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#include <opencv2/opencv.hpp>
#include <iostream>
using namespace cv;
int main() {
Mat srcImage, dstImage;
Mat map_x, map_y;
srcImage = imread("1.jpg");
if (!srcImage.data) {
printf("读取图片错误\n");
return false;
}
imshow("原始图", srcImage);
dstImage.create(srcImage.size(), srcImage.type());
map_x.create(srcImage.size(), CV_32FC1);
map_y.create(srcImage.size(), CV_32FC1);
for (int j = 0; j < srcImage.rows; j++) {
for (int i = 0; i < srcImage.cols; i++) {
//改变map_x、map_y的值
map_x.at<float>(j, i) = static_cast<float>(srcImage.cols - i);
map_y.at<float>(j, i) = static_cast<float>(j);
}
}
//重映射
remap(srcImage, dstImage, map_x, map_y, INTER_LINEAR, BORDER_CONSTANT, Scalar(0, 0, 0));
//显示效果图
imshow("效果图", dstImage);
waitKey(0);
return 0;
}
效果图: