package包/類
void HoughLines() {
Mat grayMat = new Mat();
Mat cannyEdges = new Mat();
Mat lines = new Mat();
//Converting the image to grayscale
Imgproc.cvtColor(originalMat, grayMat, Imgproc.COLOR_BGR2GRAY);
Imgproc.Canny(grayMat, cannyEdges, 10, 100);
Imgproc.HoughLinesP(cannyEdges, lines, 1, Math.PI / 180, 50, 20, 20);
Mat houghLines = new Mat();
houghLines.create(cannyEdges.rows(), cannyEdges.cols(), CvType.CV_8UC1);
//Drawing lines on the image
for (int i = 0; i < lines.cols(); i++) {
double[] points = lines.get(0, i);
double x1, y1, x2, y2;
x1 = points[0];
y1 = points[1];
x2 = points[2];
y2 = points[3];
Point pt1 = new Point(x1, y1);
Point pt2 = new Point(x2, y2);
//Drawing lines on an image
Imgproc.line(houghLines, pt1, pt2, new Scalar(255, 0, 0), 1);
}
//Converting Mat back to Bitmap
Utils.matToBitmap(houghLines, currentBitmap);
imageView.setImageBitmap(currentBitmap);
}
示例2: Contours
import org.opencv.core.Mat; //導入方法依賴的package包/類
void Contours() {
Mat grayMat = new Mat();
Mat cannyEdges = new Mat();
Mat hierarchy = new Mat();
List<MatOfPoint> contourList = new ArrayList<MatOfPoint>(); //A list to store all the contours
//Converting the image to grayscale
Imgproc.cvtColor(originalMat, grayMat, Imgproc.COLOR_BGR2GRAY);
Imgproc.Canny(originalMat, cannyEdges, 10, 100);
//finding contours
Imgproc.findContours(cannyEdges, contourList, hierarchy, Imgproc.RETR_LIST, Imgproc.CHAIN_APPROX_SIMPLE);
//Drawing contours on a new image
Mat contours = new Mat();
contours.create(cannyEdges.rows(), cannyEdges.cols(), CvType.CV_8UC3);
Random r = new Random();
for (int i = 0; i < contourList.size(); i++) {
Imgproc.drawContours(contours, contourList, i, new Scalar(r.nextInt(255), r.nextInt(255), r.nextInt(255)), -1);
}
//Converting Mat back to Bitmap
Utils.matToBitmap(contours, currentBitmap);
imageView.setImageBitmap(currentBitmap);
}
示例3: HoughCircles
import org.opencv.core.Mat; //導入方法依賴的package包/類
void HoughCircles() {
Mat grayMat = new Mat();
Mat cannyEdges = new Mat();
Mat circles = new Mat();
//Converting the image to grayscale
Imgproc.cvtColor(originalMat, grayMat, Imgproc.COLOR_BGR2GRAY);
Imgproc.Canny(grayMat, cannyEdges, 10, 100);
Imgproc.HoughCircles(cannyEdges, circles, Imgproc.CV_HOUGH_GRADIENT, 1, cannyEdges.rows() / 15);//, grayMat.rows() / 8);
Mat houghCircles = new Mat();
houghCircles.create(cannyEdges.rows(), cannyEdges.cols(), CvType.CV_8UC1);
//Drawing lines on the image
for (int i = 0; i < circles.cols(); i++) {
double[] parameters = circles.get(0, i);
double x, y;
int r;
x = parameters[0];
y = parameters[1];
r = (int) parameters[2];
Point center = new Point(x, y);
//Drawing circles on an image
Imgproc.circle(houghCircles, center, r, new Scalar(255, 0, 0), 1);
}
//Converting Mat back to Bitmap
Utils.matToBitmap(houghCircles, currentBitmap);
imageView.setImageBitmap(currentBitmap);
}
示例4: criarImagem
import org.opencv.core.Mat; //導入方法依賴的package包/類
public static void criarImagem(Mat imagem, Mat m) {
imagem.create(m.width()*2, m.height()*2, m.type());
}