both tests by picture and rand mat
bug fix
copyright fix
Fixed error in case corners not found
fixing OCL run condition (build program failure for comparison 64F Mat with Scalar)
Merge pull request #2567 from apavlenko:fix_compare_scalar
Merge pull request #2562 from akarsakov:gftt_fix
Merge pull request #2499 from mlyashko:back_proj_fix1