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大家好,請幫助我。我有個問題。 我從圖像中檢測凸面船體。在ConvexHull OpenCV上填充顏色
然後,我有一個問題來填充ConvexHull邊界內的區域的顏色。
有沒有人可以幫助我在ConvexHull的邊界內填充顏色?
請幫我實施源代碼。
我使用OpenCV 2.3。
這是一個源代碼:
#include "stdafx.h"
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/imgproc/imgproc.hpp"
#include <iostream>
#include <stdio.h>
#include <stdlib.h>
using namespace cv;
using namespace std;
Mat src; Mat src_gray;
int thresh = 240;
int max_thresh = 255;
RNG rng(12345);
/// Function header
void thresh_callback(int, void*);
/** @function main */
int main(int argc, char** argv)
{
/// Load source image and convert it to gray
src = imread("kubis1.jpg", 1);
/// Convert image to gray and blur it
cvtColor(src, src_gray, CV_BGR2GRAY);
blur(src_gray, src_gray, Size(3,3));
/// Create Window
char* source_window = "Source";
namedWindow(source_window, CV_WINDOW_AUTOSIZE);
imshow(source_window, src);
createTrackbar(" Threshold:", "Source", &thresh, max_thresh, thresh_callback);
thresh_callback(0, 0);
waitKey(0);
return(0);
}
/** @function thresh_callback */
void thresh_callback(int, void*)
{
Mat src_copy = src.clone();
Mat threshold_output;
vector<vector<Point> > contours;
vector<Vec4i> hierarchy;
/// Detect edges using Threshold
threshold(src_gray, threshold_output, thresh, 255, THRESH_BINARY);
/// Find contours
findContours(threshold_output, contours, hierarchy, CV_RETR_TREE, CV_CHAIN_APPROX_SIMPLE, Point(0, 0));
/// Find the convex hull object for each contour
vector<vector<Point> >hull(contours.size());
for(int i = 0; i < contours.size(); i++)
{ convexHull(Mat(contours[i]), hull[i], false);
}
/// Draw contours + hull results
Mat drawing = Mat::zeros(threshold_output.size(), CV_8UC3);
for(int i = 0; i< contours.size(); i++)
{
Scalar color = Scalar(rng.uniform(0, 255), rng.uniform(0,255), rng.uniform(0,255));
drawContours(drawing, contours, i, color, 1, 8, vector<Vec4i>(), 0, Point());
drawContours(drawing, hull, i, color, 1, 8, vector<Vec4i>(), 0, Point());
}
/// Show in a window
namedWindow("Hull demo", CV_WINDOW_AUTOSIZE);
imshow("Hull demo", drawing);
}
任何人都可以幫助我嗎? – Jenang 2013-03-19 10:16:22
你的問題是什麼? – ArtemStorozhuk 2013-03-19 10:33:18
我的問題:幫助我填充ConvexHull邊界內的區域的顏色。 – Jenang 2013-03-20 03:57:58