Merge pull request #9075 from TonyLianLong:master

Remove unnecessary Non-ASCII characters from source code (#9075)

* Remove unnecessary Non-ASCII characters from source code

Remove unnecessary Non-ASCII characters and replace them with ASCII
characters

* Remove dashes in the @param statement

Remove dashes and place single space in the @param statement to keep
coding style

* misc: more fixes for non-ASCII symbols

* misc: fix non-ASCII symbol in CMake file

modules/imgproc/src/connectedcomponents.cpp

@@ -2586,7 +2586,7 @@ namespace cv{
         }
     };//End struct LabelingGranaParallel
 
-    // Based on �Optimized  Block-based Connected Components Labeling with Decision Trees�, Costantino Grana et al
+    // Based on "Optimized  Block-based Connected Components Labeling with Decision Trees", Costantino Grana et al
     // Only for 8-connectivity
     template<typename LabelT, typename PixelT, typename StatsOp = NoOp >
     struct LabelingGrana{

modules/imgproc/src/grabcut.cpp

@@ -47,7 +47,7 @@ using namespace cv;
 
 /*
 This is implementation of image segmentation algorithm GrabCut described in
-"GrabCut — Interactive Foreground Extraction using Iterated Graph Cuts".
+"GrabCut - Interactive Foreground Extraction using Iterated Graph Cuts".
 Carsten Rother, Vladimir Kolmogorov, Andrew Blake.
  */