minor fix

modules/contrib/src/inputoutput.cpp

@@ -46,7 +46,7 @@ namespace cv
 		#else
 			DIR *dp;
 			struct dirent *dirp;
-			if((dp = opendir(path_f.c_str())) == NULL) 
+			if((dp = opendir(path.c_str())) == NULL) 
 			{
 				return list;
 			}
@@ -54,8 +54,14 @@ namespace cv
 			while ((dirp = readdir(dp)) != NULL) 
 			{
 				if (dirp->d_type == DT_REG)
+				{
+					if (exten.compare("*") == 0)
+						list.push_back(static_cast<std::string>(dirp->d_name));
+					else
+						if (std::string(dirp->d_name).find(exten) != std::string::npos)
 							list.push_back(static_cast<std::string>(dirp->d_name));
 				}
+			}
 			closedir(dp);
 		#endif
 
@@ -108,6 +114,10 @@ namespace cv
 					strcmp(dirp->d_name, ".") != 0 && 
 					strcmp(dirp->d_name, "..") != 0 )
 				{
+					if (exten.compare("*") == 0)
+						list.push_back(static_cast<std::string>(dirp->d_name));
+					else
+						if (std::string(dirp->d_name).find(exten) != std::string::npos)
 							list.push_back(static_cast<std::string>(dirp->d_name));
 				}
 			}