本文例項為大家分享了OpenCV實現影象轉換為漫畫的具體程式碼，供大家參考，具體內容如下

From 《OpenCV By Example》

1、先canny提取影象的邊緣並強化，翻轉邊緣為黑色，將畫素值轉換為0-1的值
2、將影象進行雙邊濾波處理，然後將畫素值縮短為每10個灰度級為一個值
3、將前兩步得到的結果相乘，顯示結果

#include <iostream>
 
using namespace std;
 
#include "opencv2/core.hpp"
#include "opencv2/highgui.hpp"
#include "opencv2/imgproc.hpp"
 
using namespace cv;
 
int main()
{
 Mat img = imread("1.jpg");
 float radius = img.cols > img.rows ? (img.rows / 3) : (img.cols / 3);
 
 
 const double exponential_e = exp(1.0);
 /** EDgES **/
 // Apply median filter to remove possible noise
 Mat imgMedian;
 medianBlur(img,imgMedian,7);
 // Detect edges with canny
 Mat imgCanny;
 Canny(imgMedian,imgCanny,50,150);
 // Dilate the edges
 Mat kernel = getStructuringElement(MORPH_RECT,Size(2,2));
 dilate(imgCanny,kernel);
 
 // Scale edges values to 1 and invert values
 imgCanny = imgCanny / 255;
 imgCanny = 1 - imgCanny;
 // Use float values to allow multiply between 0 and 1
 Mat imgCannyf;
 imgCanny.convertTo(imgCannyf,CV_32FC3);
 // Blur the edgest to do smooth effect
 blur(imgCannyf,imgCannyf,Size(5,5));
 
 /** COLOR **/
 // Apply bilateral filter to homogenizes color
 Mat imgBF;
 bilateralFilter(img,imgBF,9,150.0,150.0);
 // truncate colors
 Mat result = imgBF / 25;
 result = result * 25;
 /** MERgES COLOR + EDgES **/
 // Create a 3 channles for edges
 Mat imgCanny3c;
 Mat cannyChannels[] = { imgCannyf,imgCannyf };
 merge(cannyChannels,3,imgCanny3c);
 // Convert color result to float
 Mat resultf;
 result.convertTo(resultf,CV_32FC3);
 // Multiply color and edges matrices
// cout << imgCanny3c << endl;
 multiply(resultf,imgCanny3c,resultf);
// cout << resultf << endl;
 // convert to 8 bits color
 resultf.convertTo(result,CV_8UC3);
 // Show image
 imshow("Result",result);
 
 waitKey(0);
 
 return 0;
}

原圖為：

效果圖為：

以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支援我們。