Merge branch 2.4

diff --cc modules/ts/src/ts_perf.cpp
index 459e24f,70dcfe6..fa2e368
--- 1/modules/ts/src/ts_perf.cpp
--- 2/modules/ts/src/ts_perf.cpp
+++ b/modules/ts/src/ts_perf.cpp
@@@ -11,25 -11,26 +11,26 @@@ unsigned int TestBase::iterationsLimitD
  int64 TestBase::_timeadjustment = 0;
  
  const std::string command_line_keys =
 -    "{   |perf_max_outliers   |8        |percent of allowed outliers}"
 -    "{   |perf_min_samples    |10       |minimal required numer of samples}"
 -    "{   |perf_force_samples  |100      |force set maximum number of samples for all tests}"
 -    "{   |perf_seed           |809564   |seed for random numbers generator}"
 -    "{   |perf_threads        |-1       |the number of worker threads, if parallel execution is enabled}"
 -    "{   |perf_write_sanity   |false    |create new records for sanity checks}"
 -    "{   |perf_verify_sanity  |false    |fail tests having no regression data for sanity checks}"
 +    "{   perf_max_outliers   |8        |percent of allowed outliers}"
 +    "{   perf_min_samples    |10       |minimal required numer of samples}"
 +    "{   perf_force_samples  |100      |force set maximum number of samples for all tests}"
 +    "{   perf_seed           |809564   |seed for random numbers generator}"
 +    "{   perf_threads        |-1       |the number of worker threads, if parallel execution is enabled}"
-     "{   perf_write_sanity   |         |allow to create new records for sanity checks}"
++    "{   perf_write_sanity   |         |create new records for sanity checks}"
++    "{   perf_verify_sanity  |         |fail tests having no regression data for sanity checks}"
  #ifdef ANDROID
 -    "{   |perf_time_limit     |6.0      |default time limit for a single test (in seconds)}"
 -    "{   |perf_affinity_mask  |0        |set affinity mask for the main thread}"
 -    "{   |perf_log_power_checkpoints  | |additional xml logging for power measurement}"
 +    "{   perf_time_limit     |6.0      |default time limit for a single test (in seconds)}"
 +    "{   perf_affinity_mask  |0        |set affinity mask for the main thread}"
 +    "{   perf_log_power_checkpoints  | |additional xml logging for power measurement}"
  #else
 -    "{   |perf_time_limit     |3.0      |default time limit for a single test (in seconds)}"
 +    "{   perf_time_limit     |3.0      |default time limit for a single test (in seconds)}"
  #endif
 -    "{   |perf_max_deviation  |1.0      |}"
 -    "{h  |help                |false    |print help info}"
 +    "{   perf_max_deviation  |1.0      |}"
 +    "{   help h              |         |print help info}"
  #ifdef HAVE_CUDA
 -    "{   |perf_run_cpu        |false    |run GPU performance tests for analogical CPU functions}"
 -    "{   |perf_cuda_device    |0        |run GPU test suite onto specific CUDA capable device}"
 -    "{   |perf_cuda_info_only |false    |print an information about system and an available CUDA devices and then exit.}"
 +    "{   perf_run_cpu        |false    |run GPU performance tests for analogical CPU functions}"
 +    "{   perf_cuda_device    |0        |run GPU test suite onto specific CUDA capable device}"
 +    "{   perf_cuda_info_only |false    |print an information about system and an available CUDA devices and then exit.}"
  #endif
  ;
  
@@@ -652,10 -660,11 +659,11 @@@ void TestBase::Init(int argc, const cha
      param_max_outliers  = std::min(100., std::max(0., args.get<double>("perf_max_outliers")));
      param_min_samples   = std::max(1u, args.get<unsigned int>("perf_min_samples"));
      param_max_deviation = std::max(0., args.get<double>("perf_max_deviation"));
 -    param_seed          = args.get<uint64>("perf_seed");
 +    param_seed          = args.get<unsigned int>("perf_seed");
      param_time_limit    = std::max(0., args.get<double>("perf_time_limit"));
      param_force_samples = args.get<unsigned int>("perf_force_samples");
 -    param_write_sanity  = args.get<bool>("perf_write_sanity");
 -    param_verify_sanity = args.get<bool>("perf_verify_sanity");
 +    param_write_sanity  = args.has("perf_write_sanity");
++    param_verify_sanity = args.has("perf_verify_sanity");
      param_threads  = args.get<int>("perf_threads");
  #ifdef ANDROID
      param_affinity_mask   = args.get<int>("perf_affinity_mask");