opencv3_java 添加mask掩码 AddMask

添加mask掩码 AddMask

package opencv_java_demo;import org.opencv.core.*;import org.opencv.imgcodecs.*;public class AddMask {private static Mat makeMask(Mat src){Size sz=new Size(src.width(),src.height());Mat mask=new Mat(sz,CvType.CV_8UC1);mask=Mat.zeros(sz, CvType.CV_8U);for(int y=src.height()/4;y<src.height()*3/4;y++){for(int x=src.height()/4;x<src.width()*3/4;x++){mask.put(y, x, 255);}}return mask;}public static void main(String[] args) {try{System.loadLibrary(Core.NATIVE_LIBRARY_NAME);Mat src1=Imgcodecs.imread("./images/lenna.jpg");Mat src2=Imgcodecs.imread("./images/Sobel.jpg");//读取图像到矩阵中if(src1.empty()||src2.empty()){throw new Exception("no file");}Mat dst = new Mat();Rect roiArea=new Rect(src1.width()/4,src1.height()/4,src1.width()/2,src1.height()/2);Mat mask=makeMask(src1);Core.add(src1, src2, dst,mask);Imgcodecs.imwrite("./images/AddMask1.jpg", dst);dst=src1.clone();Core.add(src1, src2,dst, mask);Imgcodecs.imwrite("./images/AddMask2.jpg", dst);}catch(Exception e){System.out.println("例外：" + e);}}}