OpenCV_8素描

一，原图：

二，代码：

//8素描
void Sketch()
{
	Mat src = imread("D:\\test\\26.png", 1);
	int width = src.cols;
	int heigh = src.rows;
	Mat gray0, gray1;
	//去色
	cvtColor(src, gray0, CV_BGR2GRAY);
	//反色
	addWeighted(gray0, -1, NULL, 0, 255, gray1);
	//高斯模糊,高斯核的Size与最后的效果有关
	GaussianBlur(gray1, gray1, Size(11, 11), 0);

	//融合：颜色减淡
	Mat img(gray1.size(), CV_8UC1);
	for (int y = 0; y<heigh; y++)
	{

		uchar* P0 = gray0.ptr<uchar>(y);
		uchar* P1 = gray1.ptr<uchar>(y);
		uchar* P = img.ptr<uchar>(y);
		for (int x = 0; x<width; x++)
		{
			int tmp0 = P0[x];
			int tmp1 = P1[x];
			P[x] = (uchar)min((tmp0 + (tmp0*tmp1) / (256 - tmp1)), 255);
		}

	}
	imshow("素描", img);
	waitKey();
	imwrite("D:/素描.jpg", img);
}

//-----开始------
void COpenCVLearningDlg::OnBnClickedStartButton()
{
	Sketch();
}

三，结果：

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原文地址：https://blog.csdn.net/sangni007/column/info/stylizefliter