我一直在做皮肤检测,但无法得到平滑的结果。下面的图像包含了输入(左侧)和使用下面附加的代码生成的输出(右侧)。现在,期望的输出应该是最下面的图像(边缘平滑且没有孔洞)。如何实现这个输出?提供一个开始的示例代码将会非常有帮助。
输入(左侧)和错误的输出(右侧):
期望的输出:
生成错误输出的代码:
输入(左侧)和错误的输出(右侧):
![enter image description here](https://istack.dev59.com/aPqCk.webp)
![enter image description here](https://istack.dev59.com/VVb4K.webp)
#include <opencv2/imgproc/imgproc.hpp>
#include <opencv2/highgui/highgui.hpp>
using namespace cv;
int main(){
Mat src = imread("qq.jpg");
if (src.empty())
return -1;
blur( src, src, Size(3,3) );
Mat hsv;
cvtColor(src, hsv, CV_BGR2HSV);
Mat bw;
inRange(hsv, Scalar(0, 10, 60), Scalar(20, 150, 255), bw);
imshow("src", src);
imshow("dst", bw);
waitKey(0);
return 0;
}
修改后的代码(基于Astor的建议): (现在的问题是:如何使输出更加平滑?)
#include <opencv2/imgproc/imgproc.hpp>
#include <opencv2/highgui/highgui.hpp>
using namespace cv;
int findBiggestContour(vector<vector<Point> >);
int main(){
Mat src = imread("qq.jpg");
if (src.empty())
return -1;
blur( src, src, Size(3,3) );
Mat hsv;
cvtColor(src, hsv, CV_BGR2HSV);
Mat bw;
inRange(hsv, Scalar(0, 10, 60), Scalar(20, 150, 255), bw);
imshow("src", src);
imshow("dst", bw);
Mat canny_output;
vector<vector<Point> > contours;
vector<Vec4i> hierarchy;
findContours( bw, contours, hierarchy, CV_RETR_TREE, CV_CHAIN_APPROX_SIMPLE, Point(0, 0) );
int s = findBiggestContour(contours);
Mat drawing = Mat::zeros( src.size(), CV_8UC1 );
drawContours( drawing, contours, s, Scalar(255), -1, 8, hierarchy, 0, Point() );
imshow("drw", drawing);
waitKey(0);
return 0;
}
int findBiggestContour(vector<vector<Point> > contours){
int indexOfBiggestContour = -1;
int sizeOfBiggestContour = 0;
for (int i = 0; i < contours.size(); i++){
if(contours[i].size() > sizeOfBiggestContour){
sizeOfBiggestContour = contours[i].size();
indexOfBiggestContour = i;
}
}
return indexOfBiggestContour;
}