本文整理汇总了Java中org.opencv.core.Core.convertScaleAbs方法的典型用法代码示例。如果您正苦于以下问题：Java Core.convertScaleAbs方法的具体用法？Java Core.convertScaleAbs怎么用？Java Core.convertScaleAbs使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.opencv.core.Core的用法示例。
在下文中一共展示了Core.convertScaleAbs方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: Sobel
import org.opencv.core.Core; //导入方法依赖的package包/类
void Sobel() {
Mat grayMat = new Mat();
Mat sobel = new Mat(); //Mat to store the final result
//Matrices to store gradient and absolute gradient respectively
Mat grad_x = new Mat();
Mat abs_grad_x = new Mat();
Mat grad_y = new Mat();
Mat abs_grad_y = new Mat();
//Converting the image to grayscale
Imgproc.cvtColor(originalMat, grayMat, Imgproc.COLOR_BGR2GRAY);
//Calculating gradient in horizontal direction
Imgproc.Sobel(grayMat, grad_x, CvType.CV_16S, 1, 0, 3, 1, 0);
//Calculating gradient in vertical direction
Imgproc.Sobel(grayMat, grad_y, CvType.CV_16S, 0, 1, 3, 1, 0);
//Calculating absolute value of gradients in both the direction
Core.convertScaleAbs(grad_x, abs_grad_x);
Core.convertScaleAbs(grad_y, abs_grad_y);
//Calculating the resultant gradient
Core.addWeighted(abs_grad_x, 0.5, abs_grad_y, 0.5, 1, sobel);
//Converting Mat back to Bitmap
Utils.matToBitmap(sobel, currentBitmap);
imageView.setImageBitmap(currentBitmap);
}
示例2: LaplacianContrast
import org.opencv.core.Core; //导入方法依赖的package包/类
public static Mat LaplacianContrast(Mat img) {
Mat laplacian = new Mat();
Imgproc.Laplacian(img, laplacian, img.depth());
//Imgproc.Laplacian(img, laplacian, img.depth(), 3, 1, 0);
Core.convertScaleAbs(laplacian, laplacian);
return laplacian;
}
示例3: HarrisCorner
import org.opencv.core.Core; //导入方法依赖的package包/类
void HarrisCorner() {
Mat grayMat = new Mat();
Mat corners = new Mat();
//Converting the image to grayscale
Imgproc.cvtColor(originalMat, grayMat, Imgproc.COLOR_BGR2GRAY);
Mat tempDst = new Mat();
//finding contours
Imgproc.cornerHarris(grayMat, tempDst, 2, 3, 0.04);
//Normalizing harris corner's output
Mat tempDstNorm = new Mat();
Core.normalize(tempDst, tempDstNorm, 0, 255, Core.NORM_MINMAX);
Core.convertScaleAbs(tempDstNorm, corners);
//Drawing corners on a new image
Random r = new Random();
for (int i = 0; i < tempDstNorm.cols(); i++) {
for (int j = 0; j < tempDstNorm.rows(); j++) {
double[] value = tempDstNorm.get(j, i);
if (value[0] > 150)
Imgproc.circle(corners, new Point(i, j), 5, new Scalar(r.nextInt(255)), 2);
}
}
//Converting Mat back to Bitmap
Utils.matToBitmap(corners, currentBitmap);
imageView.setImageBitmap(currentBitmap);
}