java 归一化_Java基于opencv—归一化
时间: 2023-10-25 18:25:52 浏览: 92
java下使用opencv
在Java中使用OpenCV库进行归一化操作可以通过以下步骤实现:
1.导入OpenCV库
```java
import org.opencv.core.Core;
import org.opencv.core.Mat;
import org.opencv.imgcodecs.Imgcodecs;
import org.opencv.imgproc.Imgproc;
```
2.读取图像
```java
String filename = "image.jpg";
Mat src = Imgcodecs.imread(filename, Imgcodecs.IMREAD_GRAYSCALE);
```
3.归一化操作
```java
Mat dst = new Mat();
Core.normalize(src, dst, 0, 255, Core.NORM_MINMAX);
```
其中,normalize方法的参数解释如下:
- src:输入矩阵
- dst:输出矩阵
- alpha:归一化范围的最小值
- beta:归一化范围的最大值
- norm_type:归一化类型,常用的为Core.NORM_MINMAX
4.保存图像
```java
String outputFilename = "normalized_image.jpg";
Imgcodecs.imwrite(outputFilename, dst);
```
完整代码示例:
```java
import org.opencv.core.Core;
import org.opencv.core.Mat;
import org.opencv.imgcodecs.Imgcodecs;
import org.opencv.imgproc.Imgproc;
public class NormalizationExample {
public static void main(String[] args) {
System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
String filename = "image.jpg";
Mat src = Imgcodecs.imread(filename, Imgcodecs.IMREAD_GRAYSCALE);
Mat dst = new Mat();
Core.normalize(src, dst, 0, 255, Core.NORM_MINMAX);
String outputFilename = "normalized_image.jpg";
Imgcodecs.imwrite(outputFilename, dst);
}
}
```
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