root/modules/imgproc/test/

[..]
  1. ocl/
  2. test_approxpoly.cpp
  3. test_bilateral_filter.cpp
  4. test_boundingrect.cpp
  5. test_canny.cpp
  6. test_color.cpp
  7. test_connectedcomponents.cpp
  8. test_contours.cpp
  9. test_convhull.cpp
  10. test_cvtyuv.cpp
  11. test_distancetransform.cpp
  12. test_emd.cpp
  13. test_filter.cpp
  14. test_floodfill.cpp
  15. test_grabcut.cpp
  16. test_histograms.cpp
  17. test_houghLines.cpp
  18. test_imgproc_umat.cpp
  19. test_imgwarp.cpp
  20. test_imgwarp_strict.cpp
  21. test_intersection.cpp
  22. test_lsd.cpp
  23. test_main.cpp
  24. test_moments.cpp
  25. test_pc.cpp
  26. test_precomp.hpp
  27. test_templmatch.cpp
  28. test_thresh.cpp
  29. test_watershed.cpp
[..]