111 lines
2.1 KiB
C++
111 lines
2.1 KiB
C++
#include <iostream>
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#include "opencv2/opencv.hpp"
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using namespace std;
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using namespace cv;
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int brightness1();
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int brightness2();
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int brightness3();
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int brightness4();
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int mosaic();
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int main() {
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return brightness4();
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}
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int brightness1() {
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Mat src = imread("..\\..\\resources\\images\\lenna.bmp", IMREAD_GRAYSCALE);
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if (src.empty()) {
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cerr << "imread()" << endl;
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return 1;
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}
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Mat dst = src + 100;
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imshow("src", src);
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imshow("dst", dst);
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waitKey();
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destroyAllWindows();
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return 0;
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}
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int brightness2() {
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Mat src = imread("..\\..\\resources\\images\\lenna.bmp", IMREAD_GRAYSCALE);
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if (src.empty()) {
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cerr << "imread()" << endl;
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return 1;
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}
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Mat dst(src.rows, src.cols, src.type());
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for (int j = 0; j < src.rows; j++) {
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for (int i = 0; i < src.cols; i++) {
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dst.at<uchar>(j, i) = src.at<uchar>(j, i) + 100;
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}
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}
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imshow("src", src);
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imshow("dst", dst);
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waitKey();
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destroyAllWindows();
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return 0;
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}
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int brightness3() {
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Mat src = imread("..\\..\\resources\\images\\lenna.bmp", IMREAD_GRAYSCALE);
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if (src.empty()) {
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cerr << "imread()" << endl;
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return 1;
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}
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Mat dst(src.rows, src.cols, src.type());
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for (int j = 0; j < src.rows; j++) {
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for (int i = 0; i < src.cols; i++) {
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dst.at<uchar>(j, i) = saturate_cast<uchar>(src.at<uchar>(j, i) + 100);
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}
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}
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imshow("src", src);
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imshow("dst", dst);
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waitKey();
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destroyAllWindows();
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return 0;
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}
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void on_brightness(int pos, void* userdata) {
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Mat src = *(Mat*)userdata;
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Mat dst = src + pos;
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imshow("dst", dst);
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}
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int brightness4() {
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Mat src = imread("..\\..\\resources\\images\\lenna.bmp", IMREAD_GRAYSCALE);
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if (src.empty()) {
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cerr << "imread()" << endl;
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return 1;
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}
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namedWindow("dst");
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createTrackbar("Brightness", "dst", 0, 100, on_brightness, (void*)&src);
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waitKey();
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destroyAllWindows();
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return 0;
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}
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int mosaic() {
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Mat src = imread("..\\..\\resources\\images\\lenna.bmp", IMREAD_COLOR_RGB);
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if (src.empty()) {
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cerr << "imread()" << endl;
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return 1;
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}
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const
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Mat dst(src.rows, src.cols, src.type());
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for (int j = 0; j < src.rows; j++) {
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for (int i = 0; i < src.cols; i++) {
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dst.at<uchar>(j, i) = src.at<uchar>(j, i) + 100;
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}
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}
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} |