updated help message (opencv_stitching)

modules/stitching/main.cpp

@@ -73,7 +73,7 @@ void printUsage()
         "      are for CPU mode.\n"
         "\nMotion Estimation:\n"
         "  --work_megapix <float>\n"
-        "      Resolution for image registration step. The default is 0.6.\n"
+        "      Resolution for image registration step. The default is 0.6 Mpx.\n"
         "  --match_conf <float>\n"
         "      Confidence for feature matching step. The default is 0.7.\n"
         "  --conf_thresh <float>\n"
@@ -87,7 +87,7 @@ void printUsage()
         "  --warp (plane|cylindrical|spherical)\n" 
         "      Warp surface type. The default is 'spherical'.\n"
         "  --seam_megapix <float>\n"
-        "      Resolution for seam estimation step. The default is 0.1.\n"
+        "      Resolution for seam estimation step. The default is 0.1 Mpx.\n"
         "  --seam (no|voronoi|gc_color|gc_colorgrad)\n" 
         "      Seam estimation method. The default is 'gc_color'.\n"
         "  --compose_megapix <float>\n"