本文实例为大家分享了OpenCV实现拼接图像的具体方法,供大家参考,具体内容如下
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用iphone拍摄的两幅图像:
拼接后的图像:
相关代码如下:
//读取图像 Mat leftImg=imread("left.jpg"); Mat rightImg=imread("right.jpg"); if(leftImg.data==NULL||rightImg.data==NULL) return; //转化成灰度图 Mat leftGray; Mat rightGray; cvtColor(leftImg,leftGray,CV_BGR2GRAY); cvtColor(rightImg,rightGray,CV_BGR2GRAY); //获取两幅图像的共同特征点 int minHessian=400; SurfFeatureDetector detector(minHessian); vectorleftKeyPoints,rightKeyPoints; detector.detect(leftGray,leftKeyPoints); detector.detect(rightGray,rightKeyPoints); SurfDescriptorExtractor extractor; Mat leftDescriptor,rightDescriptor; extractor.compute(leftGray,leftKeyPoints,leftDescriptor); extractor.compute(rightGray,rightKeyPoints,rightDescriptor); FlannBasedMatcher matcher; vector matches; matcher.match(leftDescriptor,rightDescriptor,matches); int matchCount=leftDescriptor.rows; if(matchCount>15) { matchCount=15; sort(matches.begin(),matches.begin()+leftDescriptor.rows,DistanceLessThan); } vector leftPoints; vector rightPoints; for(int i=0; i (3,3)<<1.0,0,leftImg.cols, 0,1.0,0, 0,0,1.0); //拼接图像 Mat tiledImg; warpPerspective(leftImg,tiledImg,shftMat*homo,Size(leftImg.cols+rightImg.cols,rightImg.rows)); rightImg.copyTo(Mat(tiledImg,Rect(leftImg.cols,0,rightImg.cols,rightImg.rows))); //保存图像 imwrite("tiled.jpg",tiledImg); //显示拼接的图像 imshow("tiled image",tiledImg); waitKey(0);
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