水漫填充

水漫填充：floodFill()函数

int floodFill( InputOutputArray image, InputOutputArray mask,
                            Point seedPoint, Scalar newVal, CV_OUT Rect* rect=0,
                            Scalar loDiff = Scalar(), Scalar upDiff = Scalar(),
                            int flags = 4 );

int floodFill( InputOutputArray image,
                          Point seedPoint, Scalar newVal, CV_OUT Rect* rect = 0,
                          Scalar loDiff = Scalar(), Scalar upDiff = Scalar(),
                          int flags = 4 );

#include<opencv2/opencv.hpp>
#include<iostream>

using namespace cv;
using namespace std;

int main(int argc, char** argv) {
    Mat img = imread("C:\\Users\\Nelsoner\\Desktop\\Camera Roll\\05.jpg", 1);
    Rect ccomp;
    imshow("【原图】", img);
    floodFill(img, Point(50, 300), Scalar(155, 255, 55), &ccomp, Scalar(20, 20, 20), Scalar(20, 20, 20));
    imshow("【效果图】", img);

    waitKey(0);

    return 0;
}