📅  最后修改于: 2020-12-14 05:39:38             🧑  作者: Mango
在本章中,我们将高斯滤镜应用于使图像模糊的图像。我们将使用OpenCV函数GaussianBlur将高斯滤波器应用于图像。可以在Imgproc软件包下找到。其语法如下-
Imgproc.GaussianBlur(source, destination,Size,SigmaX);
函数参数描述如下-
Sr.No. | Argument & Description |
---|---|
1 |
source It is source image. |
2 |
destination It is destination image. |
3 |
Size It is Gaussian kernel size. |
4 |
SigmaX It is Gaussian kernel standard deviation in X direction. |
除了GaussianBlur方法外,Imgproc类还提供其他方法。他们简要描述-
Sr.No. | Method & Description |
---|---|
1 |
cvtColor(Mat src, Mat dst, int code, int dstCn) It converts an image from one color space to another. |
2 |
dilate(Mat src, Mat dst, Mat kernel) It dilates an image by using a specific structuring element. |
3 |
equalizeHist(Mat src, Mat dst) It equalizes the histogram of a grayscale image. |
4 |
filter2D(Mat src, Mat dst, int depth, Mat kernel, Point anchor, double delta) It convolves an image with the kernel. |
5 |
GaussianBlur(Mat src, Mat dst, Size ksize, double sigmaX) It blurs an image using a Gaussian filter. |
6 |
integral(Mat src, Mat sum) It calculates the integral of an image. |
下面的示例演示如何使用Imgproc类将高斯滤波器应用于图像。
import org.opencv.core.Core;
import org.opencv.core.CvType;
import org.opencv.core.Mat;
import org.opencv.core.Size;
import org.opencv.highgui.Highgui;
import org.opencv.imgproc.Imgproc;
public class Main {
public static void main( String[] args ) {
try {
System.loadLibrary( Core.NATIVE_LIBRARY_NAME );
Mat source = Highgui.imread("digital_image_processing.jpg",
Highgui.CV_LOAD_IMAGE_COLOR);
Mat destination = new Mat(source.rows(),source.cols(),source.type());
Imgproc.GaussianBlur(source, destination,new Size(45,45), 0);
Highgui.imwrite("Gaussian45.jpg", destination);
} catch (Exception e) {
System.out.println("Error:" + e.getMessage());
}
}
}
当您执行给定的代码时,将看到以下输出-
当此原始图像与大小为11和45的高斯滤波器卷积时,可以看到以下输出。