fixed crash in color-lab (ticket #627)

modules/imgproc/src/color.cpp

@@ -1200,7 +1200,7 @@ static void initLabTabs()
     static bool initialized = false;
     if(!initialized)
     {
-        float f[LAB_CBRT_TAB_SIZE+1], g[GAMMA_TAB_SIZE], ig[GAMMA_TAB_SIZE], scale = 1.f/LabCbrtTabScale;
+        float f[LAB_CBRT_TAB_SIZE+1], g[GAMMA_TAB_SIZE+1], ig[GAMMA_TAB_SIZE+1], scale = 1.f/LabCbrtTabScale;
         int i;
         for(i = 0; i <= LAB_CBRT_TAB_SIZE; i++)
         {

tests/cv/src/tsysa.cpp

@@ -90,7 +90,7 @@ const char* blacklist[] =
     "warp-remap",                  //ticket 576
     "warp-resize",                 //ticket 429
     "warp-undistort",              //ticket 577
-    "color-lab",                   //ticket 627
+    //"color-lab",                   //ticket 627
     0
 };