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Set stricter warning rules for gcc

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This commit is contained in:
Andrey Kamaev
2012-06-07 17:21:29 +00:00
parent 0395f7c63f
commit 49a1ba6038
241 changed files with 9054 additions and 8947 deletions
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50
samples/cpp/connected_components.cpp
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@@ -8,16 +8,16 @@ using namespace std;
Mat img;
int threshval = 100;
void on_trackbar(int, void*)
static void on_trackbar(int, void*)
{
Mat bw = threshval < 128 ? (img < threshval) : (img > threshval);
Mat bw = threshval < 128 ? (img < threshval) : (img > threshval);
vector<vector<Point> > contours;
vector<Vec4i> hierarchy;
findContours( bw, contours, hierarchy, CV_RETR_CCOMP, CV_CHAIN_APPROX_SIMPLE );
Mat dst = Mat::zeros(img.size(), CV_8UC3);
Mat dst = Mat::zeros(img.size(), CV_8UC3);
if( !contours.empty() && !hierarchy.empty() )
{
@@ -31,42 +31,42 @@ void on_trackbar(int, void*)
}
}
imshow( "Connected Components", dst );
imshow( "Connected Components", dst );
}
void help()
static void help()
{
cout << "\n This program demonstrates connected components and use of the trackbar\n"
"Usage: \n"
" ./connected_components <image(stuff.jpg as default)>\n"
"The image is converted to grayscale and displayed, another image has a trackbar\n"
"Usage: \n"
" ./connected_components <image(stuff.jpg as default)>\n"
"The image is converted to grayscale and displayed, another image has a trackbar\n"
"that controls thresholding and thereby the extracted contours which are drawn in color\n";
}
const char* keys =
const char* keys =
{
"{1| |stuff.jpg|image for converting to a grayscale}"
"{1| |stuff.jpg|image for converting to a grayscale}"
};
int main( int argc, const char** argv )
{
help();
CommandLineParser parser(argc, argv, keys);
string inputImage = parser.get<string>("1");
img = imread(inputImage.c_str(), 0);
help();
CommandLineParser parser(argc, argv, keys);
string inputImage = parser.get<string>("1");
img = imread(inputImage.c_str(), 0);
if(img.empty())
{
if(img.empty())
{
cout << "Could not read input image file: " << inputImage << endl;
return -1;
}
return -1;
}
namedWindow( "Image", 1 );
namedWindow( "Image", 1 );
imshow( "Image", img );
namedWindow( "Connected Components", 1 );
createTrackbar( "Threshold", "Connected Components", &threshval, 255, on_trackbar );
on_trackbar(threshval, 0);
namedWindow( "Connected Components", 1 );
createTrackbar( "Threshold", "Connected Components", &threshval, 255, on_trackbar );
on_trackbar(threshval, 0);
waitKey(0);
return 0;