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1 OpenCV v

3 3 I C++ API 5 1 cv::mat XML/YAML Features2d Highgui Kinect Index 16

5 I C++ API

7 7 1 cv::mat. 1.1 Mat img = imread(filename); jpg 3 Mat img = imread(filename, 0); Mat img = imwrite(filename); XML/YAML 1.2 8UC1 x, y Scalar intensity = img.at<uchar>(x, y); intensity.val[0] bgr 3 imread Vec3b intensity = img.at<vec3b>(x, y); uchar blue = intensity.val[0]; uchar green = intensity.val[1]; uchar red = intensity.val[2];

8 8 1 cv::mat. 3 Sobel Vec3f intensity = img.at<vec3f>(x, y); float blue = intensity.val[0]; float green = intensity.val[1]; float red = intensity.val[2]; img.at<uchar>(x, y) = 128; OpenCV 2 3 Mat calib3d projectpoints FC2 32FC3 std::vector vector<point2f> points; //... Mat pointsmat = Mat(points); Mat::at Point2f point = pointsmat.at<point2f>(i, 0); Mat Mat Mat Mat 2 std::vector<point3f> points; //... Mat pointsmat = Mat(points).reshape(1); 1 32FC3 3 32FC1 pointsmat points points pointsmat Mat::copyTo Mat::clone Mat img = imread("image.jpg"); Mat img1 = img.clone(); C API Mat Mat::create

9 Mat img = imread("image.jpg"); Mat sobelx; Sobel(img, sobelx, CV_32F, 1, 0); img img = Scalar(0); ROI Rect r(10, 10, 100, 100); Mat smallimg = img(r); Mat C API Mat img = imread("image.jpg"); IplImage img1 = img; CvMat m = img; Mat img = imread("image.jpg"); // 8UC3 Mat grey; cvtcolor(img, grey, CV_BGR2GRAY); 8UC1 32FC1 convertto(src, dst, CV_32F); OpenCV 8U Mat img = imread("image.jpg"); namedwindow("image", CV_WINDOW_AUTOSIZE); imshow("image", img); waitkey();

10 10 1 cv::mat. waitkey() "image" 32F 8U Mat img = imread("image.jpg"); Mat grey; cvtcolor(img, grey, CV_BGR2GREY); Mat sobelx; Sobel(grey, sobelx, CV_32F, 1, 0); double minval, maxval; minmaxloc(sobelx, &minval, &maxval); // Mat draw; sobelx.convertto(draw, CV_8U, 255.0/(maxVal - minval), -minval); namedwindow("image", CV_WINDOW_AUTOSIZE); imshow("image", draw); waitkey();

11 11 2 Features2d opencv/samples/cpp/matcher simple.cpp Mat img1 = imread(argv[1], CV_LOAD_IMAGE_GRAYSCALE); Mat img2 = imread(argv[2], CV_LOAD_IMAGE_GRAYSCALE); if(img1.empty() img2.empty()) { printf("can t read one of the images\n"); return -1; } // SurfFeatureDetector detector(400); vector<keypoint> keypoints1, keypoints2; detector.detect(img1, keypoints1); detector.detect(img2, keypoints2); // SurfDescriptorExtractor extractor; Mat descriptors1, descriptors2; extractor.compute(img1, keypoints1, descriptors1); extractor.compute(img2, keypoints2, descriptors2); // BruteForceMatcher<L2<float> > matcher; vector<dmatch> matches; matcher.match(descriptors1, descriptors2, matches); // namedwindow("matches", 1); Mat img_matches; drawmatches(img1, keypoints1, img2, keypoints2, matches, img_matches);

12 12 2 Features2d. imshow("matches", img_matches); waitkey(0); Mat img1 = imread(argv[1], CV_LOAD_IMAGE_GRAYSCALE); Mat img2 = imread(argv[2], CV_LOAD_IMAGE_GRAYSCALE); if(img1.empty() img2.empty()) { printf("can t read one of the images\n"); return -1; } 2 // FastFeatureDetector detector(15); vector<keypoint> keypoints1, keypoints2; detector.detect(img1, keypoints1); detector.detect(img2, keypoints2); FeatureDetector 1 1 // SurfDescriptorExtractor extractor; Mat descriptors1, descriptors2; extractor.compute(img1, keypoints1, descriptors1); extractor.compute(img2, keypoints2, descriptors2); OpenCV DescriptorExtractor DescriptorExtractor::compute Mat i- i 1 FAST [0, 40] SURF Hessian 100

13 // BruteForceMatcher<L2<float> > matcher; vector<dmatch> matches; matcher.match(descriptors1, descriptors2, matches); matcher Brief matches // namedwindow("matches", 1); Mat img_matches; drawmatches(img1, keypoints1, img2, keypoints2, matches, img_matches); imshow("matches", img_matches); waitkey(0);

15 15 3 Highgui. 3.1 Kinect Kinect VideoCapture VideoCapture depth rgb Kinect OpenCV Kinect 1) OpenNI PrimeSensor Module for OpenNI downloadfiles OpenNI: Linux & MacOSX: Libs into: /usr/lib Includes into: /usr/include/ni Windows: Libs into: c:/program Files/OpenNI/Lib Includes into: c:/program Files/OpenNI/Include PrimeSensor Module: Linux & MacOSX: Bins into: /usr/bin Windows: Bins into: c:/program Files/Prime Sense/Sensor/Bin CMake OPENNI LIB DIR, OPENNI INCLUDE DIR / OPENNI PRIME SENS 2) CMake WITH OPENNI OpenCV OpenNI OpenNI OpenCV PrimeSensor Module OpenNI PrimeSensor Module CMake PrimeSensor Module OpenCV OpenNI VideoCapture Kinect 3) Build OpenCV. VideoCapture Kinect a.) depth OPENNI_DEPTH_MAP - mm depth (CV_16UC1)

16 16 3 Highgui. OPENNI_POINT_CLOUD_MAP OPENNI_DISPARITY_MAP OPENNI_DISPARITY_MAP_32F OPENNI_VALID_DEPTH_MASK b.) RGB OPENNI_BGR_IMAGE OPENNI_GRAY_IMAGE - m XYZ (CV_32FC3) - (CV_8UC1) - (CV_32FC1) -. (CV_8UC1) - (CV_8UC3) - (CV_8UC1) Kinect depth VideoCapture::operator >> VideoCapture capture(0); // CV_CAP_OPENNI for(;;) { Mat depthmap; capture >> depthmap; } if( waitkey( 30 ) >= 0 ) break; Kinect VideoCapture::grab + VideoCapture::retrieve VideoCapture capture(0); // CV_CAP_OPENNI for(;;) { Mat depthmap; Mat rgbimage capture.grab(); capture.retrieve( depthmap, OPENNI_DEPTH_MAP ); capture.retrieve( bgrimage, OPENNI_BGR_IMAGE ); } if( waitkey( 30 ) >= 0 ) break; sample kinect maps.cpp

OpenCV IS Report No Report Medical Information System Labratry

OpenCV IS Report No Report Medical Information System Labratry OpenCV 2014 8 25 IS Report No. 2014090201 Report Medical Information System Labratry Abstract OpenCV OpenCV 1............................ 2 1.1 OpenCV.......................... 2 1.2......................