generic-library/opencv
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This commit is contained in:
Gary Bradski
2010-12-03 10:21:55 +00:00
parent e73245ef9f
commit 37ae2634aa
1 changed files with 8 additions and 3 deletions
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11
samples/cpp/demhist.cpp
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@@ -54,7 +54,12 @@ void updateBrightnessContrast( int arg, void* )
Scalar::all(0), -1, 8, 0 ); Scalar::all(0), -1, 8, 0 );
imshow("histogram", histImage); imshow("histogram", histImage);
} }
void help()
{
cout << "\nThis program demonstrates the use of calcHist -- histogram creation.\n"
"Call:\n"
"demhist [image_name -- Defaults to baboon.jpg]\n" << endl;
}
int main( int argc, char** argv ) int main( int argc, char** argv )
{ {
@@ -63,10 +68,10 @@ int main( int argc, char** argv )
if( image.empty() ) if( image.empty() )
{ {
cout << "Image was not loaded.\n"; help();
return -1; return -1;
} }
help();
namedWindow("image", 0); namedWindow("image", 0);
namedWindow("histogram", 0); namedWindow("histogram", 0);