#include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <iostream>
using namespace cv;
int main(int argc, char *argv[])
{
Mat image = imread("Test.jpg", 1);
if (image.empty())
{
std::cout << "打开图片失败,请检查" << std::endl;
return -1;
}
imshow("原图像", image);
Mat imageRGB[3];
split(image, imageRGB);
for (int i = 0; i < 3; i++)
{
equalizeHist(imageRGB[i], imageRGB[i]);
}
merge(imageRGB, 3, image);
imshow("直方图均衡化图像增强效果", image);
waitKey();
return 0;
}
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <iostream>
using namespace cv;
int main(int argc, char *argv[])
{
Mat image = imread("Test.jpg", 1);
if (image.empty())
{
std::cout << "打开图片失败,请检查" << std::endl;
return -1;
}
imshow("原图像", image);
Mat imageEnhance;
Mat kernel = (Mat_<float>(3, 3) << 0, -1, 0, -1, 5, -1, 0, -1, 0);
filter2D(image, imageEnhance, CV_8UC3, kernel);
imshow("拉普拉斯算子图像增强效果", imageEnhance);
waitKey();
return 0;
}
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc/imgproc.hpp>
using namespace cv;
int main(int argc, char *argv[])
{
Mat image = imread("Test.jpg");
Mat imageLog(image.size(), CV_32FC3);
for (int i = 0; i < image.rows; i++)
{
for (int j = 0; j < image.cols; j++)
{
imageLog.at<Vec3f>(i, j)[0] = log(1 + image.at<Vec3b>(i, j)[0]);
imageLog.at<Vec3f>(i, j)[1] = log(1 + image.at<Vec3b>(i, j)[1]);
imageLog.at<Vec3f>(i, j)[2] = log(1 + image.at<Vec3b>(i, j)[2]);
}
}
//归一化到0~255
normalize(imageLog, imageLog, 0, 255, CV_MINMAX);
//转换成8bit图像显示
convertScaleAbs(imageLog, imageLog);
imshow("Soure", image);
imshow("after", imageLog);
waitKey();
return 0;
}
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc/imgproc.hpp>
using namespace cv;
int main(int argc, char *argv[])
{
Mat image = imread("Test.jpg");
Mat imageGamma(image.size(), CV_32FC3);
for (int i = 0; i < image.rows; i++)
{
for (int j = 0; j < image.cols; j++)
{
imageGamma.at<Vec3f>(i, j)[0] = (image.at<Vec3b>(i, j)[0])*(image.at<Vec3b>(i, j)[0])*(image.at<Vec3b>(i, j)[0]);
imageGamma.at<Vec3f>(i, j)[1] = (image.at<Vec3b>(i, j)[1])*(image.at<Vec3b>(i, j)[1])*(image.at<Vec3b>(i, j)[1]);
imageGamma.at<Vec3f>(i, j)[2] = (image.at<Vec3b>(i, j)[2])*(image.at<Vec3b>(i, j)[2])*(image.at<Vec3b>(i, j)[2]);
}
}
//归一化到0~255
normalize(imageGamma, imageGamma, 0, 255, CV_MINMAX);
//转换成8bit图像显示
convertScaleAbs(imageGamma, imageGamma);
imshow("原图", image);
imshow("伽马变换图像增强效果", imageGamma);
waitKey();
return 0;
}