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Update Samples

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This commit is contained in:
Suleyman TURKMEN
2019-07-28 12:09:17 +03:00
committed by sturkmen72
parent 9ef5373776
commit f73395122c
72 changed files with 251 additions and 271 deletions
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11
samples/cpp/dft.cpp
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@@ -9,12 +9,11 @@
using namespace cv;
using namespace std;
static void help()
static void help(const char ** argv)
{
printf("\nThis program demonstrated the use of the discrete Fourier transform (dft)\n"
"The dft of an image is taken and it's power spectrum is displayed.\n"
"Usage:\n"
"./dft [image_name -- default lena.jpg]\n");
"Usage:\n %s [image_name -- default lena.jpg]\n",argv[0]);
}
const char* keys =
@@ -24,18 +23,18 @@ const char* keys =
int main(int argc, const char ** argv)
{
help();
help(argv);
CommandLineParser parser(argc, argv, keys);
if (parser.has("help"))
{
help();
help(argv);
return 0;
}
string filename = parser.get<string>(0);
Mat img = imread(samples::findFile(filename), IMREAD_GRAYSCALE);
if( img.empty() )
{
help();
help(argv);
printf("Cannot read image file: %s\n", filename.c_str());
return -1;
}