1 #ifndef OPENCV_TS_PERF_HPP
2 #define OPENCV_TS_PERF_HPP
4 #include "opencv2/core.hpp"
10 #if !(defined(LOGD) || defined(LOGI) || defined(LOGW) || defined(LOGE))
11 # if defined(ANDROID) && defined(USE_ANDROID_LOGGING)
12 # include <android/log.h>
14 # define PERF_TESTS_LOG_TAG "OpenCV_perf"
15 # define LOGD(...) ((void)__android_log_print(ANDROID_LOG_DEBUG, PERF_TESTS_LOG_TAG, __VA_ARGS__))
16 # define LOGI(...) ((void)__android_log_print(ANDROID_LOG_INFO, PERF_TESTS_LOG_TAG, __VA_ARGS__))
17 # define LOGW(...) ((void)__android_log_print(ANDROID_LOG_WARN, PERF_TESTS_LOG_TAG, __VA_ARGS__))
18 # define LOGE(...) ((void)__android_log_print(ANDROID_LOG_ERROR, PERF_TESTS_LOG_TAG, __VA_ARGS__))
20 # define LOGD(_str, ...) do{printf(_str , ## __VA_ARGS__); printf("\n");fflush(stdout);} while(0)
21 # define LOGI(_str, ...) do{printf(_str , ## __VA_ARGS__); printf("\n");fflush(stdout);} while(0)
22 # define LOGW(_str, ...) do{printf(_str , ## __VA_ARGS__); printf("\n");fflush(stdout);} while(0)
23 # define LOGE(_str, ...) do{printf(_str , ## __VA_ARGS__); printf("\n");fflush(stdout);} while(0)
27 // declare major namespaces to avoid errors on unknown namespace
28 namespace cv { namespace cuda {} namespace ocl {} }
34 /*****************************************************************************************\
35 * Predefined typical frame sizes and typical test parameters *
36 \*****************************************************************************************/
37 const cv::Size szQVGA = cv::Size(320, 240);
38 const cv::Size szVGA = cv::Size(640, 480);
39 const cv::Size szSVGA = cv::Size(800, 600);
40 const cv::Size szXGA = cv::Size(1024, 768);
41 const cv::Size szSXGA = cv::Size(1280, 1024);
42 const cv::Size szWQHD = cv::Size(2560, 1440);
44 const cv::Size sznHD = cv::Size(640, 360);
45 const cv::Size szqHD = cv::Size(960, 540);
46 const cv::Size sz240p = szQVGA;
47 const cv::Size sz720p = cv::Size(1280, 720);
48 const cv::Size sz1080p = cv::Size(1920, 1080);
49 const cv::Size sz1440p = szWQHD;
50 const cv::Size sz2160p = cv::Size(3840, 2160);//UHDTV1 4K
51 const cv::Size sz4320p = cv::Size(7680, 4320);//UHDTV2 8K
53 const cv::Size sz3MP = cv::Size(2048, 1536);
54 const cv::Size sz5MP = cv::Size(2592, 1944);
55 const cv::Size sz2K = cv::Size(2048, 2048);
57 const cv::Size szODD = cv::Size(127, 61);
59 const cv::Size szSmall24 = cv::Size(24, 24);
60 const cv::Size szSmall32 = cv::Size(32, 32);
61 const cv::Size szSmall64 = cv::Size(64, 64);
62 const cv::Size szSmall128 = cv::Size(128, 128);
64 #define SZ_ALL_VGA ::testing::Values(::perf::szQVGA, ::perf::szVGA, ::perf::szSVGA)
65 #define SZ_ALL_GA ::testing::Values(::perf::szQVGA, ::perf::szVGA, ::perf::szSVGA, ::perf::szXGA, ::perf::szSXGA)
66 #define SZ_ALL_HD ::testing::Values(::perf::sznHD, ::perf::szqHD, ::perf::sz720p, ::perf::sz1080p)
67 #define SZ_ALL_SMALL ::testing::Values(::perf::szSmall24, ::perf::szSmall32, ::perf::szSmall64, ::perf::szSmall128)
68 #define SZ_ALL ::testing::Values(::perf::szQVGA, ::perf::szVGA, ::perf::szSVGA, ::perf::szXGA, ::perf::szSXGA, ::perf::sznHD, ::perf::szqHD, ::perf::sz720p, ::perf::sz1080p)
69 #define SZ_TYPICAL ::testing::Values(::perf::szVGA, ::perf::szqHD, ::perf::sz720p, ::perf::szODD)
72 #define TYPICAL_MAT_SIZES ::perf::szVGA, ::perf::sz720p, ::perf::sz1080p, ::perf::szODD
73 #define TYPICAL_MAT_TYPES CV_8UC1, CV_8UC4, CV_32FC1
74 #define TYPICAL_MATS testing::Combine( testing::Values( TYPICAL_MAT_SIZES ), testing::Values( TYPICAL_MAT_TYPES ) )
75 #define TYPICAL_MATS_C1 testing::Combine( testing::Values( TYPICAL_MAT_SIZES ), testing::Values( CV_8UC1, CV_32FC1 ) )
76 #define TYPICAL_MATS_C4 testing::Combine( testing::Values( TYPICAL_MAT_SIZES ), testing::Values( CV_8UC4 ) )
79 /*****************************************************************************************\
80 * MatType - printable wrapper over integer 'type' of Mat *
81 \*****************************************************************************************/
85 MatType(int val=0) : _type(val) {}
86 operator int() const {return _type;}
92 /*****************************************************************************************\
93 * CV_ENUM and CV_FLAGS - macro to create printable wrappers for defines and enums *
94 \*****************************************************************************************/
96 #define CV_ENUM(class_name, ...) \
98 using namespace cv;using namespace cv::cuda; using namespace cv::ocl; \
100 class_name(int val = 0) : val_(val) {} \
101 operator int() const { return val_; } \
102 void PrintTo(std::ostream* os) const { \
103 const int vals[] = { __VA_ARGS__ }; \
104 const char* svals = #__VA_ARGS__; \
105 for(int i = 0, pos = 0; i < (int)(sizeof(vals)/sizeof(int)); ++i) { \
106 while(isspace(svals[pos]) || svals[pos] == ',') ++pos; \
108 while(!(isspace(svals[pos]) || svals[pos] == ',' || svals[pos] == 0)) \
110 if (val_ == vals[i]) { \
111 *os << std::string(svals + start, svals + pos); \
117 static ::testing::internal::ParamGenerator<class_name> all() { \
118 const class_name vals[] = { __VA_ARGS__ }; \
119 return ::testing::ValuesIn(vals); \
123 static inline void PrintTo(const class_name& t, std::ostream* os) { t.PrintTo(os); } }
125 #define CV_FLAGS(class_name, ...) \
127 struct class_name { \
128 class_name(int val = 0) : val_(val) {} \
129 operator int() const { return val_; } \
130 void PrintTo(std::ostream* os) const { \
131 using namespace cv;using namespace cv::cuda; using namespace cv::ocl; \
132 const int vals[] = { __VA_ARGS__ }; \
133 const char* svals = #__VA_ARGS__; \
136 for(int i = 0, pos = 0; i < (int)(sizeof(vals)/sizeof(int)); ++i) { \
137 while(isspace(svals[pos]) || svals[pos] == ',') ++pos; \
139 while(!(isspace(svals[pos]) || svals[pos] == ',' || svals[pos] == 0)) \
141 if ((value & vals[i]) == vals[i]) { \
143 if (first) first = false; else *os << "|"; \
144 *os << std::string(svals + start, svals + pos); \
145 if (!value) return; \
148 if (first) *os << "UNKNOWN"; \
152 static inline void PrintTo(const class_name& t, std::ostream* os) { t.PrintTo(os); } }
154 CV_ENUM(MatDepth, CV_8U, CV_8S, CV_16U, CV_16S, CV_32S, CV_32F, CV_64F, CV_USRTYPE1)
156 /*****************************************************************************************\
157 * Regression control utility for performance testing *
158 \*****************************************************************************************/
165 class CV_EXPORTS Regression
168 static Regression& add(TestBase* test, const std::string& name, cv::InputArray array, double eps = DBL_EPSILON, ERROR_TYPE err = ERROR_ABSOLUTE);
169 static Regression& addMoments(TestBase* test, const std::string& name, const cv::Moments & array, double eps = DBL_EPSILON, ERROR_TYPE err = ERROR_ABSOLUTE);
170 static Regression& addKeypoints(TestBase* test, const std::string& name, const std::vector<cv::KeyPoint>& array, double eps = DBL_EPSILON, ERROR_TYPE err = ERROR_ABSOLUTE);
171 static Regression& addMatches(TestBase* test, const std::string& name, const std::vector<cv::DMatch>& array, double eps = DBL_EPSILON, ERROR_TYPE err = ERROR_ABSOLUTE);
172 static void Init(const std::string& testSuitName, const std::string& ext = ".xml");
174 Regression& operator() (const std::string& name, cv::InputArray array, double eps = DBL_EPSILON, ERROR_TYPE err = ERROR_ABSOLUTE);
177 static Regression& instance();
181 Regression(const Regression&);
182 Regression& operator=(const Regression&);
184 cv::RNG regRNG;//own random numbers generator to make collection and verification work identical
185 std::string storageInPath;
186 std::string storageOutPath;
187 cv::FileStorage storageIn;
188 cv::FileStorage storageOut;
190 std::string currentTestNodeName;
191 std::string suiteName;
193 cv::FileStorage& write();
195 static std::string getCurrentTestNodeName();
196 static bool isVector(cv::InputArray a);
197 static double getElem(cv::Mat& m, int x, int y, int cn = 0);
199 void init(const std::string& testSuitName, const std::string& ext);
200 void write(cv::InputArray array);
201 void write(cv::Mat m);
202 void verify(cv::FileNode node, cv::InputArray array, double eps, ERROR_TYPE err);
203 void verify(cv::FileNode node, cv::Mat actual, double eps, std::string argname, ERROR_TYPE err);
206 #define SANITY_CHECK(array, ...) ::perf::Regression::add(this, #array, array , ## __VA_ARGS__)
207 #define SANITY_CHECK_MOMENTS(array, ...) ::perf::Regression::addMoments(this, #array, array , ## __VA_ARGS__)
208 #define SANITY_CHECK_KEYPOINTS(array, ...) ::perf::Regression::addKeypoints(this, #array, array , ## __VA_ARGS__)
209 #define SANITY_CHECK_MATCHES(array, ...) ::perf::Regression::addMatches(this, #array, array , ## __VA_ARGS__)
210 #define SANITY_CHECK_NOTHING() this->setVerified()
212 class CV_EXPORTS GpuPerf
215 static bool targetDevice();
218 #define PERF_RUN_CUDA() ::perf::GpuPerf::targetDevice()
220 /*****************************************************************************************\
221 * Container for performance metrics *
222 \*****************************************************************************************/
223 typedef struct CV_EXPORTS performance_metrics
227 unsigned int samples;
228 unsigned int outliers;
230 double gstddev;//stddev for log(time)
236 int terminationReason;
244 TERM_SKIP_TEST = 4, // there are some limitations and test should be skipped
248 performance_metrics();
250 } performance_metrics;
253 /*****************************************************************************************\
254 * Strategy for performance measuring *
255 \*****************************************************************************************/
258 PERF_STRATEGY_DEFAULT = -1,
259 PERF_STRATEGY_BASE = 0,
260 PERF_STRATEGY_SIMPLE = 1
264 /*****************************************************************************************\
265 * Base fixture for performance tests *
266 \*****************************************************************************************/
267 #ifdef CV_COLLECT_IMPL_DATA
268 // Implementation collection processing class.
269 // Accumulates and shapes implementation data.
270 typedef struct ImplData
277 std::vector<int> implCode;
278 std::vector<cv::String> funName;
288 ipp = icv = ocl = ipp_mt = false;
295 flagsToVars(cv::getImpl(implCode, funName));
298 std::vector<cv::String> GetCallsForImpl(int impl)
300 std::vector<cv::String> out;
302 for(int i = 0; i < (int)implCode.size(); i++)
304 if(impl == implCode[i])
305 out.push_back(funName[i]);
310 // Remove duplicate entries
313 std::vector<int> savedCode;
314 std::vector<cv::String> savedName;
316 for(int i = 0; i < (int)implCode.size(); i++)
319 for(int j = 0; j < (int)savedCode.size(); j++)
321 if(implCode[i] == savedCode[j] && !funName[i].compare(savedName[j]))
329 savedCode.push_back(implCode[i]);
330 savedName.push_back(funName[i]);
334 implCode = savedCode;
338 // convert flags register to more handy variables
339 void flagsToVars(int flags)
341 #if defined(HAVE_IPP_ICV_ONLY)
343 icv = ((flags&CV_IMPL_IPP) > 0);
345 ipp = ((flags&CV_IMPL_IPP) > 0);
348 ipp_mt = ((flags&CV_IMPL_MT) > 0);
349 ocl = ((flags&CV_IMPL_OCL) > 0);
350 plain = (flags == 0);
356 #ifdef ENABLE_INSTRUMENTATION
360 static ::cv::String treeToString();
361 static void printTree();
365 class CV_EXPORTS TestBase: public ::testing::Test
370 static void Init(int argc, const char* const argv[]);
371 static void Init(const std::vector<std::string> & availableImpls,
372 int argc, const char* const argv[]);
373 static void RecordRunParameters();
374 static std::string getDataPath(const std::string& relativePath);
375 static std::string getSelectedImpl();
377 static enum PERF_STRATEGY getCurrentModulePerformanceStrategy();
378 static enum PERF_STRATEGY setModulePerformanceStrategy(enum PERF_STRATEGY strategy);
380 class PerfSkipTestException: public cv::Exception
383 int dummy; // workaround for MacOSX Xcode 7.3 bug (don't make class "empty")
384 PerfSkipTestException() : dummy(0) {}
388 virtual void PerfTestBody() = 0;
390 virtual void SetUp();
391 virtual void TearDown();
393 bool startTimer(); // bool is dummy for conditional loop
397 PERF_STRATEGY getCurrentPerformanceStrategy() const;
407 void reportMetrics(bool toJUnitXML = false);
408 static void warmup(cv::InputOutputArray a, WarmUpType wtype = WARMUP_READ);
410 performance_metrics& calcMetrics();
412 void RunPerfTestBody();
414 #ifdef CV_COLLECT_IMPL_DATA
417 #ifdef ENABLE_INSTRUMENTATION
418 InstumentData instrConf;
422 typedef std::vector<std::pair<int, cv::Size> > SizeVector;
423 typedef std::vector<int64> TimeVector;
425 SizeVector inputData;
426 SizeVector outputData;
427 unsigned int getTotalInputSize() const;
428 unsigned int getTotalOutputSize() const;
430 enum PERF_STRATEGY testStrategy;
436 static int64 timeLimitDefault;
437 static unsigned int iterationsLimitDefault;
439 unsigned int minIters;
441 unsigned int currentIter;
442 unsigned int runsPerIteration;
443 unsigned int perfValidationStage;
445 performance_metrics metrics;
446 void validateMetrics();
448 static int64 _timeadjustment;
449 static int64 _calibrate();
451 static void warmup_impl(cv::Mat m, WarmUpType wtype);
452 static int getSizeInBytes(cv::InputArray a);
453 static cv::Size getSize(cv::InputArray a);
454 static void declareArray(SizeVector& sizes, cv::InputOutputArray a, WarmUpType wtype);
456 class CV_EXPORTS _declareHelper
459 _declareHelper& in(cv::InputOutputArray a1, WarmUpType wtype = WARMUP_READ);
460 _declareHelper& in(cv::InputOutputArray a1, cv::InputOutputArray a2, WarmUpType wtype = WARMUP_READ);
461 _declareHelper& in(cv::InputOutputArray a1, cv::InputOutputArray a2, cv::InputOutputArray a3, WarmUpType wtype = WARMUP_READ);
462 _declareHelper& in(cv::InputOutputArray a1, cv::InputOutputArray a2, cv::InputOutputArray a3, cv::InputOutputArray a4, WarmUpType wtype = WARMUP_READ);
464 _declareHelper& out(cv::InputOutputArray a1, WarmUpType wtype = WARMUP_WRITE);
465 _declareHelper& out(cv::InputOutputArray a1, cv::InputOutputArray a2, WarmUpType wtype = WARMUP_WRITE);
466 _declareHelper& out(cv::InputOutputArray a1, cv::InputOutputArray a2, cv::InputOutputArray a3, WarmUpType wtype = WARMUP_WRITE);
467 _declareHelper& out(cv::InputOutputArray a1, cv::InputOutputArray a2, cv::InputOutputArray a3, cv::InputOutputArray a4, WarmUpType wtype = WARMUP_WRITE);
469 _declareHelper& iterations(unsigned int n);
470 _declareHelper& time(double timeLimitSecs);
471 _declareHelper& tbb_threads(int n = -1);
472 _declareHelper& runs(unsigned int runsNumber);
474 _declareHelper& strategy(enum PERF_STRATEGY s);
477 _declareHelper(TestBase* t);
478 _declareHelper(const _declareHelper&);
479 _declareHelper& operator=(const _declareHelper&);
480 friend class TestBase;
482 friend class _declareHelper;
487 _declareHelper declare;
489 void setVerified() { this->verified = true; }
492 template<typename T> class TestBaseWithParam: public TestBase, public ::testing::WithParamInterface<T> {};
494 typedef std::tr1::tuple<cv::Size, MatType> Size_MatType_t;
495 typedef TestBaseWithParam<Size_MatType_t> Size_MatType;
497 /*****************************************************************************************\
498 * Print functions for googletest *
499 \*****************************************************************************************/
500 CV_EXPORTS void PrintTo(const MatType& t, std::ostream* os);
507 CV_EXPORTS void PrintTo(const String& str, ::std::ostream* os);
508 CV_EXPORTS void PrintTo(const Size& sz, ::std::ostream* os);
513 /*****************************************************************************************\
514 * Macro definitions for performance tests *
515 \*****************************************************************************************/
516 #define PERF_PROXY_NAMESPACE_NAME_(test_case_name, test_name) \
517 test_case_name##_##test_name##_perf_namespace_proxy
519 // Defines a performance test.
521 // The first parameter is the name of the test case, and the second
522 // parameter is the name of the test within the test case.
524 // The user should put his test code between braces after using this
527 // PERF_TEST(FooTest, InitializesCorrectly) {
529 // EXPECT_TRUE(foo.StatusIsOK());
531 #define PERF_TEST(test_case_name, test_name)\
532 namespace PERF_PROXY_NAMESPACE_NAME_(test_case_name, test_name) {\
533 class TestBase {/*compile error for this class means that you are trying to use perf::TestBase as a fixture*/};\
534 class test_case_name : public ::perf::TestBase {\
538 virtual void PerfTestBody();\
540 TEST_F(test_case_name, test_name){ RunPerfTestBody(); }\
542 void PERF_PROXY_NAMESPACE_NAME_(test_case_name, test_name)::test_case_name::PerfTestBody()
544 // Defines a performance test that uses a test fixture.
546 // The first parameter is the name of the test fixture class, which
547 // also doubles as the test case name. The second parameter is the
548 // name of the test within the test case.
550 // A test fixture class must be declared earlier. The user should put
551 // his test code between braces after using this macro. Example:
553 // class FooTest : public ::perf::TestBase {
555 // virtual void SetUp() { TestBase::SetUp(); b_.AddElement(3); }
561 // PERF_TEST_F(FooTest, InitializesCorrectly) {
562 // EXPECT_TRUE(a_.StatusIsOK());
565 // PERF_TEST_F(FooTest, ReturnsElementCountCorrectly) {
566 // EXPECT_EQ(0, a_.size());
567 // EXPECT_EQ(1, b_.size());
569 #define PERF_TEST_F(fixture, testname) \
570 namespace PERF_PROXY_NAMESPACE_NAME_(fixture, testname) {\
571 class TestBase {/*compile error for this class means that you are trying to use perf::TestBase as a fixture*/};\
572 class fixture : public ::fixture {\
576 virtual void PerfTestBody();\
578 TEST_F(fixture, testname){ RunPerfTestBody(); }\
580 void PERF_PROXY_NAMESPACE_NAME_(fixture, testname)::fixture::PerfTestBody()
582 // Defines a parametrized performance test.
584 // The first parameter is the name of the test fixture class, which
585 // also doubles as the test case name. The second parameter is the
586 // name of the test within the test case.
588 // The user should put his test code between braces after using this
591 // typedef ::perf::TestBaseWithParam<cv::Size> FooTest;
593 // PERF_TEST_P(FooTest, DoTestingRight, ::testing::Values(::perf::szVGA, ::perf::sz720p) {
594 // cv::Mat b(GetParam(), CV_8U, cv::Scalar(10));
595 // cv::Mat a(GetParam(), CV_8U, cv::Scalar(20));
596 // cv::Mat c(GetParam(), CV_8U, cv::Scalar(0));
598 // declare.in(a, b).out(c).time(0.5);
600 // TEST_CYCLE() cv::add(a, b, c);
604 #define PERF_TEST_P(fixture, name, params) \
605 class fixture##_##name : public fixture {\
607 fixture##_##name() {}\
609 virtual void PerfTestBody();\
611 TEST_P(fixture##_##name, name /*perf*/){ RunPerfTestBody(); }\
612 INSTANTIATE_TEST_CASE_P(/*none*/, fixture##_##name, params);\
613 void fixture##_##name::PerfTestBody()
615 #ifndef __CV_TEST_EXEC_ARGS
616 #if defined(_MSC_VER) && (_MSC_VER <= 1400)
617 #define __CV_TEST_EXEC_ARGS(...) \
618 while (++argc >= (--argc,-1)) {__VA_ARGS__; break;} /*this ugly construction is needed for VS 2005*/
620 #define __CV_TEST_EXEC_ARGS(...) \
626 namespace cvtest { namespace ocl {
627 void dumpOpenCLDevice();
629 #define TEST_DUMP_OCL_INFO cvtest::ocl::dumpOpenCLDevice();
631 #define TEST_DUMP_OCL_INFO
634 #define CV_PERF_TEST_MAIN_INTERNALS(modulename, impls, ...) \
635 ::perf::Regression::Init(#modulename); \
636 ::perf::TestBase::Init(std::vector<std::string>(impls, impls + sizeof impls / sizeof *impls), \
638 ::testing::InitGoogleTest(&argc, argv); \
639 cvtest::printVersionInfo(); \
640 ::testing::Test::RecordProperty("cv_module_name", #modulename); \
641 ::perf::TestBase::RecordRunParameters(); \
642 __CV_TEST_EXEC_ARGS(__VA_ARGS__) \
644 return RUN_ALL_TESTS();
646 // impls must be an array, not a pointer; "plain" should always be one of the implementations
647 #define CV_PERF_TEST_MAIN_WITH_IMPLS(modulename, impls, ...) \
648 int main(int argc, char **argv)\
650 CV_PERF_TEST_MAIN_INTERNALS(modulename, impls, __VA_ARGS__)\
653 #define CV_PERF_TEST_MAIN(modulename, ...) \
654 int main(int argc, char **argv)\
656 const char * plain_only[] = { "plain" };\
657 CV_PERF_TEST_MAIN_INTERNALS(modulename, plain_only, __VA_ARGS__)\
660 #define TEST_CYCLE_N(n) for(declare.iterations(n); next() && startTimer(); stopTimer())
661 #define TEST_CYCLE() for(; next() && startTimer(); stopTimer())
662 #define TEST_CYCLE_MULTIRUN(runsNum) for(declare.runs(runsNum); next() && startTimer(); stopTimer()) for(int r = 0; r < runsNum; ++r)
666 namespace comparators
670 struct CV_EXPORTS RectLess_ :
671 public std::binary_function<cv::Rect_<T>, cv::Rect_<T>, bool>
673 bool operator()(const cv::Rect_<T>& r1, const cv::Rect_<T>& r2) const
675 return r1.x < r2.x ||
676 (r1.x == r2.x && r1.y < r2.y) ||
677 (r1.x == r2.x && r1.y == r2.y && r1.width < r2.width) ||
678 (r1.x == r2.x && r1.y == r2.y && r1.width == r2.width && r1.height < r2.height);
682 typedef RectLess_<int> RectLess;
684 struct CV_EXPORTS KeypointGreater :
685 public std::binary_function<cv::KeyPoint, cv::KeyPoint, bool>
687 bool operator()(const cv::KeyPoint& kp1, const cv::KeyPoint& kp2) const
689 if (kp1.response > kp2.response) return true;
690 if (kp1.response < kp2.response) return false;
691 if (kp1.size > kp2.size) return true;
692 if (kp1.size < kp2.size) return false;
693 if (kp1.octave > kp2.octave) return true;
694 if (kp1.octave < kp2.octave) return false;
695 if (kp1.pt.y < kp2.pt.y) return false;
696 if (kp1.pt.y > kp2.pt.y) return true;
697 return kp1.pt.x < kp2.pt.x;
701 } //namespace comparators
703 void CV_EXPORTS sort(std::vector<cv::KeyPoint>& pts, cv::InputOutputArray descriptors);
706 #endif //OPENCV_TS_PERF_HPP