本文实例为大家分享了OpenCV实现图像转换为漫画的具体代码，供大家参考，具体内容如下
From 《OpenCV By Example》
1、先canny提取图像的边缘并强化，翻转边缘为黑色，将像素值转换为0-1的值
2、将图像进行双边滤波处理，然后将像素值缩短为每10个灰度级为一个值
3、将前两步得到的结果相乘，显示结果
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#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, 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, 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;} |
原图为：
效果图为：
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/u014657795/article/details/78913939
