Misc. modules/ cont. pt2

Found via `codespell`

modules/imgproc/src/deriv.cpp

@@ -237,7 +237,7 @@ namespace cv
                     ivx::Image::createAddressing(dst.cols, dst.rows, 2, (vx_int32)(dst.step)), dst.data);
 
             //ATTENTION: VX_CONTEXT_IMMEDIATE_BORDER attribute change could lead to strange issues in multi-threaded environments
-            //since OpenVX standart says nothing about thread-safety for now
+            //since OpenVX standard says nothing about thread-safety for now
             ivx::border_t prevBorder = ctx.immediateBorder();
             ctx.setImmediateBorder(border, (vx_uint8)(0));
             if(dx)
@@ -481,7 +481,7 @@ void cv::Scharr( InputArray _src, OutputArray _dst, int ddepth, int dx, int dy,
     if( scale != 1 )
     {
         // usually the smoothing part is the slowest to compute,
-        // so try to scale it instead of the faster differenciating part
+        // so try to scale it instead of the faster differentiating part
         if( dx == 0 )
             kx *= scale;
         else