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																@@ -93,7 +93,7 @@ public class CornerCheck { 
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																             Mat grad = new Mat(); 
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																             Mat grad = new Mat(); 
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																             Core.addWeighted(abs_grad_x, 0.5, abs_grad_y, 0.5, 0, grad); 
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																             Core.addWeighted(abs_grad_x, 0.5, abs_grad_y, 0.5, 0, grad); 
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																             Imgcodecs.imwrite("D:\\data\\shark.jpg", grad); 
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																             Imgcodecs.imwrite("D:\\data\\shark.jpg", grad); 
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																-            Imgproc.goodFeaturesToTrack(grad, corners, maxCorners, qualityLevel, minDistance, new Mat(new Size(grad.width(), grad.height()), CvType.CV_8UC1), blockSize, useHarrisDetector, k); 
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																+            Imgproc.goodFeaturesToTrack(grad, corners, maxCorners, qualityLevel, minDistance, new Mat(), blockSize, useHarrisDetector, k); 
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																             Point[] pCorners = corners.toArray(); 
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																             Point[] pCorners = corners.toArray(); 
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																             List<Point> pointList = new ArrayList<>(); 
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																             List<Point> pointList = new ArrayList<>(); 
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																             double maxX = 0d; 
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																             double maxX = 0d; 
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																@@ -177,19 +177,19 @@ public class CornerCheck { 
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																         try { 
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																         try { 
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																             System.loadLibrary(Core.NATIVE_LIBRARY_NAME); 
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																             System.loadLibrary(Core.NATIVE_LIBRARY_NAME); 
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																-            final int maxCorners = 50, blockSize = 3; 
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																-            final double qualityLevel = 0.01, minDistance = 10.0, k = 0.04; 
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																+            final int maxCorners = 50, blockSize = 5; 
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																+            final double qualityLevel = 0.04, minDistance = 10.0, k = 0.04; 
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																             final boolean useHarrisDetector = false; 
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																             final boolean useHarrisDetector = false; 
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																             MatOfPoint corners = new MatOfPoint(); 
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																             MatOfPoint corners = new MatOfPoint(); 
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																             Mat src = Imgcodecs.imread(filePath); 
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																             Mat src = Imgcodecs.imread(filePath); 
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																-//            for (int i=0;i<src.cols();i++){ 
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																-//                for(int j=0;j<src.rows();j++){ 
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																-//                    if (i > 160 && i < 470 && j > 250 && j < 750) { 
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																-//                        Imgproc.circle(src, new Point(i,j), 1, new Scalar(0, 236, 2), Imgproc.FILLED); 
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																-//                    } 
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																-//                } 
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																-//            } 
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																+            for (int i = 0; i < src.cols(); i++) { 
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																+                for (int j = 0; j < src.rows(); j++) { 
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																+                    if (i > 160 && i < 470 && j > 250 && j < 750) { 
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																+                        Imgproc.circle(src, new Point(i, j), 1, new Scalar(0, 236, 2), Imgproc.FILLED); 
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																+                    } 
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																+                } 
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																+            } 
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																             //卷积 
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																             //卷积 
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																             Mat kernel = new Mat(3, 3, CvType.CV_16SC1); 
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																             Mat kernel = new Mat(3, 3, CvType.CV_16SC1); 
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																             kernel.put(0, 0, 0, -1, 0, -1, 5, -1, 0, -1, 0); 
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																             kernel.put(0, 0, 0, -1, 0, -1, 5, -1, 0, -1, 0); 
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