82 lines
1.6 KiB
C++
82 lines
1.6 KiB
C++
#include <iostream>
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#include <opencv2/opencv.hpp>
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#include <sys/stat.h>
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#include <string>
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#include <vector>
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#include <algorithm>
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using namespace std;
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using namespace cv;
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std::vector<std::string> supportedExt = {
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"jpg", "JPG",
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"jpeg", "JPEG",
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"png", "PNG",
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"tif", "TIF",
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"tiff", "tiff"
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};
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inline bool in_array(const std::string &value, const std::vector<std::string> &array)
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{
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return std::find(array.begin(), array.end(), value) != array.end();
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}
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inline bool file_exists (const std::string& name)
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{
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struct stat buffer;
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return (stat (name.c_str(), &buffer) == 0);
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}
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inline bool is_image (const std::string& name)
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{
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string ext = name.substr(name.find_last_of(".") + 1);
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return in_array(ext, supportedExt);
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}
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int main(int argc, char** argv)
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{
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Mat image;
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Mat inverted;
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string input;
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if (argc == 2)
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{
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input = argv[1];
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}
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else if (argc < 2)
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{
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cerr << "Please provide one image." << endl;
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return -1;
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}
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else if (argc > 2)
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{
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cerr << "Please provide only one image." << endl;
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return -2;
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}
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if (!file_exists(input))
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{
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cerr << "File " << input << " does not exist." << endl;
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return -3;
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}
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if (!is_image(input))
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{
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cerr << "File " << input << " is not a valid image." << endl;
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return -4;
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}
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cout << "Using image " << input << "." << endl;
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image = imread(input);
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bitwise_not(image, inverted);
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imshow("Image", inverted);
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waitKey(0);
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destroyAllWindows();
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return 0;
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} |