int main(){
char str[20],pat[20];
printf("Enter the text string :");
scanf("%s",str);
printf("Enter the pattern to search :");
scanf("%s",pat);
int res=brute_force_match(str,pat);
(res==-1)?printf("Pattern not found\n"):printf("Pattern found at :%d\n",res);
return 0;
}
/*****************************************************************************
// Runs the matching
// This code opens a video camera and fetch the video stream
// and matches the video against the database
// @param video_device: the device number.
// @return - false when the camera cannot be opened.
*/
bool run_bf_matching(int video_device)
{
bool is_running = true;
// Open a capture device
cv::VideoCapture capture(video_device);
#ifdef WIN32
Sleep(2000.0);
#else
sleep(2.0);
#endif
// Check whether the device is open.
if(!capture.isOpened())
return false;
cv::Size video_size;
double w = (double) capture.get(CV_CAP_PROP_FRAME_WIDTH);
double h = (double) capture.get(CV_CAP_PROP_FRAME_HEIGHT);
video_size.width = 800;
video_size.height = video_size.width / (w/h);
cv::Mat query_image;
// loop until the variable is_running is false;
while (is_running)
{
// Fetch the input image
capture >> query_image;
// convert it into a greyscale image and resize the image
cvtColor( query_image , query_image , CV_BGR2GRAY);
cv::resize(query_image, query_image, video_size );
std::vector< cv::DMatch > matches;
// Match it against the database.
int img_idx = brute_force_match(query_image, &matches);
// wait for the key q
int ret = cv::waitKey(1);
if(ret == 113)is_running=false;
}
// release the camera
capture.release();
// release the image
query_image.release();
}
/*****************************************************************************
// Runs the brute force matching
// This code reads all files from the set directory path as query images
// and matches them against the reference images
// @param directory_path: the path of all input images for query, e.g., C:/my_database
// @param files: a std::vector object with a list of filenames.
*/
void run_bf_matching(std::string directory_path, std::vector<std::string> files)
{
// loop through all images in the query folder
for (int i = 0; i<files.size(); i++)
{
// Fetch the ref. image name from the input array\
// and assemble a path.
std::string query_image_str = directory_path;
query_image_str.append("/");
query_image_str.append( files[i]);
#ifdef DEBUG_OUT
std::cout << "*****\nTesting image " << files[i] << std::endl;
#endif
// Check whether the file exists.
bool ret = exists_test(query_image_str);
if (ret == false) continue;
// Load the image and convert it into a greyscale image
cv::Mat query_image = cv::imread(query_image_str);
cvtColor( query_image , query_image , CV_BGR2GRAY);
std::vector< cv::DMatch > matches;
// Match it against the database.
int img_idx = brute_force_match(query_image, &matches);
// release the image
query_image.release();
}
}
