init - 初始化项目

2022-05-06 01:58:53 +08:00
commit 90a5cc7cb6
6772 changed files with 2837787 additions and 0 deletions
--- a/samples/cpp/falsecolor.cpp
+++ b/samples/cpp/falsecolor.cpp
@@ -0,0 +1,110 @@
+#include "opencv2/imgproc.hpp"
+#include "opencv2/imgcodecs.hpp"
+#include "opencv2/highgui.hpp"
+#include <iostream>
+
+using namespace cv;
+using namespace std;
+
+enum MyShape{MyCIRCLE=0,MyRECTANGLE,MyELLIPSE};
+
+struct ParamColorMap {
+    int iColormap;
+    Mat img;
+};
+
+String winName="False color";
+static const String ColorMaps[] = { "Autumn", "Bone", "Jet", "Winter", "Rainbow", "Ocean", "Summer", "Spring",
+                                    "Cool", "HSV", "Pink", "Hot", "Parula", "Magma", "Inferno", "Plasma", "Viridis",
+                                    "Cividis", "Twilight", "Twilight Shifted", "Turbo", "User defined (random)" };
+
+static void TrackColorMap(int x, void *r)
+{
+    ParamColorMap *p = (ParamColorMap*)r;
+    Mat dst;
+    p->iColormap= x;
+    if (x == COLORMAP_TURBO + 1)
+    {
+        Mat lutRND(256, 1, CV_8UC3);
+        randu(lutRND, Scalar(0, 0, 0), Scalar(255, 255, 255));
+        applyColorMap(p->img, dst, lutRND);
+    }
+    else
+        applyColorMap(p->img,dst,p->iColormap);
+
+    putText(dst, "Colormap : "+ColorMaps[p->iColormap], Point(10, 20), FONT_HERSHEY_SIMPLEX, 0.8, Scalar(255, 255, 255),2);
+    imshow(winName, dst);
+}
+
+
+static Mat DrawMyImage(int thickness,int nbShape)
+{
+    Mat img=Mat::zeros(500,256*thickness+100,CV_8UC1);
+    int offsetx = 50, offsety = 25;
+    int lineLength = 50;
+
+    for (int i=0;i<256;i++)
+        line(img,Point(thickness*i+ offsetx, offsety),Point(thickness*i+ offsetx, offsety+ lineLength),Scalar(i), thickness);
+    RNG r;
+    Point center;
+    int radius;
+    int width,height;
+    int angle;
+    Rect rc;
+
+    for (int i=1;i<=nbShape;i++)
+    {
+        int typeShape = r.uniform(MyCIRCLE, MyELLIPSE+1);
+        switch (typeShape) {
+        case MyCIRCLE:
+            center = Point(r.uniform(offsetx,img.cols- offsetx), r.uniform(offsety + lineLength, img.rows - offsety));
+            radius = r.uniform(1, min(offsetx, offsety));
+            circle(img,center,radius,Scalar(i),-1);
+            break;
+        case MyRECTANGLE:
+            center = Point(r.uniform(offsetx, img.cols - offsetx), r.uniform(offsety + lineLength, img.rows - offsety));
+            width = r.uniform(1, min(offsetx, offsety));
+            height = r.uniform(1, min(offsetx, offsety));
+            rc = Rect(center-Point(width ,height )/2, center + Point(width , height )/2);
+            rectangle(img,rc, Scalar(i), -1);
+            break;
+        case MyELLIPSE:
+            center = Point(r.uniform(offsetx, img.cols - offsetx), r.uniform(offsety + lineLength, img.rows - offsety));
+            width = r.uniform(1, min(offsetx, offsety));
+            height = r.uniform(1, min(offsetx, offsety));
+            angle = r.uniform(0, 180);
+            ellipse(img, center,Size(width/2,height/2),angle,0,360, Scalar(i), -1);
+            break;
+        }
+    }
+    return img;
+}
+
+int main(int argc, char** argv)
+{
+    cout << "This program demonstrates the use of applyColorMap function.\n\n";
+
+    ParamColorMap  p;
+    Mat img;
+
+    if (argc > 1)
+        img = imread(samples::findFile(argv[1]), IMREAD_GRAYSCALE);
+    else
+        img = DrawMyImage(2,256);
+
+    p.img=img;
+    p.iColormap=0;
+
+    imshow("Gray image",img);
+    namedWindow(winName);
+    createTrackbar("colormap", winName,&p.iColormap,1,TrackColorMap,(void*)&p);
+    setTrackbarMin("colormap", winName, COLORMAP_AUTUMN);
+    setTrackbarMax("colormap", winName, COLORMAP_TURBO+1);
+    setTrackbarPos("colormap", winName, -1);
+
+    TrackColorMap(0, (void*)&p);
+
+    cout << "Press a key to exit" << endl;
+    waitKey(0);
+    return 0;
+}